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Domestic Building Services Compliance Guide: 2010

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2. Section 6 Community heating systems 87 Table 27 Recommended minimum standards for domestic hot water production storage and water treatment heat meters and commissioning for community heating Community New systems Supplementary information heating 2 0 A suitable system for A suitable long term programme of Water introduction of water water treatment is essential to preserve treatment treatment chemicals the life of the community heating into the community system by limiting internal corrosion heating system ina Additional chemical and physical controlled manner with 1 treatment should be evaluated facility for monitoring of especially for larger systems including water quality should be removal of oxygen by physical provided means softened water supply side stream filtration biocide 3 0 Provision should be Heat meters made in the design for including heat meters either at the time of installation or at a later date without major pipework changes 4 0 The community heating 1 Where the central heat source Commissioning system should be commissioned so that the design volume flow rates are supplied to each dwelling and there is no excessive bypassing of water that would lead to higher pumping energy use The flow rates in individual heat emitters should be balanced using appropriate return temperatures or by using calibrated control valves The systems
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4. 68 Domestic Building Services Compliance Guide 2010 Edition Aianijap e ed o Aa 1e Siapjoyasnoy siy MOjag se pauiajaid ale by QGZ UU SIayUNG INQ ni pijos JOY Dalle 51 jany qnuenb uunuululuu ON pasn aq ou pjnoys pue uu s s p dulnd Am e sased wos ul HND SIY p sn q eul l s S uoudisouu u e pue JIeJ J AAO WOOJYJEY 94 luOuuuuOD SI SIY Dad ai HuLapjNOWs v uuouJ 1624 edissip o O eIDEI YP e u Gala suu s s Hulzeay e4 Uad l n pilos ISON uonewojul A1eyu uu ddns snou ay JO ay uodn pu d p 6L10 S y 10 215 y uoneEoo p pue JUu lu AUOD2 e ul jan JO s hn uenb 5 JO DBeio1s 10 peuu aq p nous UOISIAOId e p sn SI 3IA p 2eJu lui 5 jJeuuu u ay Aq p llluuj d ileou ds 1JSUAA1d gt 2x s sSS A uolisuedx YIM Suu 1 S s Bulle u pajeas o Da aq JOU p nous sadueljdde jan pijos p nous sio elpel yea e y Jo Suluonisod pue Buizis ay uo suon n nsul 5 y q U sou aq PINOYS uone n24D paduund n 51 l lloQ J UAA abes0 s Ion o z 5 OL suu s s 1u uu 32e d 1 pue M N 6u
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7. 1 1 ON P UIYJIM S UOZ JO 01 2 e ot uoneuuo ul 6une u Aseyuawajddns suu s s JuaWade day swia sAs M N l n p los sus 3s4s Bune u l n piyos J01 U0D 104 5 p pu uuuuio32 u L lqEL 74 Domestic Building Services Compliance Guide 2010 Edition Table 22 Recommended minimum standards for insulation of pipevvork in solid fuel central heating systems Nevv systems Supplementary information a Pipes should be insulated to comply with the Insulation of pipework in unheated maximum permissible heat loss indicated in the areas Supplementary Information column and labelled Extra provision may need to be made to accordingly as follows protect central heating and hot water i Primary circulation pipes for heating and hot pipework in unheated areas against water circuits should be insulated wherever freezing Guidance is available in they pass outside the heated living space or BS 5422 2009 Method for specifying through voids which communicate with and thermal insulating materials for pipes are ventilated from unheated spaces tanks vessels ductwork and equipment il Primary circulation pipes for domestic hot operating within the temperature range water circuits should be insulated throughout 40 C to 700 C their length subject only to practical BRE Report No 26
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9. 1 JO 2 9002 665 58 S JUBA JAJEM DIEDUEIS U 5 JAJEM JO SJBINPA 25 21 Dulsop azeydsoyd jod s10 Giyul 28 PUL UOISOUOD PAUIQUIOD SIOPGIYU e3s uul EDILUBY JO sn U A0 p JlJo puo2 aq UD lp s ulr JO panoidde Lapping aq pinoys sioliqluu uonewsojul Aveyuawajddns JO uone nuun22e Jo y np L 0 si loq UOIJEUIGWUOD JO JINDIID 1972M JOY ay pue 5 1 PAN O D J dU 7291 O peuu aq pinous UOISIAO1d uol l b Jad syed 002 Sp x ss upieu Jop E20 SUIEWW BY D sl pouu 1J ioq JENPIAIPU JO slu uj uinb i lpD ds pue spnpod 1u uu e 1 leludoidde 104 suolpnulsul uonjie1suisi In pejnueuJ jioq JU 0 os e p nous sj je Su 6pnis pue lP S JO UOIJEWOJ dy pue UOISO41OD 0 1 02 0 n l Aue y 0 pappe aq p nous puepue s a elWdosdde 194740 JO uonp lp ds sJaunpepnuew ay Huljaaw JOPWQIYU 1u u1 e 11 1972M e3luu uD ju uuye 1 e Wayshs ay JO Bulj iJ euly Buundq q JazeM pue J jioq Mau e Hullje su 1no uonesed usd p usnil pue p up p lu5nolou uu 1 s s swiaysAs Mau 101 5 e q pinous 54 15 5 Hue y jesyjuaD e Ob suu s s zu wDejd y swia sAs M N 6une u M p nunuo 2 sus s
10. 100 Domestic Building Services Compliance Guide 2010 Edition Table 33 Heat pump technologies continued Warm water and hotwater Warmair Heat pump type systems systems Water source systems WSHP Water to Water to air Heat eneroy is extracted indirectly from a water source water using closed pipe loops as a heat exchanger The closed loop is connected back to the water to water heat pump The water source may be a lake pond or river or other stable water source The fluid circulating in the closed loop will normally be water but a water propylene glycol or accepted equivalent antifreeze mixture may be used depending on operating temperatures Open loops may also be used subject to the permits being obtained from the Environment Agency Heat may be supplied to the dwelling either by a water based heating system water to water heat pump or by an air distribution system water to air heat pump Air source systems ASHP Air to water Air to air Air source heat pumps extract heat directly from the ambient air Heat is supplied to the dwelling either by a water based heating system air to water heat pump or by an air distribution system air to air heat pump Air to air heat pumps may be single package or split systems All heat pump systems are at their most efficient when the source temperature Is as high as possible the heat distribution temperature is as low as possible and pressure losses in air an
11. 12 Domestic Building Services Compliance Guide 2010 Edition Summary of recommended minimum energy efficiency standards for building services continued Building service Standard One off tiled mortared stoves Community heating systems 70 Batch Seasonal efficiency Boilers See Non domestic building services compliance guide Mechanical ventilation systems Specific fan power SFP max Intermittent extract ventilation systems 0 5 VV 5 Continuous extract ventilation systems 0 7 VV 5 Continuous supply ventilation systems 0 5 VV 5 Continuous supply and extract with heat 1 5 VV s recovery ventilation systems Heat recovery Dry heat recovery efficiency Balanced mechanical ventilation systems 70 Heat pump systems Seasonal Performance Factor BS EN 15450 Tables C1 amp C2 SPF New build Existing build Air water 2 7 2 5 Ground water 3 5 3 3 Water water 3 8 3 5 Comfort cooling systems Energy efficiency ratio EER Air cooled air conditioners working in cooling 2 4 mode Water cooled air conditioners working in 2 5 cooling mode Fixed air conditioners gt Class C in Schedule 3 of the labelling scheme The Energy Information Household Air Conditioners No 2 Regulations 5 2005 1726 Section 1 Introduction 13 Summary of recommended minimum energy efficiency standards for building services continued Buildi
12. BS 5970 2001 Code of practice for thermal insulation of pipes and equipment BS 6700 2006 Specification and design installation testing and maintenance of services supplying water for domestic uses within buildings and their curtilages 122 Domestic Building Services Compliance Guide 2010 Edition Section 12 Lighting 12 1 Scope of guidance This section provides guidance on the specification of fixed internal and external lighting for new and existing dwellings to meet relevant energy efficiency requirements in building regulations 12 2 Keyterms Circuit watt means the power consumed in lighting circuits by lamps and where applicable their associated control gear including transformers and drivers and power factor correction equipment Light fitting means a fixed light or lighting unit that can comprise one or more lamps and lampholders control gear and an appropriate housing The control gear may be integrated in the lamp or located elsewhere in or near to the fixed light Fixed external lighting means lighting fixed to an external surface of the dwelling supplied from the occupier s electrical system It excludes lighting in common areas of blocks of flats and in other communal accessways 12 3 Internal and external lighting Fixed internal and external lighting should meet the minimum standards for efficacy and controls in Table 40 Section 12 Lighting 123 Table 40 Recommended minimum sta
13. BRE Report No 262 Thermal insulation constraints imposed by the need to penetrate avoiding risks 2002 Edition joists and other structural elements iii All pipes connected to hot water storage vessels including the vent pipe should be insulated for at least 1 metre from their points of connection to the cylinder or they should be insulated up to the point where they become concealed Where insulation is labelled as complying with this guide it must not exceed the following heat loss levels iv If secondary circulation is used all pipes kept Pipe outside Maximum hot by that circulation should be insulated diameter heat loss Standards for internal pipework in 8 mm 7 06 W m replacement systems a Whenever a boiler or hot water storage vessel 10 mm 7 23 Wim is replaced in an existing system any pipes that EE 7 35 W m are exposed as part of the work or are otherwise accessible should be insulated as recommended 15 mm 7 89 Wim above or to some lesser standard where 22mm 9 12 W m practical constraints dictate 28mm 10 07 Wim 35mm 11 08 Wim 42mm 12 19 W m 54mm 14 12 W m ln assessing the thickness of insulation required standardised conditions should be assumed in all compliance calculations based on a horizontal pipe at 60 C in still air at 15 C Further guidance on converting heat loss limits to insulation thickness for specific thermal conductivities is available in TIMSA HVAC Gu
14. pynoys 54 bull e su 01 42 3u u n oq p llo4uo qu uudinb l v YUM HOdSSed 19 109 JuajeAinba JO L GD 8 01 42 Suoy Aew si quu uu Hurinjdeynuew aduel dde HO 23140 5 5 JSISSe SYJOM HUIUOISSILILUOD pue uoleJ e sul D 4IJ llO no bul iieo si ulO QP IPAP ase 5 papuelg 23140 UOU PUP SUOSJ d JUaJIdWOD p v s D g 24140 Jo asn ay 10 ase swoj papuelg 23120 uonewojul Aveyuawajddns suu s s Juawade day swia sAs M N Duuots 5 2 OS 6une u 78M p nunuo 2 sui s s Bune u le nu OM p 1ltJ JiO 104 Buluolssiululo pue uone ed ld wa sAs abe0 s 19 eM JOY uone n24iD 55 JO sp4epue3s 6 lqEL Section 3 Oil fired space heating and hot water systems 43 lloq uonpulqulo GU SE u2ns Zisno upl1usisul p onpoud si 1942M 104 v JOU si uoz Ja EM JOY ayeiedas v q s uoz s uoz Sunp u adeds o uonippe Bune u SUH S S Mau 101 e Ul UOZ eAA10U e ney Pinoys sHul jamp y e 02 jeludoidde jou 51 fonuoo Jo Huluoz qns 1001 18101 Y 10 0202 UEL 51 Du y YDIYM ul SHul jamp ue d u do AaJO s a 6uls 104 j S O4JUOD
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17. Y JO 2 INHeYsSOWWaYL e yei Pulung 011 Sait u do 3d x sadueldde V suu s s 1u uu 52e d u swia sAs M N 6une u l n PIOS suu s4s Bunme a u f ni pilos Jo 01 U0 40 5 p pu uuuuo3 u L lqeL Section 5 Solid fuel heating systems 73 O UOD YDO J2 U Jajiog pue pue Hulu Duluoz 20005 v s uu 250 6 5 O1 UO JUBLUaHeUeU 19 109 Aue g papinosd ag eul 501140 s ni 49410 pnpuul o 5 beyoed Huyeay ay Ji ilep ds 4ainjde NuUeU v WOI xuppinb 5 o 1461100 1 SI 1 JO4JUOD 2 1 pue UOIJESUBALUOD 1 U P MA YIM Dal q ULI SWIA SAS f n pilos LWINUIIUILU Je q do o l lloq BY BSNED JJIAA UIN l YIIYM dund v HO 2145 JIM 25 SOULI U WOOL Y SUIAASAS 5 1501 u uonduunsuo o ulnuululul e q UeD ndino adue dde ay 119 Aado ndino 194 AY HO 2115 O qIssod JOU SI 11 uoniuD 3neuuo ne nov JO S 10 S JEIY INOyYuM s 2ueljdde JO p J u2 eq Jduuis uuos uj J INPejnuew y Ag papuaewulore JI Del aq uo 5 v 104 pueuu p OU si UBYM D nel do woy l S S v uand o JUaWabuUeLe BULA e Ag
18. connected to acommon high water temperature supply i e operating at more than 60 C should be provided with a separate means of reducing the water temperature to the floor heating system 2 0 a Each room should have its own Room temperature control device however temperature it may be acceptable for adjacent rooms control with similar function e g kitchens and Wet and utility rooms to share a thermostat or electric sensor underfloor b Bathrooms or en suites which share a heating heating circuit with an adjacent bedroom systems will provide heat only when the bedroom thermostat is activated In such cases the bathroom or en suite areas should be fitted with an independent towel rail or radiator c Weather compensating controllers should be installed 92 Domestic Building Services Compliance Guide 2010 Edition Table 29 Recommended minimum standards for control of vvet and electric underfloor heating systems continued Underfloor Nevv systems Supplementary heating information 3 0 a Dvvellings vvith a total usable floor area Facilities for Time control up to 150 m should be divided into automatic setback of VVetand at least tvvo zones vvith independent room temperature electric temperature control one of which is to a lower level at underfloor assigned to the living area night or during heating b Dwellings with a total usable floor area unoccupied periods systems grea
19. Guide to good practice instructions for appropriate pumps treatment products and special HVCA July 2007 requirements for individual 2 appliance models MIS 3005 Requirements for contractors undertaking the supply design installation set to work commissioning and handover of microgeneration heat pump systems BERR 2008 3 0 a For full heating the heat pump The heat pump may be utilised Domestic and any supplementary domestic forall or part of the DHW hot water hot water heating should be load During the DHW heating capable of supplying water in period the heat pump may the range 60 C to 65 C This is applicable to ground to water water to water and air to water type heat pumps If the heat pump is not capable of supplying water at these temperatures supplementary heating should be provided and controlled as described in other sections of this guide Controls should include an auxiliary heating regime to 60 C or more for disinfection purposes The domestic hot water DHVV system should include a tank thermostat and a time clock to optimise the time taken to heat the water not necessarily be providing heated water to the space heating system Section 9 Heat pump systems 105 Table 34 Recommended minimum standards for vvarm vvater and hotvvater heat pumps ground to vvater vvater to vvater and air to vvater systems continued VVarm and hotvvater Supplementary
20. Jo 04202 10 SPAePUL S p pu uuuuo3 u OL lqEL Section 3 Oil fired space heating and hot water systems 47 Table 11 Recommended minimum standards for insulation of pipework in oil fired wet central heating systems New systems Supplementary information a Pipes should be insulated to comply with the Insulation of pipework in unheated maximum permissible heat loss indicated in the areas Supplementary Information column and labelled Extra provision may need to be made to accordingly as follows protect central heating and hot water i Primary circulation pipes for heating and hot pipework in unheated areas against water circuits should be insulated wherever freezing Guidance is available in they pass outside the heated living space or BS 5422 2009 Method for specifying through voids which communicate with and are thermal insulating materials for ventilated from unheated spaces pipes tanks vessels ductwork and ii Primary circulation pipes for domestic hot water equipment operating within the circuits should be insulated throughout their temperature range 40 C to 700 C length subject only to practical constraints e BRE Report No 262 Thermal imposed by the need to penetrate joists and insulation avoiding risks 2002 other structural elements Edition iii All pipes connected to hot water storage vessels including the vent pipe should be insulated for at least 1 metre from their
21. Microgeneration Certification Scheme MIS3001 Requirements for contractors undertaking the supply design installation set to work commissioning and handover of solar heating microgeneration systems January 2010 Energy Efficiency Best Practice in Housing CE 131 Solar water heating systems Guidance for professionals conventional indirect models CIBSE Solar heating design and installation guide ISBN 978 1 903287 84 2 CE 51 GIL59 Central Heating System Specifications CHeSS 2005 BS 7431 1991 Method for assessing solar water heaters Elastomeric materials for absorbers connecting pipes and fittings BS 6785 1986 Code of practice for solar heating systems for swimming pools prCEN TS 12977 3 2006 Performance characterisation of stores for solar heating systems prCEN TS 12977 2 2005 Thermal solar systems and components Custom built systems Test methods TS 12977 1 2001 Thermal solar systems and components Custom built systems General requirements BS EN ISO 9488 2000 Solar energy Vocabulary BS EN 12976 2 2006 Thermal solar systems and components Factory made systems Test methods BS EN 12976 1 2006 Thermal solar systems and components Factory made systems General requirements BS EN 12975 2 2006 Thermal solar systems and components Solar collectors Test methods BS EN 12975 1 2006 Thermal solar systems and components Solar collectors General
22. O1 UOD 1 u eAIb ue 0 JO 5 115 WI 19 Sg e se yons 12npoid ay uo D lil qe Aled pinous si pull Jop OY Jaddod y AM Ul BDUeWWOPad s bupu x eaYy A SS A JO d 1 AI ep uAA Ul SSO e y Hulpueys II 1591 ul Dede euluuou l SS A d 1 71 Uoneuulolul HBUIMO O v UUM e ed p nous S SS A 5 Ja eM Joy y D 6une u suu s s 1u uu 32e d 1 pue M N l n pilos p nunuo Bune u le nu jan pijos 104 1551 2 pue uolesedaid 5 5 abe10 s 193M 1ou aHe10 s f n l 3s4S 10 5 0Z lqEL Section 5 Solid fuel heating systems 71 DY Ap UP BY 2u Jjo Ue SI Bale O1 U02 OUUS E Olul uol e u uun2op lidoldde JNOYIIM 1502 10 POOM JO BY 150 Qu buus BOW q ACW YIIYM suon ninsul s JOINIDE NUEWW u ul pue suonen Hulpjing ul siu ud linb l YIM ul Hu UOISSILULUOD pue uoneJje su no 2 U 161 HIHI Wad SUOSIAA YONG v JH YUM 91 91E Oym Ssu JJe su Da uol eje su u no Aled pinoys u duuo2 ase oym suosiad Au uonewojul Azeyu ul yddns D DIAO1d aan jenuew Jasn S l lm einupul y Buipn pur sasn ay o UO eJadO S pue l s
23. Sslulod abejuadjad OM UeY aSIOM JOU q pue 54 15 5 N U JO p ulJ p se aq p nous AdUAIDIJJa jeuose s joq e 06 Z8 uey sSS JOU aq pinous 5002 ANAIS 40 6002 ANAIS J lloq sbuyjamp 104 2 JUBLUSSASSE 15 1 J Jloq y o 212 ay ul aduepinb ay Aq payesjsuowap aq ued Adualdiya 1J ioq JO sju ui uinb 1 ay YIM aduel dwod sbul jamp Sunsix ul q 0 QQ uey ss 1ou aq p nous 5002 8035 40 6002 408035 100 ul od 9y o q PINOYS s lloq ol P si jioq uoneulqulo 0 GB UY Sol JOU aq pinovs OU DIJJ S00 ANAS oU JO 9578 uey 559 JOU aq p nous ou ni H 6002 ANEGAS 49 109 ul Sump JO lnp oold u uuss sse uonejjesul JO Buisu puo2 y o pinD 57D ay l uepinb y Aq payesjsuowap aq ued Ou piJJ d lloq JO s UaWAaYINDaY Y YM xup lduuoo sul jamp l 6002 ANAIS Aq payed se 88 JO 88 UU ss 1ou aq p nous 6002 ANIGAS s lloq ay q adj HBulsuapuod dVS ul pasinas u q seu Du llIJJ yoyMs 10 y JO aq pinous s lloq y e ou nijJj3 POYJEW WNGGIS ql Jeng BulAayoAul zou s u uu 5e d u si ioq 01 uonewsojul suu s s 1u uu 2e d tui
24. Technical Handbook or Technical Booklet does not guarantee compliance with building regulations If you follow the relevant guidance in an Approved Document Technical Handbook or Technical Booklet and in any document referred to such as this guide which provides additional information to help you follow that guidance there is a legal presumption that you have complied with building regulations However in every case it is for the building control body to decide whether work complies with building regulations So you should always check with the building control body before you start work what they consider it is necessary for you to do to comply with building regulations Section 1 Introduction 7 1 5 How to use this guide The guide comprises four self contained fuel based sections and nine technology specific sections Fuel based sections Section 2 Gas fired primary and secondary space heating and hot water Section 3 Oil fired primary and secondary space heating and hot water Section 4 Electric primary and secondary space heating and hot water Section 5 Solid fuel primary and secondary space heating and hot water Technology specific sections Section 6 Community heating Section 7 Underfloor heating Section 8 Mechanical ventilation Section 9 Heat pumps Section 10 Comfort cooling Section 11 Solar water heating Section 12 Lighting Section 13 Micro combined heat and power Section 14 Heating system circ
25. collectors and BS EN 12975 and including at least storage vessels labelling hot water the following with the following stores i name of manufacturer information is also li collector type recommended ili serial number e Total netfluid content iv year of production Of secondary volume v gross area of collector normally heated by vi aperture area of collector each heat exchanger vil net absorber area of collector where present 1 0 vill Maximum operation pressure litre ix stagnation temperature at 1000 e Thetype fluid W m and 30 C ambient content maximum x volume of heat transfer fluid pressure and surface xi weight of empty solar collector area of all heat b All hot water storage vessels should exchangers carry a label with the following information i lli V V vl Vil manufacturer s name nominal overall capacity in litres dedicated solar capacity in litres standing heat loss in kWh day type of vessel back up heating heat exchanger performance in kW where present solar heating heat exchanger performance in kW 118 Domestic Building Services Compliance Guide 2010 Edition Table 38 Recommended minimum standards for labelling commissioning and documentation for solar hot water systems continued Commissioning Solar water heating New and replacement systems 2 0 a Asigned and dated commissioning certificate should be complete
26. leludoidde 104 suolpniulsul uolnjie1su si n ejnueuu Joo y 0 os e p nous si je Ssu 6pnis pue lP S JO ay pue UOISO41OD OJ1UOD 0 n l Ade y 0 p ppe aq p nous piepue1s leludoidde 194740 JO uolle2lJip ds sJaunpepnuew ay Bun uu 1u ul e 1 1972M 6210 yu une n e Wayshs ay JO Du jeu Duungd q JazeM pue lloq Mau e Hullje su no uonesed usd p usnil pue p up p lubnolou uu 1s s su s sAA u sy e qplnoussuuJ ls s Huie y esyjuaD e Ob suu s s 1u uu 2e d u swa shs Man Bune y z m 1 52 p nunuo 2 sus s4s Bune u le nu aM 5 104 Buluolssiululo pue uonesedaid wa sAs abe0 s 19 eM JOY uone n24D 55 104 Sp4epue3s LUNWIUILU lqEL 20 Domestic Building Services Compliance Guide 2010 Edition p pzoo l aq UBD SIO IQIUUI pue SI UP DD Ul S JO slejap ajdwexa 104 Spa pue BUIDIAIAS Lila 15155 O JAPJO Ul UONE EISUI 94 1noqp uoneuuuoJul D4O2 1 SJ JJe sul Ajay o sipnupul UONE EISUI SIIQUIAW JAINJDE NUEW d lloq seD DIHH Ie l P PNJUI aq u 1sipyx q HUIUOISSILILUOD YEU YUE v q sn y 10 Juabe pajulodde ue sBulJJ AAD Du nsix ul MOM JO ase y Ul Japjoyasnoy ay JO y o papiAosd pynoys S D D U JJeuiy2u g y suoHe nbaJ
27. onsite Dual fuel 0 206 A UK typical blend of logs and mineral fuel as burnt by a typical householder on a dual fuel stove Smoke Control Areas Within local authority Snoke Control Areas only anthracite or other Authorised Smokeless Fuels may be used unless the property is fitted with an Exempted Appliance An exempted appliance is one that has been approved by Parliamentary Statutory Instrument for installation in smoke control areas and prospective purchasers should check that the appliance and intended fuel are permitted A list of currently authorised fuels and exempted appliances is given on the web site www uksmokecontrolareas co Uk 66 Domestic Building Services Compliance Guide 2010 Edition Supplementary information on solid fuel appliances continued Outside a smoke control area house coal or wood can be burnt on non exempted appliances Wood should always be seasoned to a moisture content appropriate to the design and performance of the appliance for example log wood not exceeding 20 to ensure maximum performance and limit the occurrence of condensation and deposits in the chimney system All solid fuel appliances require appropriate soot fire resistant chimneys discharging at high level locations as defined within building regulations Details of HETAS approved chimney products independently tested and approved to accepted standards can be found on the HETAS website The natural ventilation rates of thes
28. programmable room thermostats or iv separate timers to each circuit or v a combination of ili and iv above c The provisions for zoning for replacement systems in existing dwellings should be as for new dwellings where practical 30 Domestic Building Services Compliance Guide 2010 Edition Table 5b Recommended minimum standards for control of gas fired warm air heating with water heating Gas fired warm air heating with hot water New and replacement systems 1 0 a Pumped primary circulation to the hot water cylinder System circulation 2 0 a Independent time control of both the space heating and hot water Time and circuits temperature b Time control should be provided by use of either control i full programmer with separate timing to each circuit or ii two or more separate timers providing timing control to each circuit or ili programmable room thermostat s to the heating circuit s with separate timing of the hot water or iv atime switch programmer two channel and room thermostat c Fornewsystems Independent control of the hot water circuit should be achieved by means of a cylinder thermostat and a timing device wired such that when there is no demand for hot water both the pump and circulator are switched off d For replacement systems Independent control of the hot water circuit should be achieved where practicable for circulator water heaters of less than 6 kW output by means
29. requirements ISO 9553 1997 Solar energy Methods of testing preformed rubber seals and sealing compounds used in collectors BS 3734 1 1997 Rubber Tolerances for products Part 1 Dimensional tolerances BS 903 0 2003 Physical testing of rubber Part 0 General BS 6920 2000 Suitability of non metallic products Tor use in contact vvith vvater intended for human consumption with regard to their effect on the quality of water ISO TR 10217 1989 Solar energy water heating systems guide to material selection with regard to internal corrosion BS 8000 Workmanship on building sites BS EN 12897 2006 Water supply Specification for indirectly heated unvented closed storage water heaters BS 7671 2008 Requirements for electrical installations BS 1566 Copper indirect cylinders for domestic purposes BS 4814 1990 Specifications for expansion vessels using an internal diaphragm for sealed hot water heating systems BS 7074 Application selection and installation of expansion vessels and ancillary equipment for sealed water systems BS 5422 2009 Methods of specifying thermal insulation materials on pipes ductwork and equipment in the temperature range of 40 C to 700 C BS 5449 1990 Specification of forced circulation hot water central heating systems for domestic premises BS 6701 2010 Telecommunications equipment and telecommunications cabling
30. zzA1S0 0 Z 0 x G L O p gt x 1ou p nous Aoqe p pued q eulsjassan abes0 s JOY e 40 SSO e y Hulpuejs y VM 40 1 04102 Uoueasay 1972M 1 uaa pueog LEI y se uns Apog 1591 ue Aq jas se piepue1s yuajeninba ue JO 9007 6821 sg ym Ajdwod pinousspnpold 15 5 DE10O1S Jop JOY Doan D SOJOJS jeu y UOnP LNlbD dS ADUCUIOLIAd 10055 JOH AY JO uolej nsui u11 uu pinoys suu s s abesoys 1861 86 1E 58 YPM duuo2 p nous sun uogeuiquon abesojs yoy 000 q 1 Hed 2002 995 Sg JO S lun uonpulqulo pue SdapUl AD SyUaWAdINDal JgBueupx 1e u pue 550 5 Jaddod 149 10 q 1e u u1uliA duuo2 p nous spul Ja eM OH nq sul s s Mau SV e DE O18S 1942M 10 Jaddod e 02 suu s s JuaWade day swia sAs M N 6une u 78M p 1 J J O p nunuo 2 swia sAs Bune u le nu OM p 1ltJ Jio 104 Buluolssiululo pue uonesedaid wa sAs abes0 s 104 5 5 u pijj 104 sp4epue3s p pu uuuuo3 ti 6 lqEL Section 3 Oil fired space heating and hot water systems 39 GETOS JO U DD SuODD S 1 5 sinduil1e u 104 slu uu uinb Hulyjaqe 104
31. 2nd and 3rd family gases Section 3 Oil fired space heating and hot water systems 35 Section 3 Oil fired space heating and hot water systems 3 1 Scope of guidance This section provides guidance on the specification of oil fired space heating and hot water systems in dwellings to meet relevant energy efficiency requirements in building regulations The guidance applies to the following types of oil fired heating system wet central heating systems range cookers with integral central heating boilers vaporising appliances providing secondary heating or hot water fixed independent space heating devices 3 2 Oil fired wet central heating systems Oil fired central heating systems which are provided as new systems or replacement systems in dwellings should meet the minimum standards for a boiler efficiency system circulation hot water storage system preparation and commissioning in Table 9 b boiler interlock zoning and time and temperature control of the heating and hot water circuits in Table 10 pipework insulation in Table 11 7 All gas appliances must be installed by a competent person in accordance with the current issue of the Gas Safety Installation and Use Regulations The installation should follow the manufactureris instructions and should comply with all relevant parts of the Building Regulations and for wet systems the Water Regulations 36 Domestic Building Services Compl
32. EM JOY 10 spiepue s p pu uuuuo3 u S lqEL Section 4 Electric heating systems 57 S SZ 0 JO MOJ e 18 AOQE JO DSP 18 UO UMEIP Aq 2 S UI UOD BY JO 09 ysea 16 JUdWa a ead UO BY 2 09 0 Buile u u HuIMO O 1501 UNS p u6is p aq p nous jassaA ay a uolej do sooq JO Jaddn ay pue pue DUP ye d Up BU silhin o p 9 uuo2 aq p nous zu w j JAMO y P JO Sal 09 1SP ye Bul e u Jo ajqeded aq pinoys JuawWajaJaddn ay j sju 1uo2 gt JAPUI AD BU JO GQ 1599 ye dn Sunp u ajqeded aq p nous 1u uu j Jamo q sul s4As S1 P U 015 JO slu uu j D np q p yu Aun JEDUJD9I a p flonuo 15 OM oy UOISIAOIG pue p u A ALY JO UUM p OPL aq J uli p nous Suapul AD e 012 s1 pul 5 payeay e21112 1 U10 Se J AA Se sillun uolleuiquuo2 p 1e u J e21412 o s l dde 511 591 1 J pul O jeu uuou y SI A Z M ACP UMA ez LGO O Z 0 X SLL Apuypeye p x JOU s op sso 1e u 1194 150 U ns p le nsul Aq Alieuuud aq p nous q MUELUUO 5 1 q pazeay si pull49 suole n06 i Buipiinq yy m Bul iduloo bulpnpoul se Apog p p 19470 JO IDUNOD YDeAasay suwua sAs juawWalby Jo pieog 5118 94 Aq 1 11 2 aq 10 Dauuanun 16821 N3 Sg u1lA duuo2
33. J uli pynoys spnpolg e oz uonewsojul A1e yu uu ddns swa SAs 1u uu 32e d 1 pue M N 6une u 132 14 sus s s Bune u E 3 AA l BE403S 19 EM JOY 10 5 S lqeL 58 Domestic Building Services Compliance Guide 2010 Edition uonewsojul A1e yu uu ddns 6une u 1972M EJOS UOIDAS S suu s s 1 1Je OS Ul S SS A 15 J9 EM JOY 10 Huljjaqe 404 99S Sg JO 51 JabUeUDxX a ze y pue 550 e y y YIM Bu duuo2 se pajjaqe q pinous uol 2ni suo2 1 ddo2 o JOU YDIYM SJaPUI AD Pa Ua WAYS O1 UOD jenb Ua eAinba ue 0 JO SNJEJS WII Pasa sibad ALUS Sg 8 se yons 12npoid ay uo D lil qe Aled pinous si puli S Jop JOY Jaddod AM Ul BDUeWOPad JaHUeYDXa e u Al ep uAA Ul SSO e y Hulpueys II sall ul Dede euluuou il SSAA d 1 Uoneuuolul HBUIMO O v UUM q e HE p nous S SS A DE 0 S 1942M JOY V Buill qe1 05 YM 10 04 149 Jo pueog 5118 v se yons Apog 3s ue Aq jas se piepue1s yuajeninba ue 10 9007 Z68Z1 NI S8 0 2 pinoys spnpoid wayshs apos J eAA1ou p lju Aun 5 JeuuI u IO 11221 05 DUP LOL q U
34. L of the Building Regulations 26 Domestic Building Services Compliance Guide 2010 Edition 2 3 Gas fired range cookers with integral central heating boiler Note This section does not apply to appliances with fully independent boiler and cooker parts within a shared case For these the standards for the boiler are as set out in Section 2 2 Gas fired range cookers with integral central heating boiler within a single appliance body provided as new systems or replacement systems should meet the following standards a Theappliance should have two independently controlled burners one for the cooking function and one for the boiler b The integral boiler should have a seasonal efficiency SEDBUK 2005 or SEDBUK 2009 in excess of 7596 The manufacturer s declaration of appliance performance and SEDBUK value should include the following words L Seasonal efficiency SEDBUK xx 96 ii Case heat emission value yy kW ili Heat transfer to water at full load zz kW iv The values are used in the UK Government s Standard Assessment Procedure SAP for the energy rating of dwellings The test data from which the values have been calculated has been certified by nsert name and or identification of Notified body See www rangeefficiency org UK If the integral boiler isa condensing boiler the declaration should make clear whether the efficiency has been calculated in accordance with SEDBUK 2005 or SEDBUK 2009
35. S OS P nq bunp u ay uo JOU ULI JY S AJEA 1O351DE Je Sul O QESIADP SI II DUPU UIPUL JO SIO eIDEJI bunou UBYM J UB ead pue JO u uu 2e d i u nb suo2 pue sso DIOAP o JBPJO U sjana abesop o uonuape AGO JEC bul ed JOY p insuoo ag PINOYS siainzdesnueyy p ule uleuu H dold pue ag p nous sod ndl ay 104 AED 10 IQI UI UOISOLIOD e Wass Bul e u eua Aue ul p sn ae AL 1 DUC 01501102 10 paseasU Ue APU JQUALOS Us bup x s q e ern p llddns asoy JO lulJeyJe MO JO SIBJEM 105 1641 SAJOU 64 SY uonewojul Sl poul 4 lloq enpizipul JO sju uu uinb i jeDads pue spnpod juawj eas eludoidde 104 suolpnu sul uonpleisul s JaINe NUCW l lloq AY OS E p nous 59 154 900Z 692 58 Ul UAIG suu ls s UOISSILULUOD pue o moy UO adUePINO y NOJ OJ O q P NOM UOISIAOIC ajqeuoseay bpnis pue 25 JO UO EWIOJ Y PUL 40150 2 JOJJUOD 1 in apuuud ay o p ppe aq pinous uonpinuulo 1 vunp n yu un b n 1942M 6210 2 e WaysAs au JO Dumu jeu Hung q pue uolnesedaid lloq Mau e Hullje SU loy q no p usnil pue uu 1s s p ue p MUDnOIOU aq p nous suu s s Bulzeay jeyjuaD e WAYS
36. SHul jaMp Sunsix ul q N U JO p ull p se aq pinous 06 06 uey Sal JOU aq p nous KOU D H EUOSP S Joo 2 2002 ANAGAS s lloq au yoyms 10 JO 88 Ue Sol JOU aq pinous ou nijJ3 l n e BuiAjJoAu lou sju uu 3e d u ADUAIDILJe 6002 3ngG3S4 l loq ul e 01 suu s s 1u uu 2e d tui sul SAS M N Bunme u z m 52 suu s s aM pailj seb 10 Buluolssiululo2 pue uonesedaid wa sAs abeJ0 s 19 eM JOY uone n24D 5 5 JO 5 LUNWIUILU lqEL 16 Domestic Building Services Compliance Guide 2010 Edition SQUNJEIBAWA I eAA UINJ I MO YIIYM s nDiuu2 JO UOnesu dulo I U e AA pue Bune u 1oojji pun se u2ns Sale e u aunjeiadwa MOT uoleJ do bulsu puoo aSILUIXELU 2 S uey ss iqev l ld s n el duu UINJad uu s s ewid moj O se OS paubisap ag pjnoys sul s s pay ase si lloq D lsu puo2 aay Aveyuawajddns paduund An O p H AUOD aq Pinoys uol e n2JiD 1 5 LU 54 5 5 Bullsix padejdai aie Siajiog U UMA q swiaysAs Mau SY e u1Bu did wuNIUIWW UO suom n nsul S JaINJDeyNUeW y pue aq p nous anjer ssedAq nepuuone ue
37. appliance using an adjustable damper or other thermostatically controlled method Section 5 Solid fuel heating systems 63 Section 5 Solid fuel heating systems 5 1 Scope of guidance This section provides guidance on meeting the energy efficiency standards in building regulations for the following types of solid fuel heating appliances and systems used to deliver primary and secondary heating batch fed open fires batch fed and automatic feed dry room heaters stoves batch fed log and multi fuel appliances automatic feed pellet stoves with and without boilers batch fed and automatic feed room heaters with boilers batch fed cookers with boilers not exceeding 7 5 kW batch fed independent boilers and automatic feed anthracite wood pellet wood chip and wood log fired independent boilers e central heating systems using certain types of solid fuel appliances The guidance covers the following types of solid fuel coal anthracite manufactured smokeless fuel dual fuel wood logs wood pellets and wood chips 5 2 Solid fuel appliances for primary heating Solid fuel appliances provided as new systems and replacement systems in dwellings for primary heating should have an efficiency gross calorific value not less than specified in Table 18 for that category of appliance 64 Domestic Building Services Compliance Guide 2010 Edition Table 18 Solid fuel appliance categories and recommended mini
38. at least systems heating two space heating zones with independent zones temperature control one of which is assigned to the living area b Dwellings with a total usable floor area greater than 150 m should be provided with at least two space heating zones each having separate timing and temperature controls For single storey open plan dwellings in which the living area is greater than 70 of the total floor area sub zoning of temperature control is not appropriate 3 0 a All dwellings should have a separate hot a Asfor new VVater vvater zone in addition to space heating systems heating zones zones b A separate hot water zone is not required if the hot water is produced instantaneously such as with a combination boiler Section 2 Gas fired space heating and hot water systems 23 Table 2 Recommended minimum standards for control of gas fired wet central heating systems continued Gas fired Replacement wetheating Newsystems systems 4 0 a Time control of space and water heating a Asfor new Time control should be provided by systems unless of space i a full programmer with separate timing only the hot water and water to each circuit or cylinder is being heating ii two or more separate timers providing replaced and timing control to each circuit or separate time iii programmable room thermostat s to control for the the heating circuit s with separate hot water circuit timing of the hot wa
39. been measured as specified in insert appropriate entry from Table 6 and the result after conversion to gross using the appropriate factor from Table E4 of SAP 2009 is x The test data has been certified by insert name and or identification of Notified Body The efficiency value may be used in the UK Government s Standard Assessment Procedure SAP for energy rating of dwellings d in new dwellings each appliance should be capable either independently or in conjunction with room thermostats or other suitable temperature sensing devices of controlling the temperatures independently in areas that have different heating needs e g separate sleeping and living areas In existing dwellings wherever practical temperature controls should be upgraded to the standards required for new dwellings Table 6 Acceptable types of natural gas and LPG fired fixed independent appliances for primary space heating British Standard designation appliance type BS EN 1266 2002 ndependent gas fired convection heaters incorporating a fan to assist transportation of combustion air and or flue gases BS 7977 1 2002 Specification for safety and rational use of energy of domestic gas appliances Radiant convectors BS EN 613 2001 Independent gas fired convection heaters BS EN 13278 2003 Open fronted gas fired independent space heaters Gas fired fixed independent appliances for secondary space heating Gas fired fixed independent space
40. e y UIY M S UOZ JO O1 UO2 e Oe sui s s Juawade day swia sAs M N 6une u M p nunuoo sus s s Bune u e nu OM p ulj Jio Jo 04202 10 SPAePUL S OL 4 1 46 Domestic Building Services Compliance Guide 2010 Edition aq o p u JOU s op YOMaAld pue a GeJINS a1 sio elpel v PAPIAOIA e souul u 1 1 BY YIM 1001 BY Ul UPU 1 U20 SIOZ eIPeI UE UO JUa eAINDa JO S A PA 25 SOUL U E SU o ADDI poob 1 UMOP aq o seu Waysks y asnedaq u uu 2eJd l Ja log e JO ased y ul SUOUEIDa YIM 2uel duuo2 104 55 JOU JIYM Wess JOU A y apeibdn o Aressadau JOU SI H padejdas Hulq SI 12 SOUL U WOOL P IO Ja IOG BY SP YANS u uoduuo2 Wea SAS ENPIAIPU UC UOYM x sju uu umb J O1JUOD YDO J2 U Jajiog pue pue bulun Duluoz 2005 v s uu JEY uu s s O1JUOD JUaWIaHeUeL 19 109 Aue Ag papiAoid aq ACW SIO0U0O7 yn bso sjouodbuljeay mam ayisqam VINDVLD SI INPEJNULN sionuo JO UONEIDOSSY BY UO Pue ap SJBINIDEJNUCW UI PUNOJ ag ULI SWAa SAS OU UO S E D uoneuuo ul Aze u ul yddns sui s s JuaWade day SUH SAS M N 6une u M p 41 J JIO p nunuo3 sus s s Bune u je1 Ua OM
41. external water pump operation for ground to air and water to air systems protection for high water temperature protection for high refrigerant pressure protection for indoor air flow failure protection for external air flow failure on air to air units protection for water flow failure on ground to air and water to air systems 108 Domestic Building Services Compliance Guide 2010 Edition Table 35 Recommended minimum standards for warm air heat pumps ground to air water to air and air to air systems Warm air Supplementary heat pumps New and replacement systems information 2 0 b External controls should include Controls i room thermostat if not continued provided internal to the heat pump to regulate the space temperature and interlocked with the heat pump unit operation 1 timer to optimise operation of the heat pump Supplementary information further guidance on heat pumps EU Directives for machinery safety low voltage pressure equipment electromagnetic compatibility SAP 2009 Defra Carbon Trust Energy Technology List Heat Pumps BS EN 14511 Airconditioning liquid chilling packages and heat pumps with electrical driven compressors for space heating and cooling Parts 1 4 BS EN 15450 Heating systems in buildings Design of heat pump heating systems BS EN 15316 Heating systems in buildings Method for calculation of system energy
42. for water based heating systems BS EN 12831 2003 Heating systems in buildings Method for calculation of the design heat load BS EN 14336 2004 Heating systems in buildings Installation and commissioning of water based heating systems BS 6798 2009 Specification for installation and maintenance of gas fired boilers of rated input not exceeding 70 kW net BS 5871 1 2005 Specification for the installation and maintenance of gas fires convector heaters fire back boilers and decorative fuel effect gas appliances Gas fires convector heaters fire back boilers and heating stoves 2nd and 3rd family gases BS 5871 2 2005 Specification for the installation and maintenance of gas fires convector heaters fire back boilers and decorative fuel effect gas appliances Inset live fuel effect gas fires of heat input not exceeding 15 kW and fire back boilers 2nd and 3rd family gases BS 5871 3 2005 Specification for the installation and maintenance of gas fires convector heaters fire back boilers and decorative fuel effect gas appliances Decorative fuel effect gas appliances of heat input not exceeding 20 kW 2nd and 3rd family gases BS 5871 4 2007 Specification for the installation and maintenance of gas fires convector heaters fire back boilers and decorative fuel effect gas appliances Independent gas fired flueless fires convector heaters and heating stoves of nominal heat input not exceeding 6 kW
43. fullcontact details of the installer Section 11 Solar water heating 119 Table 39 Recommended minimum standards for insulation of pipework in solar hot water systems New and replacement systems Supplementary information a All pipes of a solar primary system should be insulated throughout the length of the circuit b Allother pipes connected to hot water storage vessels including the vent pipe should be insulated for at least 1 metre from their points of connection to the cylinder or insulated up to the point where they become concealed Pipes should be insulated with materials labelled as complying with the Domestic building services compliance guide and in line with the guidance in the TIMSA guide The insulation should be suitably rated for the maximum foreseeable pipe temperature applicable and where external also be resistant to vermin attack and climatic degradation Ina dwelling that already has a solar hot water system it is recommended that the insulation should be upgraded in line with these minimum provisions where significant work such as change of solar storage is carried out A tully filled or drainback solar hot water system can have a pipe service temperature of 150 C Therefore an insulation material should be specified to accommodate this temperature An EPDM based rubber would normally be a minimum requirement for such an application Any insulation specified must be bet
44. least two space heating zones each having separate timing and temperature controls Time control should be provided by i multiple heating zone programmers or ii a single multi channel programmer or iii programmable room thermostats or iv separate timers to each circuit or v ia combination of iii and iv above For single storey open plan dwellings in which the living area is greater than 70 of the total floor area sub zoning of temperature control is not appropriate 62 Domestic Building Services Compliance Guide 2010 Edition Table 17 Recommended minimum standards for control of primary and secondary electric heating systems other than vvith electric boilers continued Electric heating Supplementary systems Nevv and replacement systems information Panel 3 0 a Time control by a programmable Panel heater heaters Local time svvitch integrated into the systems provide time and appliance or a separate time instantaneous temperature switch heat control b Individual temperature control by integral thermostats or by separate room thermostats or programmable room thermostats Storage 4 0 a Automatic control of input charge Charge control heaters Charge is the ability control to detect the internal temperature and adjust the charging of the heater accordingly 5 0 a Temperature control by adjusting Temperature the rate of heat release from the control
45. manufacturer Automatic ON OFF vaporising appliances c Room heater providing The integral thermostatic secondary room space controls as provided by heating appliance manufacturer d Room heater providing The integral or remote domestic hot water amp thermostatic controls as secondary room space provided or specified by the heating appliance manufacturer 3 5 Oll fired fixed independent space heating appliances This section provides guidance on the specification of oil fired fixed independent space heating appliances for dwellings Fixed independent space heating appliances may be installed as a means of primary or secondary space heating 50 Domestic Building Services Compliance Guide 2010 Edition Oil fired fixed independent appliances for primary heating Oil fired fixed independent space heating appliances in new dwellings which are provided as the primary heat source should meet the following conditions a The efficiency of the appliance gross calorific value should be not less than 60 The appliance manufacturer s declaration of appliance performance should include the following words The net efficiency of this appliance has been measured as specified in OFS A102 2004 and the result after conversion to gross using the appropriate factor from Table E4 of SAP 2009 is x The test data been certified by insert name and or identification of Notified Body The efficiency value may be used i
46. of a cylinder thermostat and a timing device wired such that when there is no demand for hot water both the pump and circulator are switched off 3 0 a New dwellings with a total usable floor area up to 150 m should Space be divided into at least two space heating zones with independent heating timing controls one of which is assigned to the living area zoning b New dwellings with a total usable floor area greater than 150 m should be provided with at least two space heating zones each having separate timing and temperature controls c The provisions for zoning for replacement systems in existing dwellings should be as for new dwellings where practical 2 5 Gas fired fixed independent space heating appliances Fixed independent space heating appliances may be installed as a means of primary or secondary space heating Section 2 Gas fired space heating and hot water systems 31 Gas fired fixed independent appliances for primary space heating Gas fired fixed independent space heating appliances in new and existing dwellings which are provided as the primary heat source should meet the following conditions a the appliance should be one of the types described in Table 6 b the efficiency of the appliance gross calorific value should be not less than 63 per cent 70 net the appliance manufacturer s declaration of appliance performance should include the following words The efficiency of this appliance has
47. on this is given in the HETAS Guide and website Section 5 Solid fuel heating systems 67 c circulation fuel storage hot water storage system preparation water treatment and commissioning should be to the standards in Table 20 d control of heating and hot water circuits should be to the standards in Table 21 e pipework should be insulated to the standards in Table 22 Supplementary information Turn down values i e the ratio of high to low output a Turn down ratios are generally very good gt 10 1 for automatic feed appliances with small firebeds b Turn down ratios are less good with large batch fed appliances unless the latter are used in conjunction with a hot water accumulator c Automatic appliances are likely to require less frequent refuelling Automatic e g electric or gas ignition is now available for certain designs and reduces energy usage at times of low demand allowing boiler interlock d Some boilers have both auto ignition and fire extinguishing features Link up systems It is possible to connect together two or more heating appliances with boilers at least one of which can be solid fuel fired to maximise flexibility and efficiency For example an oil or gas boiler could be combined with a wood burning stove with boiler sited in the living room This combination with wood burning appliances will reduce overall carbon emissions Both systems should be designed to appropriate installation codes
48. only operates when flow temperature has dropped below a set level is recommended Further guidance and standards Good Practice Guide GPG234 Guide to community heating and Commercial public and domestic applications Available from the Carbon Trust BS EN 13941 2003 Design and installation of pre insulated bonded pipe systems for direct heating BS EN 14419 2003 District heating pipes Pre insulated bonded pipe systems for directly buried hot water networks Surveillance systems BS EN 253 2003 District heating pipes Pre insulated bonded pipe systems for directly buried hot water networks Pipe assembly of steel service pipe polyurethane thermal insulation and outer casing of polyethylene BS EN 448 2003 District heating pipes Pre insulated bonded pipe systems for directly buried hot water networks Fitting assemblies of steel service pipes polyurethane thermal insulation and outer casing of polyethylene BS EN 488 2003 District heating pipes Pre insulated bonded pipe systems for directly buried hot water networks Steel valve assembly for steel service pipes polyurethane thermal insulation and outer casing of polyethylene BS EN 489 2003 District heating pipes Pre insulated bonded pipe systems for directly buried hot water networks Joint assembly for steel service pipes polyurethane thermal insulation and outer casing of polyethylene 90 Domestic Building Services C
49. pappe aq pinous ju ul e 1 1972M Jed LWUaYD P luayshs ay 40 DUU Su q lloq Mau e Huljje Su yju une 1n q Jan pue 10 panoidde p usnil pue lubnolou uu 1 s s 8 aq pjnoys sioliqluu swiaysAs Mau 10 SV aq p nous 54 5 5 Bunp q jeujuaD e o z p sn aq PINOYS AJLA ssedAq ue uay ssedAq e JO UOT E e SU SIApe SUOIIDNAYSUI uolle n24D sJaunyoeynuew l lloq Y 0 p duund n o 2 aq p nous paduund uolj n24iD 1 5 YM SWaysAs n p nous sHul jamMp Mau Ul Huljsixe ae Suajlog U UAA SPN 1342M 70y 215 4 5 SUH S S Mau sv pue Sunp u adeds 104 suu s S e 01 Aveyuawajddns suu s s 1u uu 52e d tui 5 5 5 M N 6une u 1SAA3HD913 suu s s Bune u lenu J AA L f 104 Buluolssiululo pue uoneued 1d Wia SAs o 5 papuawwo y EL lqEL Section 4 Electric heating systems 53 SIOJEIPE BY HO eas Os e nq bunp u v uo JOU 1 UD 5 1511 O QES ADE SI DUPU UIPUL JO 10 SJOJEIPCI UBYM JULIE 1 PAA pue p nu B
50. points of connection to the cylinder or they should be insulated up to the point where they become concealed iv If secondary circulation is used all pipes kept hot by that circulation should be insulated Where insulation is labelled as complying with this guide it must not exceed the following heat loss levels Pipe outside Maximum diameter heat loss Replacement systems 8 mm 7 06 W m a Whenever a boiler or hot water storage vessel 10mm 7 23 Wim is replaced in an existing system any pipes that 12mm 7 35 W m are exposed as part of the work or are otherwise IE 7 89 W m accessible should be insulated as recommended 22 mm 9 12 W m above or to some lesser standard where practical lt 5 lt 7 constraints dictate 28 mm 10 07 Wim 35mm 11 08 Wim 42mm 12 19 W m 54 mm 14 12 W m ln assessing the thickness of insulation required standardised conditions should be assumed in all compliance calculations based on a horizontal pipe at 60 C in still air at 15 C Further guidance on converting heat loss limits to insulation thickness for specific thermal conductivities is available in TIMSA HVAC guidance for achieving compliance with Part L of the Building Regulations 48 Domestic Building Services Compliance Guide 2010 Edition 3 3 Oil fired range cookers with integral central heating boilers This section provides guidance on the specification of oil fired range cookers
51. regulations contain functional requirements called standards in Scotland such as requirements that buildings must be structurally stable must be constructed and fitted to ensure reasonable levels of fire protection and must be reasonably energy efficient These functional requirements are often drafted in broad terms and so it may not always be immediately clear to a person carrying out work how to comply with the relevant requirements Consequently documents are often issued which provide practical guidance on ways of complying with specific aspects of building regulations in some of the more common building situations Those documents are called Approved Documents in England and Wales Technical Handbooks in Scotland and Technical Booklets in Northern Ireland Approved Documents Technical Handbooks and Technical Booklets are intended to provide practical guidance but they are not intended to be comprehensive Consequently they may contain references to other documents which will provide more detailed information and assistance on parts of the guidance This guide is one of those documents t provides more detailed information on the guidance contained in Approved Documents L1A and L1B Section 6 of the Domestic Technical Handbook and Technical Booklet F1 about compliance with the energy efficiency requirements which apply when installing fixed building services in new and existing buildings Note Following guidance in an Approved Document
52. requirements and system efficiencies Part 4 2 Space heating generation systems heat pump systems ISO 13256 Water source heat pumps testing and rating for performance Part 1 Water to air and brine to air heat pumps and Part 2 Water to water and brine to water heat pumps CE 82 Energy Efficiency Best Practice in Housing Domestic ground source heat pumps design and installation of closed loop systems BS EN 378 Specification for refrigerating systems and heat pumps Safety and environmental requirements and system efficiencies Part 4 2 Space heating generation systems heat pump systems Microgeneration Certification Scheme MIS 3007 Product certification scheme requirements heat pumps Microgeneration Certification Scheme MIS 3005 Requirements for contractors undertaking the supply design installation set to work commissioning and handover of microgeneration heat pump systems BERR 2008 EU Ecolabel Establishing the ecological criteria for the award of the Community eco label to electrically driven gas driven or gas absorption heat pumps Heat Pump Association data sheet Air to water heat pumps HVCA TR30 Guide to good practice Heat pumps Section 10 Comfort cooling systems 109 Section 10 Comfort cooling systems 10 1 Scope of guidance This section provides guidance on the specification of fixed mechanical comfort coolin
53. s y JO uonpuepidx UnL e af pinoys Jayjeysul ay q pasn 5 5 abes0 s 1972M OY Jo J ioq ay o DyIDads aq JIAA SUO NAYsUI S U 1 SUOn n nsul S JAINJDEJNUCW JY UUM QDUPPIOIIE Ul PSUOISSILULUOD aq pinous Ju uidinb y sIonuo pue sduund uoAA did se une Juawdinba pa eldosse LU J u1 Do uu 1s s 15 1978M ul u n np i jUaNbasuod y pue e5s uul uonpinuun op Jo 21 Y 2np 1 0 S4 IOQ uolleuiQuuoD2 JO YNDI Jop JOY u pue 5 O 1972M D J Y 7291 o BPW aq pinovs UOISIAOIA uoliu Jad syed suu s s u uu 32e d 1 pue M N BHuluolssiwiwo gt OS JOY JO J ioq JO uolle ie1sui u1 qo uon ldulo uo e QOZ SP X ss upiueu Ja EM 1820 SUIELU BY J UAA D 6une u l n pilos p nunuo Bune u enu 2 jan pijos 104 Buiuoissitutuo3 pue uoneued id wa sAs Beiols 1ou aHe10 s f n uu 1s s 10 5 0Z lqEL 72 Domestic Building Services Compliance Guide 2010 Edition uonlubl gewone Uyu sadueldde o pudoldde uo ale 1591 U SUH S S M U JO p ull p SJ A v aq 10 ay qo ayeredas ullAA Ten Hulyeay y 0 S E SOWAY WOOL III JO
54. the efficiency of the appliance being replaced If the replacement involves a fuel switch then the relative carbon emissions associated with the new and existing fuels should be considered when assessing the reasonableness of the proposed new appliance The aim is to discourage replacement of an existing appliance by a significantly less carbon efficient one The minimum requirements are Replacement not involving fuel or energy switch Where the primary heating appliance is replaced by one using the same fuel or energy supply the seasonal efficiency of the new equipment should be a asstated in the relevant fuel based section of this guide and b not worse than two percentage points lower than the seasonal efficiency of the controlled service being replaced If the efficiency of the appliance to be replaced is not known efficiency values may be taken from Table 4a or 4b of SAP 2009 Replacement involving fuel or energy switch If the new heating appliance uses a different fuel the efficiency of the new service should be multiplied by the ratio of the CO emission factor of the fuel used in the service being replaced to that of the fuel used in the new service to obtain the carbon equivalent efficiency The checks described in paragraphs a and b above should then be made The CO emission factors should be taken from Table 12 of SAP 2009 1 The Boiler Efficiency Database is at www sedbuk com Note The database will give separate
55. the floor finish is specified the extra amount of system thermal insulation may be calculated using the sum of the thermal resistance of the floor finish and the thermal resistance of the underlying heated layer all multiplied by a factor of 10 c Supplementary floor heating system thermal insulation may be supplied independently or added to the statutory insulation requirement d Floor heating systems intended for cyclical operation or installed over unheated rooms should be separated from the structural floor by a layer of thermal insulation of at least 1 25 m K VV thermal resistance and installed below the heated plane 2 0 a Intermediate floors with heated rooms 1 Thermal insulation Intermediate below should have a separating layer of party floors is floors with of system thermal insulation to comply essential because heated rooms with either 1b above or BS EN1264 the floor or ceiling below wet Part 4 where the minimum thermal is directly coupled systems resistance is given as not less than to the heating R 0 75 m K VV elements 3 0 a Intermediate floors with heated rooms Intermediate below should either comply with 1 0 b floors with above or have a separating layer of heated rooms system thermal insulation where the below electric minimum thermal resistance is not less systems than R 0 5 m K VV 94 Domestic Building Services Compliance Guide 2010 Edition Table 30 Recommen
56. with integral central heating boilers for space heating and hot water in dwellings Note that the guidance applies only to twin burner cooker boilers which should not be confused with the type of range cooker described as a single burner dry heat range cooker The latter is intended only to provide a cooking function is not included in SAP 2009 calculations and does not come within the scope of building regulations energy efficiency requirements Oil fired range cookers with an integral central heating boiler which are provided as new systems and as replacement systems should meet the following conditions a the appliance should have two independently controlled burners one for the cooking function and one for the boiler b the integral boiler should have a seasonal efficiency SEDBUK 2005 or SEDBUK 2009 in excess of 80 per cent the manufacturer s declaration of appliance performance and SEDBUK value should include the following words seasonal efficiency SEDBUK xx li case heat emission value yy kW ili heat transfer to water at full load zz kW iv the efficiency values may be used in the UK Government s Standard Assessment Procedure SAP for the energy rating of dwellings The test data from which they have been calculated has been certified by insert name and or identification of Notified body See www rangeefficiency org uk If the integral boiler is a condensing boiler the declaration should make cle
57. 009 BS EN 1319 2009 BS EN 483 and certified as meeting those minimum requirements by insert name or identification of Notified Body ii Warm air unit alone This product has been assessed against the test method set out in BS EN 778 2009 or BS EN 1319 2009 and certified as meeting the minimum requirements by insert name and or identification of Notified Body Delete as appropriate Supplementary information British standards BS EN 778 2009 Domestic gas fired forced convection air heaters for space heating not exceeding anet heat input of 70 kW without a fan to assist transportation of combustion air and or combustion products BS EN 1319 2009 Domestic gas fired forced convection air heaters for space heating with fan assisted burners not exceeding a net heat input of 70 kW BS EN 483 2000 Gas fired central heating boilers Type C boilers of nominal heat input not exceeding 70 kW 28 Domestic Building Services Compliance Guide 2010 Edition Table 4 Recommended minimum standards for efficiency and installation for gas fired warm air heating systems continued b Ductwork that is newly installed or replaced should be insulated in accordance with the recommendations of BS 5422 2009 Gas fired warm air Supplementary heating New and replacement systems information 2 0 a The system should be installed in BS 5864 2004 Installation Installatio
58. 0151 707 4380 ISBN 978 1 85946 377 2 Stock code 72347 Crown Copyright 2010 n Copyright in the typographical arrangement rests with the Crown VVVVVV thenbs com This publication excluding logos may be reproduced free of charge in any format or medium for research private study or for internal circulation within an organisation This is subject to it being reproduced accurately and not used in a misleading context The material must be acknowledged as Crown copyright and the title of the publication specified This document publication is value added If you wish to re use please apply for a Click Use Licence for value added material at www opsi gov uk click use system online pLogin asp or by writing to the Office of Public Sector Information Information Policy Team Kew Richmond Surrey TW9 4DU Email licensing opsi gov uk If you require this publication in ISBN 978 1859463772 an alternative format please email alternativeformats communities gsi gov uk Mixed Sources Product group from well managed EE 9 7818599463772 FSC www fsc org Cert no 002168 1996 Forest Stewardship Council ONLINE VERSION
59. 2 Thermal insulation constraints imposed by the need to penetrate avoiding risks 2002 Edition joists and other structural elements ili All pipes connected to hot water storage vessels including the vent pipe should be insulated for at least 1 metre from their points of connection to the cylinder or they should be insulated up to the point where they become concealed iv If secondary circulation is used all pipes kept hot by that circulation should be insulated Where insulation is labelled as complying with this guide it must not exceed the following heat loss levels Pipe outside Maximum diameter heat loss Replacement systems 8 mm 7 06 W m a Whenever a boiler or hot water storage vessel 10mm 7 23 Wim is replaced in an existing system any pipes that 12 mm 7 35 W m are exposed as part of the work or are otherwise IE m 7 89 W m accessible should be insulated as recommended 22 mm 9 12 W m above or to some lesser standard where practical constraints dictate 28 mm 10 07 W m 35 mm 11 08 W m 42mm 12 19 VV m 54mm 14 12 Wim ln assessing the thickness of insulation required standardised conditions should be assumed in all compliance calculations based on a horizontal pipe at 60 C in still air at 15 C Further guidance on converting heat loss limits to insulation thickness for specific thermal conductivities is available in TIMSA HVAC guidance for achieving compliance with Part L o
60. 2M JOY BY J UAA AI pue III o UONEUIQWUOD e IIIA JO NDD 2 O SJB 5 IA JO s e SOWJaY WOOL ajqewwWelbold IA Jo q uuPu ninul ajHulse A Jo saaw weI Hod voz Buljyeay di nuu A Aq 2 aq UP s uoz bunp u eds ajesedas ay JO Hulu uu OG UU ease JOO lqEsn 270 e LU SBul j AAD 104 nol 1 ay JO Huru ayesedas YPM bunp u ay o s e SOWWAY WOOL ill JO 111210 2 O 0 102 Dun sioun 5 BOW 10 OM I n z yea o Buru ayesedas uyu nze Aq aq p nous Bune u 1942M pue adeds JO Ou WI P 6une u Ja eM pue deds yo onuo3 SWI UP sui s s Juawade day swia sAs M N 6une u M D H HO p nunuo3 sui 1s s Bune u e nu OM 01 U0 10 SPAePUL S OL lqEL Section 3 Oil fired space heating and hot water systems 45 lqeld p aq 1e souu u1 1 1872M JOY EDIUCYDIOWIOWJAUY JO SS T HAN P d sionuo2 JO BUNYI ay ey d AIPA UOZ BU JO p lnsqns aq pjnod dund puodas e ajzeludosdde jou SI A PA UOZ L 591015 24 UTANA Se U ns SBDUC SLUNIIID Ul OS
61. 4s Bune u le nu 3 AA paulj 10 104 Buluolssiululo pue uone ed ld wa sAs abe10 s 19 eM JOY 55 u piJj 104 Sp4epue3s 6 lqEL Section 3 Oil fired space heating and hot water systems 41 pue Jay eysul Buinssi v Aq s do2 e pue s sod nd uon dsul fonuo Hulpying 10 pue D4O2 1 JO 14 JO Japjoyasnoy ay YUM Met SI WO pajza Awiod ydea Adod v suonejnbey buipying y YIM 2uel duuo2 u Wa sks pue aduerdde y JO uoneiado 1121 1 y 104 HESS U ase YIIYM SYDAYD pue SYJOM pue buns l Ag lluo D2eJsi es PAUOISSILILUOD pue pajjejsul uaag aney SW JS S pue sadueldde 1 Jey MOYs o pasn q ued 0314 AQ pabeuew pue padnpoid se wia sXs PUBUINIOT p llon40 1 SIOJEIPE BY HO eas OS P nq bunp u v uo JOU Up SEA 1511 O QES VDE S 11 DUPU UIPUL JO ADIAIOS 10 SJOJEIPLI UBYM JULIE 1 PAA Bunena Jo JULIET Juanbasuod pue sso PIOAe o UJ uonewsojul Azeyu ul yddns 611 15 5 Mau 1015V e Jasn 5 sasn ay o SU pue 15 5 ay JO uolleue dx IN e n p nous Jayjeysul
62. 9 3 Warm water and hot water heat pumps Comfort cooling systems 10 1 Scope of guidance 10 2 Air cooled and water cooled air conditioners Solar water heating 11 1 Scope of guidance 11 2 Indirect systems Lighting 12 1 Scope of guidance 12 2 Key terms 12 3 Internal and external lighting Micro combined heat and power packages 13 1 Scope of guidance 13 2 Key terms 13 3 Micro CHP systems Heating system circulators 14 1 Scope of guidance 14 2 Circulators 78 78 78 90 90 90 97 97 97 99 99 101 101 109 109 109 111 111 111 122 122 122 122 125 125 125 126 127 127 127 Section 1 Introduction 5 Section 1 Introduction Note Any reference to building regulations in this guide is to building regulations in England Wales Scotland and Northern Ireland 1 1 Scope This guide provides detailed guidance for persons installing fixed building services in new and existing domestic buildings to help them comply with building regulations It covers work on both new systems and replacement systems identifying the differing requirements where these exist This edition of the guide covers conventional means of providing primary and secondary space heating domestic hot water mechanical ventilation comfort cooling and internal and external lighting In addition it covers low carbon generation of heat by heat pumps solar themal panels and micro combined heat and power systems The guide also refers to pu
63. 9 Heat pump systems 103 Table 34 Recommended minimum standards for vvarm vvater and hotvvater heat pumps ground to vvater vvater to vvater and air to vvater systems continued Warm and hot water Supplementary heat pumps New and replacement systems information 2 0 a The water distribution system Design Installation should be arranged for reverse A pressurised water and return operation or arranged distribution system commiss with alow loss manifold system with expansion vessel is ioning to maximise efficiency and recommended ease commissioning and future maintenance b Pipework not contributing to the space heating should be insulated to prevent heat loss following the guidance in the TIMSA guide If summer cooling is provided by the heat pump all water distribution pipework should be insulated to prevent condensation following the guidance in the TIMSA guide d External pipework between the dwelling and the ground heat exchanger should be insulated following the TIMSA guidance e The ground loop water circuit should be protected with an anti freeze solution and inhibitor as recommended by the heat pump manufacturer f Ground loops should be cleaned with a cleaning fluid and biocide as part of the commissioning process Constant water flow should be maintained through the heat pump Pipe sizes should be in accordance with the manufacturer s recommendations Installation I
64. If it does not then SEDBUK 2005 must be assumed The integral boiler should meet the minimum standards for system circulation hot water storage system preparation commissioning controls and insulation in Tables 1 2 and 3 gas fired central heating systems 2 4 Gas fired warm air heating Gas fired warm air heating systems provided as new systems and replacement systems should meet the minimum standards for a efficiency and installation in Table 4 and b zoning time control and temperature control for space heating in Table 5a and for space heating combined with water heating in Table 5b Section 2 Gas fired space heating and hot water systems 27 Table 4 Recommended minimum standards for efficiency and installation for gas fired warm air heating systems Gas fired warm air heating New and replacement systems 1 0 a Gas fired warm air units should meet Efficiency the requirements as appropriate to the design of the appliance of i BSEN 778 2009 or ii BS EN 1319 2009 b If a gas fired circulator is incorporated in the vvarm air unit to provide domestic hot water it should be able to deliver full and part load efficiency at least equal to that prescribed by BS EN 483 2000 The manufacturer s declaration of appliance performance should include the following words i Combined warm air unit and circulator This product has been assessed against the test methods set out in BS EN 778 2
65. NDaJ Bul jaqe 404 5 s rpoq uonelip l 2e jo sobo pue 268Z1 58 992 sg piepue1s 105 l L YIM upl dulo pnpoid o A NY ul 1894 AI Ul sso 1e u Hulpueys Ill sall Ul Dede jeuiuou 15 24 1 JO UN UO EUIQWUOD p lu Aun SS A d 1 1 Y e AUS PINOYS S SS A aem 101 V J y JO BWUUNIOA Y SI A J U AA AEP UM Lech LEO OZ DIN S O p x JOU pinous Aoqe p pue abes0 s 2 q e UI S SS A 15 JOY 40 sso 1e u Hulpueys aul a 02 uonewojul suu s s JuaWade day swaj sAs M N Bune u3 AA 1 52 5 6 5 Bune u le nu aM 56 104 Buluolssiululo pue wa sAs 5 JOY 5 5 JO 5 p pu uuuuo3 t l lqEL Section 2 Gas fired space heating and hot water systems 19 SIOJEIPE AY HO eas OS P nq bunp u v uo JOU 1 UD EY SONA JO LIPed Je SUuI O QES ADE SI DUPU UIPUL JO ADIAIOS 10 SJOJE PCI U YM JUWE 1072M pue pin Bunejn24i Jo u
66. ONLINE VERSION HM Government Domestic Building Services Compliance Guide 2010 Edition vvith 2011 amendments ONLINE VERSION 8 HM Government Domestic Building Services Compliance Guide 2010 Edition July 2011 Department for Communities and Local Government Published by NBS part of RIBA Enterprises Ltd and available from RIBA Bookshops Mail Order 15 Bonhill Street London EC2P 2EA Telephone orders General enquiries 020 7256 7222 Fax orders 020 7374 2737 Email orders sales ribabookshops com Or order online at vvvvvv thenbs comv buildingregs RIBA Bookshops RIBA 66 Portland Place London W1B 1AD Telephone 020 7256 7222 Birmingham amp Midland Institute Margaret Street Birmingham B3 3SP Telephone 0121 233 2321 RSUA 2 Mount Charles Belfast BT7 1NZ Telephone 02890 323 760 CUBE 113 115 Portland Street Manchester M1 6DW Telephone 0161 236 7691 milkandsugar 82 Wood Street Liverpool L1 4DQ Telephone 0151 707 4380 ISBN 978 1 85946 3772 Stock code 72347 Crown Copyright 2011 Copyright in the typographical arrangement rests with the Crown This publication excluding logos may be reproduced free of charge in any format or medium for research private study or for internal circulation within an organisation This is subject to it being reproduced accurately and not used in a misleading context The material must be acknowledged as Crown copyright and the title of the publication speci
67. ORPIOOSSV JOH BY JO 51 4 uol je nsui u11 uu p nous 54 5 5 15 AVE P a10 s 4 Ob swa SAs 1u uu 32e d l1 pue M N 6une u J AA2314323 3 sus 3s s Bune u le nu oan 311 99 9 u Beio s OY 40 Spsepue s qeL Section 4 Electric heating systems 59 Table 16 Recommended minimum standards for insulation of pipework in central heating systems with electric boilers New systems Supplementary information a Pipes should be insulated to comply with the Insulation of pipework in unheated maximum permissible heat loss indicated in areas the Supplementary Information column and Extra provision may need to be made to labelled accordingly as follows protect central heating and hot water i Primary circulation pipes for heating and hot pipework in unheated areas against freezing water circuits should be insulated wherever 1 Guidance is available in they pass outside the heated living space or e BS5422 2009 Method for specifying through voids which communicate with and thermal insulating materials for pipes are ventilated from unheated spaces tanks vessels ductwork and equipment ii Primary circulation pipes for domestic operating within the temperature range hot water circuits should be insulated 40 C to 700 C throughout their length subject
68. Thermal efficiency requirements for this BS EN 14829 2007 Independent gas fired type of appliance are not specified as all flueless space heaters for nominal heat input the heat produced by the combustion not exceeding 6 kW process is released into the space to be BS EN 449 2002 Specification for dedicated heated In AF 7 the did e liquefied petroleum gas appliances these appliances is classed as 90 and Domestic flueless space heaters including an adjustment is made for ventilation diffusive catalytic combustion heaters 57 heating requirement calculation 2 6 Gas fired fixed decorative fuel effect fires This type of appliance is intended for decorative purposes and therefore a minimum thermal efficiency is not specified Note that for the purposes of SAP 2009 the efficiency of decorative fuel effect fires is classed as 20 per cent for use in the space heating requirement calculation See Table 4a of SAP 2009 Gas fired decorative fires in new and existing dwellings should a meet the product standards in BS EN 509 2000 Decorative fuel effect gas appliances and b number not more than one appliance per 100 m of dwelling floor area Section 2 Gas fired space heating and hot water systems 33 2 7 Gas fires for secondary space heating provided as part of acombined fire and back boiler unit Gas fires provided as a secondary heat source as part of a combined fire and back boiler unit when provided as
69. V p sn aq JOU pinous 5 2 1972M JOY 2129 2 Ydea o saw 5 il Jo uupu ninul ajHuls e I Jo voz Bune u dynu Aq aq ue3ssiu 9 1 2 auNn esadwa pue urug ayesedas Ydea PND Ja eEM OY e JOSI uolje je Sui JO s pull 9 BY J uAA JO JUBWAIe daJ QUO UY BOW 0 a QeuOseal aq PINOM 1 Se 215 5924 150 euond x l q Lu QG uey Gap JOO 1530 e yy m SBul jaMp Ul q you 33s uiop suoleJ e sui AUAGID UO Jop JOY Dalle JO BU OJJUOD 0 A PA yo 0 2 pue suolje je sul p duund AjjnJ ile UO 5 1 1100 JO A PA BUOZ e pue Je SOWAY JapUl AD e joy JO JuaWAde daJ p uue d 104 8 5 5 Mau SV e aq pjnoys 54 15 5 JOY 2159 4 e 019 pue 150 Y IM 54 Y l uey SIOTETPE IS UO SAY S A PA 190 1 se 215 S O4JUOD enpiAIpui l pue S UOZ Ip u 581504 6une u LUOOL q8euuuueiDoid JO S e SOWWAY WOO adeds Jo onuo Duren aq pinous ainzesadway x SUH S S M U 10 SY
70. a replacement system in existing dwellings should meet the following conditions a the appliance should be one of the types described in Table 8 b the efficiency gross calorific value of the appliance should be not less than the value in Table 8 for that type of appliance the appliance manufacturer s declaration of appliance performance should include the following words The efficiency of this appliance has been measured as specified in insert appropriate entry from Table 8 and the result after conversion to gross using the appropriate factor from Table E4 of SAP 2009 is x The test data from which it has been calculated has been certified by insert name and or identification of Notified Body The efficiency value may be used in the UK Government s Standard Assessment Procedure SAP for energy rating of dwellings Table 8 Minimum appliance efficiencies for gas fires in a combined fire and back boiler unit Minimum efficiency Gross calorific value British Standard designation appliance type Naturalgas LPG Inset live fuel effect 45 46 BS 7977 2 2003 Specification for safety and rational use of energy of domestic gas appliances Combined appliances Gas fire back boiler All types except inset live fuel effect 63 64 BS 7977 2 2003 Specification for safety and rational use of energy of domestic gas appliances Combined appliances Gas fire back boiler 34 Domestic Building Service
71. ar whether the efficiency has been calculated in accordance with SEDBUK 2005 or SEDBUK 2009 If it does not then SEDBUK 2005 must be assumed d the integral boiler should meet the minimum standards for oil fired central heating systems in Tables 9 10 and 11 for system circulation hot water storage system preparation commissioning controls and insulation Section 3 Oil fired space heating and hot water systems 49 3 4 Continually burning oil fired vaporising appliances providing secondary heating or hot water This section provides guidance on the specification of oil fired vaporising appliances providing heating or hot water for dwellings The guidance does not apply to appliances which have been converted from another fuel for example from solid fuel to oil Oil fired vaporising appliances provided as new systems or replacement systems should meet the minimum standards for controls in Table 12 Table 12 Recommended minimum standards for control of continually burning oil fired vaporising appliances New and replacement Supplementary Appliance type systems information a Manually operated The integral manual controls Information about the appliance e g room as provided by appliance use of controls should heater manufacturer be clearly stated in b Electrically operated The integral or remote Hb E modulating appliance thermostatic controls as e g room heater provided or specified by the appliance
72. arbon emissions B3 can be fitted lt must be stressed that large open fires with large free face areas see Note 1 usually have a need for ventilation well in excess of that available in a property built to modern standards of air tightness This Is likely to lead to severe operational problems unless special steps are taken to provide the required air supply The use of such large simple open fires is penalised in the SAP calculations Note 1 The free face area of an open fire is its opening width times its opening height Section 5 Solid fuel heating systems 77 Controls for solid fuel appliances providing secondary heating Wherever possible solid fuel appliances should have thermostatic control these are usually integral to appliances in categories E Fand G Controls should be appropriate to the level of sophistication of the appliance automatic appliances can benefit from advanced controls Provision of fuel storage for solid fuel appliances providing secondary heating The quantity of fuel consumed by secondary heating appliances is likely to be less than 7 tonne per year However it should be stored in a dry and convenient location Smoke control areas The location of the appliance within or without a smoke control area is critical to the process of optimising the choice of appliance and fuel For further information on solid fuel appliances see CE47 Energy Efficiency Best Practice in Housing Domestic
73. atch Section 5 Solid fuel heating systems 65 Supplementary information on solid fuel appliances Minimum efficiencies Minimum efficiencies for solid fuel appliances are published in the HETAS Official guide to approved solid fuel products and services and on the website www hetas co uk Manufacturers efficiency figures may be higher than those indicated and should be used where independently certified against the harmonised European Standards now in place Carbon emission factors Solid fuels include wood in various forms different types of coal and manufactured solid fuels and consequently there is a range of associated CO emission factors These factors are as important as appliance efficiency when selecting a boiler Table 19 shows the CO emission factors for generic types of solid fuel recognised in SAP Table 19 CO emission factors for generic types of solid fuel Solid fuel Solid Fuel CO emission Notes factors kg CO kWwh House Coal 0 301 Traditional British coal It burns with smoky flame Anthracite 0 318 A mineral fuel with high carbon content Burns very cleanly Manufactured smokeless 0 347 Mineral fuel usually made fuel from anthracite Wood logs 0 008 Renewable wood logs either purchased or from own land Wood pellets in bags 0 028 Mechanically compressed sawdust Bulk wood pellets 0 028 As above delivered in bulk Wood chips 0 009 Chipped wood processed
74. ating systems electric boilers serving central heating systems electric warm air systems electric panel heaters electric storage systems including integrated storage direct systems Portable plug in appliances are not covered by building regulations or by this guide 4 2 Electric boilers serving central heating systems Electric boilers serving wet central heating provided as new systems or replacement systems in dwellings should meet the minimum standards for a system circulation system preparation and commissioning in Table 13 b boiler interlock zoning and time control and temperature control of heating and hot water circuits in Table 14 c hotwater storage systems in Table 15 d pipework insulation in Table 16 52 Domestic Building Services Compliance Guide 2010 Edition SUV S S Bune u jeu 1 5 A JOY 2I s uuop Ul JO U UI E J JO 2 900C 6682 58 4 14 DIEDUEIS v SI U NOS JAJEM JO SJBINPAI JLIS 2n0 JOJ 2 J Dulsop azeydsoyd jod sio IqIUu 28 PUL UOISOJIOD PAUIQUIOD SIOPGIYU e3s uul EDILUBY JO sn OU A0 aq UD lp s ulr 900Z 669288 Ul UANIb SW JS S UOISSILULUOD pue o moy UO xupp n6 y MO O 0 q p noAA UOISIAOJA ajqeuoseay abpn s pue ajeds JO UOIEWO y pue UOISO41OD OJ UOD 0 1110 Ade y 0
75. blications which include information on good practice for design and installation over and above the recommended minimum standards in this guide 1 2 Innovative systems It is important to note that this guide covers a range of frequently occurring situations and deals with the most commonly used fixed building services technologies In doing so it neither endorses these methods and technologies nor excludes other more innovative technologies Innovative technologies are not excluded from the compliance process and alternative means of achieving compliance with the functional requirements of building regulations may be possible Where the technology has been the subject of a recognised testing procedure that assesses its energy performance this may be used to indicate that the system is adequately efficient In the event that there is no recognised testing standard suitable calculations or modelling methods may be used to show the carbon performance of the system 6 Domestic Building Services Compliance Guide 2010 Edition 1 3 European Directives Fixed building services products such as boilers circulators and heat pumps shall at the appropriate time comply with all relevant requirements of EU Directives including the Eco design of Energy Using Products EuP Framework Directive 2005 32 EC and Directive 2009 28 EC on the Promotion of the Use of Energy from Renewable Sources Renewable Energy Directive 1 4 Status of guide Building
76. ccordance with the the manufacturer s additive manufacturer s instructions instructions Section 7 Underfloor heating systems 95 Table 31 Recommended minimum standards for construction and control of electric underfloor heating systems Underfloor heating Nevv systems Supplementary information Electric 1 0 a Electric cable underfloor heating Other areas storage Construction low tariff night energy storage should be systems with systems should have a 65 mm assigned as low individual minimum thickness screed for tariff heating room or correct operation cables only programmable b Principal rooms containing 80 subject to heat thermostats floor area should be assigned requirements and low tariff to low tariff heating cables and Bathrooms anticipatory 20 of the floor area should be and separate controls assigned to either direct acting 1 kitchens perimeter heating cables or may have systems such as ceiling or panel direct acting heaters in order to maximise heating cables energy efficiency subject to heat requirements 2 0 a Anticipatory controllers should Anticipatory Controls be installed controlling low controllers tariff input charge with external i e weather temperature sensing and floor compensators temperature sensing reduce night b Programmable room energy storage thermostats with an override as a function feature should be provided for all of external direct acting zones of the syste
77. ce for the loss of performance should be made when sizing the collector area according to the factors indicated in SAP 2009 Appendix H 2 0 a Collectors should be Copies of the full test report should Solar independently certified to comply be made available upon request collector with all required tests for safety 3 0 a The transfer fluid in the collector Primary primary loop should be chosen circuit fluid so as not to deposit limescale sludge ice or other solids that could either restrict circulation or impair the rate of heat transfer within the absorber 4 0 a The electrical input power of Circulation the primary pump in the solar pump system should be less than 50 W power or 2 of peak thermal power of collector whichever is the higher In secondary systems measures to reduce the formation of limescale should be considered so that performance is not significantly affected Section 11 Solar water heating 113 Table 37 Recommended minimum standards for indirect solar water heating continued Solar water New and replacement systems Supplementary information heating 5 0 a heat exchanger between A heat exchanger reduces the Heat a solar primary and secondary possibility of clogging and exchanger system should be sized so that not deposition due to dirt scale or sizing less than 0 1 m or equivalentof similar impurities that could heat exchanger area is provided reduce the sys
78. cuments gt Part F gt Associated documents and b meet the minimum standards for specific fan power heat recovery efficiency and controls in Table 32 98 Domestic Building Services Compliance Guide 2010 Edition Table 32 Recommended minimum standards for mechanical ventilation systems Supplementary New and replacement systems information 1 0 a Mechanical ventilation systems should be Fan power designed to minimise electric fan power Specific fan power SFP should not be worse than i 0 5 WA s for intermittent extract ventilation systems ii 0 7 VV s for continuous extract ventilation systems iii 0 5 VV s for continuous supply ventilation systems iv 1 5 VV s for continuous supply and extract with heat recovery ventilation systems 2 0 a The heat recovery efficiency of balanced Heat mechanical ventilation systems recovery incorporating heat recovery should not be efficiency worse than 70 3 0 a Intermittent mechanical extract ventilation 1 British Standards Controls systems should be operated by local manual BS EN 15232 2007 switches or automatically by a presence Energy sensor performance b Allother mechanical ventilation systems of buildings should have manual or automatic control of Impact of building the boost facility automation controls and building management Section 9 Heat pump systems 99 Section 9 Heat pump systems 9 1 Scope of
79. d and enclosed in protective trunking to limit accidental damage www eurovent certification com Supplementary information British Standards BS EN 14511 2 Air conditioners liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling Test conditions BS EN 14511 4 Air conditioners liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling Requirements Section 11 Solar water heating 111 Section 11 Solar water heating 11 1 Scope of guidance This section provides guidance on the specification of solar water heating for dwellings to meet relevant energy efficiency requirements in building regulations The guidance in this section covers indirect solar systems with a collector area of less than 20 m and solar heated water storage of less than 440 litres It does not cover direct solar systems or systems intended to contribute exclusively to space heating or systems providing heat exclusively to heat swimming pools It should be used in conjunction with the guidance on water heating contained in the fuel based sections of this guide 11 2 Indirect systems Indirect solar heating systems installed as new systems and replacement systems should meet the minimum standards for a collector certification identification and testing collector primary loop transfer fluid circulation pump power heat excha
80. d to confirm the equipment has been correctly installed and to record key safety and operational features b Asaminimum the commissioning certificate should record the following details of the solar system vi vii net or aperture area of solar collector minimum ambient temperature without freeze damage to components location of device and method for controlling over pressure location of the electrical isolating switch type of circulation fluid circulation rate of collector circuit location of device for protecting against overheating of solar heated water Supplementary information A signed commissioning certificate certifying that the equipment is safe legaland fit for its intended purpose should be handed over to the dwelling owner or user as applicable A separate certificate is required to cover the installation and commissioning of the hot water storage vessels and appliances within a solar DHW system A commissioning engineer should be a competent person who can personally testify by signature and date that the equipment has been commissioned 3 0 Documentation a No minimum standard Information concerning the solar DHVVsystem should be provided to the dvvelling ovvner or user as appl cable The documentation should include e user s manual warranty information a recommended maintenance schedule commissioning certificate e
81. d water systems are kept to a minimum If installed in a new dwelling heat pumps should use refrigerants complying with the provisions of EU Directive 2037 2000 Heat pumps should be CE marked in accordance with applicable EU Directives e g the machinery safety low voltage pressure equipment and electromagnetic compatibility directives If summer cooling is provided by the heat pump it is recommended that condensate drainage from the indoor units is provided Section 9 Heat pump systems 101 9 2 Key terms Coefficient of performance CoP is a measure of the efficiency of heat pumps Heating CoP heat output power input CoP CoP x 100 is the heat generator efficiency Seasonal performance factor SPF is the operating performance of an electric heat pump over the season It is the ratio of the heat delivered and the total energy supplied over the season 9 3 Warm water and hot water heat pumps Electrically driven heat pumps used as the heat generator in e g underfloor warm air and medium temperature radiator heating systems should a have a coefficient of performance not less than 2 28 when used for space heating b have a coefficient of performance not less than 2 0 when used for heating domestic hot water have a seasonal performance factor not worse than the minimum required by BS EN 15450 Table C1 for new build and Table C2 for existing build d meet the minimum standards for supply temperature wet syste
82. ded minimum standards for floor insulation and minimising distribution losses in vvet and electric underfloor heating systems continued Underfloor New systems Supplementary heating information 4 0 Underfloor heating distribution boards System design or warm water distribution manifolds to minimise should be located centrally between the distribution rooms being heated thus minimising losses the length of interconnecting services Service pipes carrying hot water to more distant rooms should be insulated or routed through conduits to reduce distribution losses and the risk of overheating the room or floor finish 5 0 Commissioning warm water floor British Standards System heating systems should be carried out BS 7593 2006 commissioning in accordance with BS EN 1264 Part 4 Code of practice and corrosion Even where plastic tubes contain oxygen for treatment of protection gas barriers the control of corrosion in 1 waterin domestic mixed product heating systems must be hot water central Control of addressed carefully heating systems oxidation After testing and flushing with clean mhb y sheuidibe biofilm scale and water the system circulating fluid EE sludge in warm should be treated with a suitable 507 77 or equlvalent vvater heating corrosion inhibitor approved by the tube systems manufacturer and complying with Note should also be BS 7593 2006 or DIN 4725 6 and made of advice in applied strictly in a
83. dy satisfied from the pre heat vessel vi inform the end user of the systems correct function and performance at all times Section 11 Solar water heating 115 Table 37 Recommended minimum standards for indirect solar water heating continued Solar water New and replacement systems Supplementary information heating 7 0 Vented copper hot water storage Vented copper hot water cylinders Solar pre vessels should comply with the should carry clear labelling on the heated heat loss and back up heating product such as a BSI Kitemark water heat exchanger requirements of registered firm status or reference storage BS 1566 1 2002 to an equivalent quality control Unvented hot water storage scheme SEH 77 solo Vented cylinders which are not comply with Ba RINI 229 o copper construction should li be certified by the British be labelled as complying with Board of Ag rement the Water the heat loss and heat exchanger Research Council or other requirements of BS 1566 accredited body as complying with building regulations Due to the higher than normal Primary storage systems should 1 Storage temperatures in primary meet the insulation requirements Stores itis very important that of sections 4 3 1 or 4 3 2 of they are well insulated the Hot Water Association Performance specification for thermal stores 8 0 The ratio of solar heated water Collector area Is measured as Volume storage volu
84. e chimneys may be less than the default values listed within SAP 2009 the use of these more accurate values will reduce SAP values 5 3 Central heating systems using certain types of solid fuel appliances This section provides guidance on the following types of solid fuel appliance used to deliver primary heating as part of a central heating system batch fed open fires with high output boilers appliance types D1 to D4 in Table 18 batch fed and automatic feed room heaters and stoves with boilers appliance type F in Table 18 batch fed cookers with boilers appliance type G2 in Table 18 batch fed independent boilers and automatic feed anthracite wood log wood pellet and wood chip fired independent boilers appliance types J1 to J5 in Table 18 Unless stated otherwise the guidance applies equally to appliances that burn wood wood pellets house coal manufactured smokeless fuels and anthracite For central heating systems with a solid fuel appliance installed as anew system or replacement system in dwellings a the appliance should be from HETAS categories D F G and J in Table 18 and have a minimum efficiency gross calorific value which is not less than the value specified for its category b the ratio of room heat to water heat should be appropriate for the room and total property This will require reference to installation practice guidelines and calculation of room and property heat loss Advice
85. ection 2 Gas fired space heating and hot water systems 21 YbuAdOd si 1Ua UOD v pue DUNO ANSNPU 19354 JOH pue y Aq HEN An ylo ue doun3 e se p v sib l SI yJeUIYIUag 1no e pue yooq paroidde ay pue obo 2 y SN o lq biy aq IM yueuuUD2u g P DIOU oym s lueduuo2 Buunpejnuew JuO uoneuuiojui suu s s 1u uu 2e d u swia sAs M N Buluol SSIWWOJ 079 yam p l seo bp nunuo 2 sus s4s Bune u le nu aM p lli se 104 Buluolssiululo pue uonesedaid wa sAs abei0 s 19 eM JOY 5 5 104 sp4epue3s LUNWIUILU p pu uuuuo3 t lqEL 22 Domestic Building Services Compliance Guide 2010 Edition Table 2 Recommended minimum standards for control of gas fired wet central heating systems Gas fired Replacement wetheating Newsystems systems 1 0 a Boiler based systems should have a boiler a Asfor new Boiler control interlock in which controls are wired systems interlock so that when there is no demand for either space heating or hot water the boiler and pump are switched off b The use of thermostatic radiator valves TRVs alone does not provide interlock 2 0 a Dwellings with a total usable floor areaup a Asfor new Space to 150 m should be divided into
86. ejeg Duana 1 JlOg PYL 4002 ANJAIS WOH UuoJI JJID H SIN EA 600 8035 6002 dVS UI pasinas u q sey uN 104 POYJOW YN IQS oul uonewsojul Aveyuawajddns E002 dVS 40 lQEL Woy Uae aq PINOYS 5 uolssilua QD ay AOQP q pue e ul 5402 BY Bureu aJOjaq 5 y UI pasn 181 o pade das Bulag DIM S y UI p sn jan ay JO 10726 UOISSILUa QD au JO 01721 ayy Aq aq pinous adidas Mau y JO U NIH v ni 1u J JJip e s sn aduel dde bulyesouab ze y 40 wayshs Bulzeay Mau ay e US buns q enua YLM S1 YOO abuel 1 56 Z UONDAS ul p ull p se aq pinous si yoo2 abueL UMAN PaUIQUUOD ae 181 5 100 n sju uu 5e d u bunp u 104 AdualdijJa d lloq y 6002 dVS JO 4740 4 08 UEU ey Woy aq Ae S D PA SS JOU JO p ulj se6 ein eu J 0682 Aua UMOU 10U SI uey ss l JOU aq pinous u nH q o aduel dde Jo Wayshs ay JO 2002 ANAIS 40 6002 ANAIS y Jl Pade des Hulaq d lloq y SOul aMp 104 lnp oold aas p oj uo2 y JO ov piz JUALSSASSE 615 1 19 109 IPUOSP S y uey JAMO Slulod bulsu puoo v o PIN 512 ay l abejUuadJed OM uey 5 q p ulJ p SadUe SLUNDIID qeuond x pue sul 1s s y ul
87. ent systems Natural gas LPG Inset live fuel effect 45 46 All types except inset live fuel effect 63 64 Oil fired space heating and hot water Seasonal efficiency 7 SEDBUK 2009 SEDBUK 2005 Condensing regular boilers 88 90 Condensing combination boilers 86 86 Non condensing regular boilers where permitted 84 85 Non condensing combination boilers 82 82 where permitted Range cooker boilers 80 80 Electric heating systems Efficiency Boilers serving central heating systems N A Warm air systems N A Panel heaters N A Storage systems including integrated storage N A direct systems 2 Allvalues are minimum values and apply to new and existing buildings except where stated 3 The boiler efficiency should meet either the SEDBUK 2009 or SEDBUK 2005 standard If the SEDBUK efficiency in a boiler manufacturer s literature does not state whether it is SEDBUK 2009 or SEDBUK 2005 it should be assumed to be SEDBUK 2005 Efficiency is heat output divided by calorific value of fuel The net calorific value of a fuel excludes the latent heat of water vapour in the exhaust and so is lower than the gross calorific value Efficiency test results and European standards normally use net calorific values SAP 2009 which uses gross values gives factors in Table E4 for converting net efficiency to gross efficiency e g 0 901 for 4 natural gas 0 921 for LPG 0 937 for oil Section 1 Introduction 11 Summary of recommended mi
88. eplacement hot water b In dwellings with a total floor area greater of hot water than 150 m it would be reasonable to cylinders on all provide more than one hot water circuit fully pumped each with separate timing and temperature installations controls This can be achieved by and on gravity i multiple heating zone programmers or circulation ii a single multi channel programmer or installations iii separate timers to each circuit b In exceptional c Non electric hot water controllers should circumstances not be used Also in some circumstances such as such as with thermal stores a zone valve is emergency not appropriate a second pump could be replacement or substituted for the zone valve where the cylinder or installation is of a type that precludes the fitting of wired controls either a wireless or thermomechanical hot water cylinder thermostat would be acceptable Supplementary information More details on control systems can be found in manufacturers literature and on The Association of Controls Manufacturers TACMA website at www heatingcontrols org uk Controls may be provided by any boiler management control system that meets the specified zoning timing and temperature and boiler interlock control requirements When an individual system component such as the boiler or a room thermostat is being replaced it is not necessary to upgrade the whole system However while not essential for compliance w
89. f domestic hot water by other means Where heat pumps are installed in conjunction with heating boilers a reasonable minimum proportion of the annual heat supply from the heat pump would be 45 of the annual space heating demand 5 0 Solar a Nominimum standard but see Supplementary Information Table 26 Recommended minimum standards for control of systems within dwellings for community heating Solar thermal panels can be used as the heat source for a centralised domestic hot water system Supplementary information Community Newsystems heating 1 0 a Dwellings with a total Zoning usable floor area up to 150 m should be divided into at least two zones with independent temperature control one of which is assigned to the living area b Dwellings with a total usable floor area greater than 150 m should be provided with at least two space heating zones each having separate timing and temperature controls In single storey open plan dwellings in which the living area is greater than 70 of the total floor area sub zoning of temperature control is not appropriate 84 Domestic Building Services Compliance Guide 2010 Edition Table 26 Recommended minimum standards for control of systems within dvvellings for community heating continued Community Nevvsystems Supplementary information heating 2 0 a Time control of space Where t
90. f the Building Regulations Section 5 Solid fuel heating systems 75 5 4 Solid fuel appliances for secondary heating Solid fuel appliances in new and existing dwellings that are provided for secondary heating and are not part of a central heating system should have an efficiency gross calorific value not less than specified in Table 18 for that category of appliance Supplementary information on solid fuel appliances providing secondary heating Minimum efficiencies Minimum efficiencies for solid fuel appliances are published in the HETAS Official guide to approved solid fuel products and services and on the website www hetas co uk Manufacturers efficiency figures may be higher than those indicated and should be used where independently certified against the harmonised European Standards now in place Appliance types Appliances which are most suitable for secondary space heating are summarised in Table 23 Table 23 Appliance types Appliance type Notes Open fire with high output boiler when used with link up Small solid fuel room These can be a dedicated wood burner or burn logs in a multi heaters stoves fuel appliance or use pellets They can be matched with a main especially wood fired 1 heating system fired by the same or a different primary fuel or off peak electricity to reduce carbon emissions especially wood fired with or without thermostatic control Many designs can
91. fied Any other use of the contents of this publication would require a copyright licence Please apply for a Click Use Licence for core material at www opsi gov uk click use system online pLogin asp or by writing to the Office of Public Sector Information Information Policy Team Kew Richmond Surrey TW9 4DU e mail Official Publishing nationalarchives gsi gov uk If you require this publication in an alternative format please email alternativeformats communhities gsi gov uk Communities and Local Government Publications Tel 030 0123 1124 Fax 030 0123 1125 Email product communities gsi gov uk Online via the Communities and Local Government website www communities gov uk Contents Section 1 Section 2 Section 3 Section 4 Section 5 Introduction 1 1 1 2 L 1 4 1 6 1 7 1 8 Scope Innovative systems European Directives Status of guide How to use this guide Key terms Replacement of primary heating appliances Energy efficiency standards for compliance with building regulations summary table Gas fired space heating and hot water systems 21 2 2 2 2 4 2 5 2 6 2 7 Scope of guidance Gas fired wet central heating systems Gas fired range cookers with integral central heating boiler Gas fired warm air heating Gas fired fixed independent space heating appliances Gas fired fixed decorative fuel effect fires Gas fires for secondary space heating provided as part of a combined fire and bac
92. g systems in dwellings to meet relevant energy efficiency requirements in building regulations Dwellings should always be designed to avoid or minimise the need for cooling through the appropriate use of solar control secure ventilation and thermal mass 10 2 Air cooled and water cooled air conditioners Cooling systems in new and existing dwellings should a meetthe minimum standards for efficiency in Table 36 and b be controlled to prevent simultaneous heating and cooling of the same space within the dwelling 110 Domestic Building Services Compliance Guide 2010 Edition Table 36 Recommended minimum standards for comfort cooling have an EER greater than 2 4 b Water cooled air conditioners working in cooling mode should have an EER greater than 2 5 c Fixed air conditioners should have an energy efficiency classification equal to or better than Class C in Schedule 3 of the labelling scheme adopted under The Energy Information Household Air Conditioners No 2 Regulations SI 2005 1726 Comfort cooling New and replacement systems Supplementary information 1 0 a Air cooled air conditioners Installation should be carried out Efficiency working in cooling mode should byan installer approved by the manufacturer or supplier The installer should be a competent refrigeration and air conditioning engineer with a valid refrigerant handling certificate Exposed refrigeration pipework should be insulate
93. guidance This section provides guidance on the specification of heat pump systems in dwellings for the provision of space heating and domestic hot water to meet relevant energy efficiency requirements in building regulations A heat pump is a device which takes heat energy from a low temperature source and upgrades it to a higher temperature at which it can be usefully employed for heating or hot water Heat pumps may supply all or part of the heating load The guidance in this section applies to the types of electrically driven heat pump in Table 33 Table 33 Heat pump technologies Warm water and hotwater Warmair Heat pump type systems systems Ground source systems GSHP Ground to Ground to Heat energy is extracted from the ground using closed water air pipe loops buried horizontally in trenches or in vertical boreholes that are connected back to the GSHP The fluid circulating in the closed loop is normally a water propylene glycol antifreeze mixture or accepted equivalent but some direct expansion GSHPs use refrigerant Open loops may also be used to collect water from an aquifer and discharge via a separate aquifer downstream of the water table flow systems of this type normally require permits from the Environment Agency Heat extracted from the ground may be supplied to a dwelling either by a water based heating system ground to water heat pump or by an air distribution system ground to air heat pump
94. he lighting following characteristics a Either i lamp capacity not greater than 100 lamp watts per light fitting and ii all lamps automatically controlled so as to switch off after the area lit by the fitting becomes unoccupied and iii all lamps automatically controlled so as to switch off when daylight is sufficient i lamp efficacy greater than 45 lumens per circuit watt and ii all lamps automatically controlled so as to switch off when daylight is sufficient and iii light fittings controllable manually by occupants 124 Domestic Building Services Compliance Guide 2010 Edition Table 40 Recommended minimum standards for fixed internal and external lighting continued British Standards BS EN 15193 2007 Energy performance of buildings Energy requirements for lighting Other related documents CE80 Domestic lighting innovations Energy Efficiency Best Practice in Housing CE61 Energy efficient lighting guidance for installers and specifiers Energy Saving Trust EP84 Housing for people with sight loss Thomas Pocklington Trust Design Guide IP412 Making the most of your sight Improve the lighting in your home RNIB and Thomas Pocklington Trust Energy Saving Trust best practice standards The Energy Saving Trust sets best practice Energy Saving Recommended ESR standards for lamps that cover not only energy efficiency but also other aspects
95. he control valves work effectively and maintain shut off Section 6 Community heating systems 85 Table 26 Recommended minimum standards for control of systems within dwellings for community heating continued Community Newsystems Supplementary information heating 4 0 a Temperature control of the Where instantaneous heat Temperature domestic hot water service exchangers are used the control control of should be provided by means valve should be selected to maintain domestic of two port control valves steady temperatures lt 5 C fora hot water either electrically operated or range of draw off rates and primary direct acting differential pressures To reduce the incidence of scaling the control valve should shut off the primary flow when there is no domestic hot water draw off A small intermittent flow is an advantage to maintain the temperature vvithin the heat exchanger so as to provide more rapid heat up 5 0 a The maximum design Limitation flovv rate into the dvvelling of maximum heating system should be flow rate limited by suitable control into building and balancing valves to or dvvelling maintain the overall balance in the netvvork and to avoid excessive pumping energy 86 Domestic Building Services Compliance Guide 2010 Edition Table 27 Recommended minimum standards for domestic hot water production storage and water treatment heat meters and commissioning for community heat
96. he dwelling and the external heat exchanger should be insulated by following TIMSA guidance f For ground to air and water to air systems constant vvater flovv should be maintained through the heat pump VVarmair Supplementary heat pumps New and replacement systems information 1 0 a Minimum clearances adjacent to Installation should be carried Installation all airflow paths as recommended out byan installer approved by the manufacturer Installation that requires access to the refrigeration circuit or the connection of split systems should be carried out by acompetent refrigeration and air conditioning engineer holding a refrigerant handling certificate and preferably an Engineering Services Skillcard TIMSA HVAC guidance for achieving compliance with Part L of the Building Regulations Section 9 Heat pump systems 107 Table 35 Recommended minimum standards for warm air heat pumps ground to air water to air and air to air systems continued Warm air Supplementary heat pumps Newand replacement systems information 2 0 a Heat pump unit controls should Controls include vi vii viii control of room air temperature if not provided externally control of outdoor fan operation for air to air units defrost control of external airside heat exchanger for air to air systems control for secondary heating if fitted on air to air systems control of
97. he hot water is produced Time control heating should be provided instantaneously such as with a plate of space by heat exchanger time control is only heating i a full programmer required for space heating zones two or more separate Time control of domestic hot timers providing timing water heating using a cylinder control to each zone or is not considered essential for ii programmable room community heating and could be thermostat s to the a disadvantage with CHP based heating circuit s systems increasing the morning b For dwellings with a total peak demand and hence causing usable floor area greater more use of the boiler than than 150 m time control for necessary the separate space heating zones can be achieved by i multiple heating zone programmers or li a single multi channel programmer 3 0 a Separate temperature Control valves and TRVs should be Temperature control of zones within the two port type to reduce flow rates control dwelling should be provided under part load of space using Differential pressures across control heating i room thermostats or valves and TRVs should be limited to programmable room thermostats in all zones a room thermostat or programmable room thermostat in the main zone and individual radiator controls such as thermostatic radiator valves TRVs on all radiators in the other zones or iii a combination of i and ii above ensure that t
98. heat pumps New and replacement systems information 4 0 a Heat pumpunit controls should Controls include i control of water pump operation internal and external as appropriate ii control of water temperature for the distribution system ili control of outdoor fan operation for air to vvater units iv defrost control of external airside heat exchanger for air to water systems v protection for water flow failure vi protection for high water temperature protection for high refrigerant pressure vill protection for air flow failure on air to water units b External controls should include i room thermostat to regulate the space temperature and interlocked with the heat pump unit operation ii timer to optimise operation of the heat pump Vil 106 Domestic Building Services Compliance Guide 2010 Edition Table 35 Recommended minimum standards for warm air heat pumps ground to air water to air and air to air systems by the manufacturer should be maintained b Pipe sizes should be in accordance with the manufacturer s recommendations c The refrigerant pipework on split systems should be insulated in line with the manufacturer s recommendations d If summer cooling is provided by the heat pump provision should be made for condensate drainage from the indoor terminal units e For ground to air and water to air systems all external pipework between t
99. heating appliances which are provided as the secondary heat source should meet the following conditions a in nevv dwellings the appliance efficiency gross calorific value should be not less than 63 per cent 70 net 32 Domestic Building Services Compliance Guide 2010 Edition b in existing dwellings the appliance efficiency gross calorific value should be not less than 45 per cent 50 net the appliance manufacturer s declaration of appliance performance should include the following words The efficiency of this appliance has been measured as specified in insert appropriate entry from Table 7 and the result after conversion to gross using the appropriate factor from Table E4 of SAP 2009 is x The test data has been certified by insert name and or identification of Notified Body The efficiency value may be used in the UK Government s Standard Assessment Procedure SAP for energy rating of dwellings Table 7 Acceptable types of natural gas and LPG fired fixed independent appliances for secondary space heating BS EN 1266 2002 Independent gas fired convection heaters incorporating a fan to assist transportation of combustion air and or flue gases BS 7977 1 2002 Specification for safety and rational use of energy of domestic gas appliances Radiant convectors BS EN 613 2001 Independent gas fired convection heaters BS EN 13278 2003 Open fronted gas fired independent space heaters Flueless
100. heating by solid fuel Boiler systems Guidance and standards EN 12809 2001 A1 2004 AC 2006 2007 Residential Independent boilers fired by solid fuel Nominal output up to 50k W Requirements and test methods EN 12815 2001 A1 2004 2006 2007 Residential cookers fired by solid fuel Requirements and test methods EN 13229 2001 A1 2003 A2 2004 AC 2006 2007 Inset appliances including open fires fired by solid fuel Requirements and test methods EN 13240 2001 A2 2004 AC2006 2007 Room heaters fired by solid fuel Requirements and test methods EN 15250 2007 Slow heat release appliances fired by solid fuel Requirements and test methods EN 15544 One off tiled mortared stoves Calculation method EN 14785 2006 Residential space heating appliances fired by wood pellets Solid biofuels quality standards CEN TS 14588 2004 CEN TS 14774 1 2004 CEN TS 14774 2 2004 CEN TS 14774 3 2004 5 14775 2004 CEN TS 14778 1 2005 CEN TS 14778 2 2005 CEN TS 14779 2005 CENTS 14780 2005 CEN TS 14918 2005 CEN TS 14961 2005 CEN TS 15103 2005 CEN TS 15148 2005 CEN TS 15149 1 2006 CEN TS 15149 2 2006 CEN TS 15150 2005 CENTS 15210 1 2005 CEN TS 15234 2006 CEN TS 15289 2006 CEN TS 15290 2006 CEN TS 15296 2006 78 Domestic Building Services Compliance Guide 2010 Edition Section 6 Community heating systems 6 1 Scope of guidance This section provides guidance on the specif
101. iance Guide 2010 Edition d Buisu puo2 uou y JO q AeW S4 JIOQ YIIYM UI S9DUe SUINDIID lpuond x y bulusilqe s 104 panoidde ay NO s s S UI AAD 10 DO JUBLUSSASSE UOhP E sul 49 10 HUISUBPUOD AY PIND DID 94L 4002 ANAS 94 o p uunsse aq pinoys gooc 8035 40 6002 ANACAS 2 4BYJOYM 3424S JOU s op ANJA 5 JBINIDE NUCU JA IOG E ul AUAIDIJ2 YNIGIS 2424 sBulJJgAp JO B UOISSILUA DIXOID UOGIED y 2 1 600Z dee Ag pasn ase Jey SIA IOG 10 S IDU DIJJ JOY ol AJ uuuuns pue JA UIM 5 YIM 4243260 104 Sou WOD JNGP S MMM qe asegejzeg OU DLH4 19 109 PYL 4002 8039 1104 1UoJI JJID He 5 6002 8035 6007 6002475 021 qel 4 Uae aq PINOYS S102 01551 QD ql eAoge q pue p ul S DaYD y Hue AH S y UI pasn 181 o p 2e d u Bulag 5 y UI p sn jan ay JO 10726 UOISSILUa 702 au JO 01721 v Aq aq pynoys adidas Mau JU JO U NIH v ni JUDAS e s sn aduel dde bulyesouab ze y Jo wayshs Bulzeay Mau ay e US Jo n sju uu 5e d u 6002 dVS JO 4740 ey Woy Uae aq Ae S D PA UMOU 1Ou SI o aduel dde 10 l s S Y JO y JI p 2e d i Bui q 2 5 p oj uo2 y JO Ou piJJ Ieuose s y ueu1 JAMO
102. ication of community heating systems for dwellings to meet relevant energy efficiency requirements in building regulations A community heating system is one that supplies heat to a number of dwellings from a common heat source A system may heat a small block of flats or a large number of buildings The guidance in this section applies to systems that supply 15 or more dwellings from a central boiler or from a low carbon source such as combined heat and power CHP biofuels heat pumps and solar panels e distribute heat from the central source using a wet radiator system although warm air heating and underfloor heating systems may also be used 6 2 New and existing community heating schemes The central heat source should comply with the requirements in the Non domestic building services compliance guide except where specified in this section Guidance is provided for two scenarios connecting dwellings to anew community heating scheme connecting dwellings to an existing community heating scheme Connecting dwellings to anew community heating scheme New community heating systems for both new and existing dwellings should meet the minimum standards for a energy efficiency in Table 24 b low carbon heat sources in Table 25 c system control in Table 26 Section 6 Community heating systems 79 d hot water production storage and treatment heat metering and commissioning e in Table 27 insulation of pipe
103. idance for achieving compliance with Part L of the Building Regulations Section 6 Community heating systems 89 Table 28 Recommended minimum standards for insulation of internal and external pipevvork for community heating systems continued Standards for insulation of external distribution Supplementary information pipework a Community heating pipework should be Community heating pipework typically uses insulated to the standards defined in EN 253 pre insulated buried pipe systems Minimum for pre insulated pipes or to an equivalent insulation thicknesses are defined in European performance for conventionally insulated pipes standards Where pipework is run above ground the pipe insulation performance should be at least as high as that used in the buried part of the system Enhanced insulation standards should be evaluated where community heating is supplied only from fossil fuelled boilers or where flow temperatures over 100 C are being used Designing for minimum heat losses Heat losses can be reduced by optimising operating temperatures in conjunction with the need to minimise pumping energy Variable volume control systems will assist in maintaining low return temperatures Whilst some bypasses may be needed to maintain the system in a hot condition ready to meet the demand these should be controlled to the minimum flow needed The use of temperature controlled bypass valves where the bypass
104. ing and storage control principles and be designed to maintain low return temperatures in the primary community heating circuit Community New systems Supplementary information heating 1 0 a The hot water system Hot water can be produced in four DHW should be controlled ways in community heating systems production using variable volume in individual dwellings using indirect storage cylinders e in individual dwellings using instantaneous plate heat exchangers e centrally using storage calorifiers with either an indirect coil or an external plate heat exchanger e centrally using an instantaneous plate heat exchanger e In selecting the system consideration should be given to e the impact on return temperatures in the community heating system e the impact on flow rates in the community heating system the impact on heat demand profiles and compatibility vvith the heat source e standing losses from storage cylinders calorifiers and the impact on energy use e the quality of service provided in terms of flow rate and temperature control the advantages of having local storage in terms of security of supply Where the network is extensive and hot water production is centralised a two stage water heating system can be used to deliver low return temperatures In this design the return water from the space heating circuit is used to pre heat the cold feed to the domestic hot water
105. ing compliance with Part L of the Building Regulations 60 Domestic Building Services Compliance Guide 2010 Edition 4 3 Electric heating systems other than electric boilers for central heating This section provides guidance on the following types of fixed electric heating systems electric warm air systems electric panel heaters e electric storage systems including integrated storage direct systems Portable plug in appliances are not covered by this guide Fixed electric heating systems other than electric boilers provided as new systems and replacement systems should meet the minimum standards for time and temperature control in Table 17 Table 17 Recommended minimum standards for control of primary and secondary electric heating systems other than vvith electric boilers Section 4 Electric heating systems 61 Electric heating Supplementary systems Nevv and replacement systems information Warmair 1 0 a Time switch programmer and systems Time and room thermostat or temperature b programmable room thermostat control either integral to the heater or external 2 0 a Dwellings with a total usable Zone floor area up to 150 m should control be divided into at least tvvo space heating zonesvvith independent temperature control one of vvhich is assigned to the living area b Dwellings with a total usable floor area greater than 150 m should be provided with at
106. ings BSRIA BG 2 2007 CHP for existing buildings Guidance on design and installation 10 Energy Saving Trust CE54 Whole house boiler sizing method for houses and flats This is an interactive calculator available from the Energy Saving Trust at www energysavingtrust org uk housingbuildings publications The design heat loss in kW is the basic design heat loss in box U from the 2010 edition 11 Method to evaluate the annual energy performance of micro cogeneration heating systems in dwellings APM SAP 2009 revision DECC Available from www bre co uk sap2009 12 BSI PAS 67 2008 Laboratory tests to determine the heating and electrical performance of heat led micro cogeneration packages primarily intended for heating dwellings Section 14 Heating system circulators 127 Section 14 Heating system circulators 14 1 Scope of guidance This section provides guidance on the specification of stand alone glandless heating system circulators to meet relevant energy efficiency requirements in building regulations The guidance does not apply to circulators supplied as integrated units within the casing of boilers 14 2 Circulators Heating system circulators provided as part of new systems or replacement systems in dwellings should meet the minimum standards for energy efficiency in Table 41 Table 41 Recommended minimum standards for stand alone glandless heating system circulators New and replacement systems S
107. ith building regulations in the case of a boiler replacement because the system has to be drained down it would be good practice to install thermostatic radiator valves or equivalent on all radiators other than in the room with the main thermostat provided the radiators are suitable and pipework does not need to be altered Section 2 Gas fired space heating and hot water systems 25 Table 3 Recommended minimum standards for insulation of pipework in gas fired wet central heating systems New systems a Pipes should be insulated to comply with the maximum permissible heat loss indicated in the Supplementary Information column and labelled accordingly as follows Primary circulation pipes for heating and hot water circuits should be insulated wherever they pass outside the heated living space or through voids which communicate with and are ventilated from unheated spaces Primary circulation pipes for domestic hot water circuits should be insulated throughout their length subject only to practical constraints imposed by the need to penetrate joists and other structural elements All pipes connected to hot water storage Supplementary information Insulation of pipework in unheated areas Extra provision may need to be made to protect central heating and hot water pipework in unheated areas against freezing Guidance Is available in e BS 5422 2009 Method for specifying thermal insulating materials for
108. k boiler unit Oil fired space heating and hot water systems 3 1 3 2 3 3 3 4 3 5 Scope of guidance Oil fired wet central heating systems Oil fired range cookers with integral central heating boilers Continually burning oil fired vaporising appliances providing secondary heating or hot water Oil fired fixed independent space heating appliances Electric heating systems 4 1 4 2 4 3 Scope of guidance Electric boilers serving central heating systems Electric heating systems other than electric boilers for central heating Solid fuel heating systems 5 1 5 2 5 3 5 4 Scope of guidance Solid fuel appliances for primary heating Central heating systems using certain types of solid fuel appliances Solid fuel appliances for secondary heating Contents 3 CO NN O On U1 U1 U 14 14 14 26 26 30 32 33 35 35 35 48 49 49 51 51 51 60 63 63 63 66 75 4 Domestic Building Services Compliance Guide 2010 Edition Section 6 Section 7 Section 8 Section 9 Section 10 Section 11 Section 12 Section 13 Section 14 Community heating systems 6 1 Scope of guidance 6 2 New and existing community heating schemes Underfloor heating systems 7 1 Scope of guidance 7 2 Underfloor heating in new dwellings Mechanical ventilation systems 8 1 Scope of guidance 8 2 Energy efficiency of mechanical ventilation systems Heat pump systems 9 1 Scope of guidance 9 2 Key terms
109. m temperature with air and floor temperature sensing capabilities to be used individually or combined Electric cable direct acting non storage systems with individual room timer or thermostat control in screeded floors 3 0 Construction a Direct acting electric underfloor heating cables should be installed within screeds of thickness not exceeding 60 mm b All heated floors should be insulated in accordance with Table 30 4 0 Controls a Programmable room thermostats with a manual override feature for all heating zones with air or floor temperature sensing capabilities should be used individually or combined Table 31 Recommended minimum standards for construction and control of 96 Domestic Building Services Compliance Guide 2010 Edition electric underfloor heating systems continued Underfloor heating New systems Supplementary information Electriccable 5 0 a Direct acting electric underfloor direct acting Construction heating cables installed below systems with floor boards in voids between individual floor joists should be insulated in room timer or accordance with Table 30 thermostat 6 0 a Programmable room 5 r Controls thermostats vvith a manual timber floors override feature should be provided to control space temperature and limit floor void temperature for safety and comfort in each area Under tile 7 0 a Direct acting electric underflo
110. m radiator efficiency installation and commissioning hot water and controls in Table 34 for warm water and hot water heat pumps e meet the minimum standards for installation and controls in Table 35 for warm air heat pumps 8 CoP to be measured according to procedures in BS EN 14511 4 2007 102 Domestic Building Services Compliance Guide 2010 Edition Table 34 Recommended minimum standards for vvarm vvater and hotvvater heat pumps ground to vvater vvater to vvater and air to vvater systems VVarm and hot water Supplementary heat pumps New and replacement systems information 1 0 Underfloor heating Section 7 of this guide on Supply a Supply water temperatures to the underfloor heating water underfloor heating system should temperatures be in the range 30 C to 40 C for and new buildings and 30 C to 55 C efficiency for existing systems Radiators a High efficiency radiators with high water volume should be utilised b Supply water temperature to the radiators should be in the range 40 C to 55 C Fan coil units a Supply water temperature to the fan coil units should be in the range 35 C to 45 C Space heating may be sized to meet all or part of the space heating load Secondary heating will be required if the heat pump Is sized to meet part of the space heating load Fan coil units may be utilised for heating only or for winter heating and summer cooling Section
111. me to collector area__ effective aperture or net absorber of solar should be as follows area whichever is smaller pre heated i The dedicated solar storage A separate pre heat storage vessel voluma Me should be atleast should be considered wherever 25 litres or equivalent heat l possible capacity per net square metre of the solar collector absorber area ii Alternatively Vs should be a volume or equivalent heat capacity which is equivalent to at least 80 of the daily hot water demand Vd as defined by SAP 2009 116 Domestic Building Services Compliance Guide 2010 Edition Table 37 Recommended minimum standards for indirect solar water heating continued Solar water New and replacement systems Supplementary information heating 9 0 New build Parts of BS 7593 2006 Code of System a Solar primary circuits should practice for treatment of water preparation be thoroughly cleaned with an in domestic hot water central and water appropriate cleaner and flushed heating systems may assist in treatment through with solar heat transfer flushing and cleaning procedures fluid before filling with the solar heat transfer fluid b Systems should be filled with a heat transfer fluid containing a volatile inhibitor package capable of protecting the system from frost and corrosion at all operating temperatures c Installers should refer to the equipment manufacturer s installation instructions for appropria
112. mum efficiencies Category Appliance description Minimum efficiency Feed gross calorific value B1 Simple open fire Inset 37 Batch B2 Open fire freestanding convector 47 Batch B3 Open fire inset convector 45 mineral fuels 43 wood fuels C1 2 Open fire and boiler inset or 50 Batch freestanding D1 2 3 Open fire high output boiler 63 Batch trapezium and rectangular grates D4 Open fire high output boiler 63 Batch rectangle E 1 Dry room heater often known as 65 Batch dry stove Automatic E2 Dry room heater logs only 65 Batch E3 Dry room heater multi fuel 65 Batch E4 Dry room heater pellet stove 65 part load Auto 70 nominal load F Room heater with boiler 67 mineral fuels and Batch logs Automatic 70 wood pellets part load 75 wood pellets nominal load G1 Cooker without boiler not 65 mineral fuels Batch exceeding 3 5 kW 55 wood fuels G2 Cooker with heating boiler 65 mineral fuels Batch exceeding 3 5 kW 60 wood fuels J2 Independent boiler batch fed 75 Batch wood logs only J3 Independent boiler batch fed 65 mineral fuels Batch multi fuel 75 wood logs J4 Independent boiler anthracite 70 up to 20 5 kW Automatic 75 above 20 5 kW J5 Independent boiler 75 nominal load Automatic wood pellets chips 70 part load Slow heat release appliances 65 Batch One off tiled mortared stoves 70 B
113. n Low or zero carbon energy sources strategic guide ODPM 2006 3 0 Combined heat and power CHP a Where CHP is used in conjunction with boiler plant the control system should ensure that as far as is practicable the CHP plant operates as the lead heat source CHP capacity should be optimised to meet the required economic and environmental objectives A reasonable minimum proportion of the annual heat supply from CHP would be 45 of the annual heat demand space domestic and hot water heating To maximise the use of CHP heat over the year consideration should be given to the use of thermal storage to meet peaks especially in the early morning period The procedure given in SAP 2009 should be used to calculate the carbon emissions from CHP systems Section 6 Community heating systems 83 Table 25 Recommended minimum standards for design of low carbon heat sources where these are included in community heating systems continued Community heating New systems Supplementary information 4 0 Heat Pumps a Nominimum standard but see Supplementary Information Heat pumps can be used as a heat source for community heating systems Selection of operating temperatures to optimise the efficiency of the community heating system and achieve high COPs is important if carbon emissions are to be reduced This may involve the use of underfloor heating and the provision o
114. n accordance with BS 5864 2004 and maintenance of gas fired ducted air heaters of rated input not exceeding 70 kW net second and third family gases Specification BS 5422 2009 Method for specifying thermal insulating materials for pipes tanks vessels ductvvork and equlpment operating vvithin the temperature range of 40 C to 700 C Section 2 Gas fired space heating and hot water systems 29 Table 5a Recommended minimum standards for control of gas fired warm air heating without water heating Gas fired warm air heating without hot water New and replacement systems 1 0 a Controls external to heater time switch programmer and room Time and thermostat or programmable room thermostat or temperature b controls integrated in the heater time switch programmer and control room temperature sensor linked to heater firing and fan speed control 2 0 a New dwellings with a total usable floor area up to 150 m should Zoning be divided into at least two space heating zones with independent temperature controls one of which is assigned to the living area b New dwellings with a total usable floor area greater than 150 m should be provided with at least two space heating zones each having separate timing and temperature controls Timing of the separate space heating zones can be achieved by i multiple heating zone programmers or ii a single multi channel programmer or ili
115. n the UK Government s Standard Assessment Procedure SAP for energy rating of dwellings b Each appliance should be capable either independently or in conjunction with room thermostats or other suitable temperature sensing devices of controlling the temperatures independently in areas that have different heating needs e g separate sleeping and living areas Oil fired fixed independent appliances for secondary heating Oil fired fixed independent space heating appliances in new dwellings which are provided as the secondary heat source should have a minimum efficiency gross calorific value of not less than 60 per cent Supplementary information Further guidance on oil fired heating systems is available in the following publications Energy Efficiency Best Practice in Housing publications see www oftec org CE29 Domestic heating by oil boiler systems CE51 Central heating system specifications CHeSS CE54 Whole house boiler sizing method for houses and flats OFTEC Technical Books 2 3 4 and 5 see www oftec org BS EN 12828 BS 5410 Part 1 Section 4 Electric heating systems 51 Section 4 Electric heating systems This section provides guidance on the specification of fixed electric heating systems for dwellings to meet relevant energy efficiency requirements in building regulations 4 1 Scope of guidance The guidance given in this section covers the following types of fixed electric he
116. ndards for fixed internal and external lighting Lighting New and replacement systems Supplementary information Fixed n the areas affected by the building Light fittings may be either internal work provide low energy light e dedicated fittings which will lighting fittings fixed lights or lighting units have separate control gear and that number not less than three per will take only low energy lamps four of all the light fittings in the e g pin based fluorescent or main dwelling spaces of those areas compact fluorescent lamps or excluding infrequently accessed e standard fittings supplied spaces used for storage such as with low energy lamps with cupboards and wardrobes integrated control gear e g Low energy light fittings should bayonet or Edison screw base have lamps with a luminous efficacy compact fluorescent lamps greater than 45 lamp lumens per Light fittings with GLS tungsten circuit watt and a total output filament lamps or tungsten greater than 400 lamp lumens halogen lamps would not meet the c Light fittings whose supplied standard power is less than 5 circuit watts are The Energy Saving Trust publication excluded from the overall count of GIL 20 Low energy domestic the total number of light fittings lighting gives guidance on identifying suitable locations for fixed energy efficient lighting Fixed Where fixed external lighting is external installed provide light fittings with t
117. ne u Jan pilos Bune u jenu l n pijos 104 Buiuoissitutuo2 pue uoneued id ul s4s 5 19 eM 1ou aHe10 s f n l 3s4S 10 5 LUNWIUILU p pu uuuuo3 tu 0Z lqEL Section 5 Solid fuel heating systems 69 SI P U JBJEM DE10 8 pazeay uone2Ijip d Addns IeM 682 1 NIS s sodundoI s uuop 104 SUN UO CUIQUIOD DE10 S JAJEM JOY J9AAOD UOnP LD 186 S6LESY SPOYJOW 15 pue s u uv linb y ss pulyo Jado pajuan u do sasodind SI PUIO Papui ddo 2002 99S Sg Sp4epue s USDLg JNBO 4 25 V00U Mmm WO L JOJ lQP IPAP 51 UORPOL D S DE 10 S V AH EYL p nsSul JJ AA Be S 10 1eu JUCLIOALUI SI A s n eJ duu abeso s uey v JO asnedeg ALES P Je 1 2 aq o SI BINJe BAWA9 j no JOY DSaWOGg uu s s f n pijos y 10 S4 2 y UOISJOUULU LDD V PIA 1291010 1501 lqissod pue 10 eM JOY uJnss ud SUIELU osje v p sn ase sapul abesO S Pa UaAUN H U A nq spoM d Jaquun s pajyesauab 104 BY 5 O SI ASN JY 10 5 1 Y y n pilos JO uone le sul y ul eyd o e aAeY UPD asou S 403S JOY UPullid Azeyu ul yddn
118. ng service Standard Solar water heating Circulation pump power lt 50W lt 2 of peak thermal power of collector Fixed lighting Lighting efficacy Internal light fittings 75 45 lamp lumens per circuit watt External lighting automatic presence and daylight control lamp capacity lt 100 lamp watts per light fitting External lighting manual switching and automatic daylight control 45 lumens per circuit watt Micro CHP Heating plant emission rate HPER See Section 13 3 a Heating system circulators Europump Labelling Scheme rating Stand alone glandless heating system circulators AtoG 14 Domestic Building Services Compliance Guide 2010 Edition Section 2 Gas fired space heating and hot water systems 2 1 Scope of guidance This section provides guidance on the specification of gas fired space heating and hot water systems in dwellings to meet relevant energy efficiency requirements in building regulations The guidance applies to systems fuelled by natural gas and liquid petroleum gas LPG and covers e wet central heating systems e range cookers with integral central heating boilers warm air heating systems e fixed independent space heating devices 2 2 Gas fired wet central heating systems Gas fired wet central heating systems for dwellings should meet the minimum standards for a boiler efficiency system circula
119. nger sizing system control solar pre heated water storage and system preparation in Table 37 b system labelling and commissioning in Table 38 c insulating pipes in a solar primary system in Table 39 Supplementary information When work is carried out on an existing indirect solar hot water system it is recommended that the system controls and insulation should be upgraded in line with the standards for new and replacement systems 9 The Microgeneration Certification Scheme Standard MIS3001 Issue 1 7 January 2010 gives guidance on solar heating systems with a dedicated solar volume that is below the minimum recommended for indirect systems SAP 2009 Appendix H sets out rules for estimating the annual energy performance of solar heating systems including direct systems 112 Domestic Building Services Compliance Guide 2010 Edition Table 37 Recommended minimum standards for indirect solar water heating certification and thermal performance and for reporting and identification according to BS EN 12975 Solar water New and replacement systems Supplementary information heating 1 0 a Nominimum provision Solar collectors should be sited Allowance in unshaded locations wherever for collector possible Where this is unavoidable shading or in cases of significant or heavy shading or significant variance to the optimum orientation and tilt i e normal pitch roofs facing between SE and SW then an allowan
120. nimum energy efficiency standards for building services continued Building service Standard Solid fuel heating systems Efficiency gross Feed B1 Simple open fire Inset 37 Batch B2 Open fire freestanding convector 47 Batch B3 Open fire inset convector 4596 mineral fuels 43 wood fuels C1 C2 Open fire and boiler inset or 50 Batch freestanding D1 D2 D3 Open fire high output boiler 63 Batch trapezium and rectangular grates D4 Open fire high output boiler 63 Batch rectangle E1 Dry room heater often known as 65 Batch dry stove Automatic E2 Dry room heater logs only 65 Batch E3 Dry room heater multi fuel 65 Batch E4 Dry room heater pellet stove 65 part load Auto 70 nominal load F Room heater with boiler 67 mineral fuels Batch and logs Automatic 70 wood pellets part load 75 wood pellets nominal load G1 Cooker without boiler not 65 mineral fuels Batch exceeding 3 5 kW 55 wood fuels G2 Cooker with heating boiler 65 mineral fuels Batch exceeding 3 5 kW 60 wood fuels J2 Independent boiler batch fed 75 Batch wood logs only J3 Independent boiler batch fed 65 mineral fuels Batch multi fuel 75 wood logs J4 Independent boiler anthracite 70 up to 20 5 kW Automatic 75 above 20 5 kW J5 Independent boiler wood pellets 75 nominal load Automatic chips 70 part load Slow heat release appliances 65 Batch
121. nstallation should be carried out by an installer approved by the manufacturer If during installation access to the refrigeration circuit is needed a competent refrigeration and air conditioning engineer with a valid refrigerant handling certificate or an Engineering Services Skillcard should carry out the work Exposed refrigeration pipework should be insulated and enclosed in protective trunking to limit accidental damage Installation of the dwelling s water distribution system should be undertaken by a competent central heating specialist 104 Domestic Building Services Compliance Guide 2010 Edition Table 34 Recommended minimum standards for vvarm vvater and hotvvater heat pumps ground to vvater vvater to vvater and air to vvater systems continued VVarm and hotvvater Supplementary heat pumps New and replacement systems information 2 0 g The internal vvater distribution Guidance and standards Installation circuit should contain an inhibitor TIMSA HVAC guidance for and and may be protected by an anti achieving compliance with commiss freeze solution as recommended Part L of the Building ioning by the heat pump manufacturer 1 Regulations continued h Ground loops should be filled BS EN 378 Specification for with a heat transfer fluid Installers refrigerating systems and heat should also refer to the equipment pumps manufacturer S installation TR30
122. of dwellings return temperatures lower than 40 C should be achieved 2 0 Controls for boilers should Setting occupation times is not Controlling meet the requirements of generally possible for a group of the the Non domestic building dwellings and so optimum start sequencing services compliance guide controls are not a requirement and firing of except optimum start is boilers not required Section 6 Community heating systems 81 Table 24 Recommended minimum standards for the design of nevv community heating systems to maximise efficiency of heat generation and minimise energy use by pumps continued Community Nevvsystems Supplementary information heating 3 0 For new community Pumping energy can be minimised by Minimising heating systems the optimising operating temperatures energy use design temperature and pipe sizes to reduce installed by pumps difference for the pump power community heating primary circuit should be greater than 20 C Variable volume control systems should be used to reduce the volume of water and the pressure difference required from the pumps under part load To take full advantage of variable volume systems variable soeed pumps should be installed and controlled to deliver the required pressure difference to suit the load Further guidance is provided in BSRIA Application Guide AG 16 2002 Variable flow water systems design installation and c
123. of quality including colour rendering warm up time product life and power factor It is advisable to install only ESR low energy lamps in dwellings Section 13 Micro combined heat and power packages 125 Section 13 Micro combined heat and power packages 13 1 Scope of guidance This section provides guidance on the specification of micro combined heat and power micro CHP packages for dwellings to meet relevant energy efficiency requirements in building regulations The guidance covers micro CHP systems with an electrical output less than 5 kWe which are heat led e capable of exporting electricity to the grid and controlled in such a way as to avoid heat dumping 13 2 Key terms Heating plant emission rate HPER is the annual CO emissions from fuel and power consumed by the heating plant offset by the emissions saved as a result of any electricity generated by the heating plant divided by the heat output over a year It is measured in units of kg of CO per kWh To calculate HPER it is necessary to know the plant size ratio Note The HPER includes any auxiliary space and water heating that may be necessary i e it represents the performance of all heating plant needed to provide space and water heating service to the building assuming a standard demand pattern Plant size ratio PSR is defined as the nominal heat output of the heating plant divided by the design heat loss the average heat loss of the b
124. ommissioning guidance Table 25 Recommended minimum standards for design of low carbon heat sources where these are included in community heating systems Community heating 1 0 Low carbon heat sources New systems No minimum standard but see Supplementary Information Supplementary information Community heating systems can be designed to use low carbon heat sources to meet all or part of the heat demand which may enable some relaxation of the U values that would otherwise be required 82 Domestic Building Services Compliance Guide 2010 Edition Table 25 Recommended minimum standards for design of low carbon heat sources vvhere these are induded in community heating systems continued Community heating Nevv systems Supplementary information 2 0 Biofuels a No minimum standard but see supplementary information Biofuels can be used to provide heat from boiler systems or as a fuel for CHP systems Consideration should be given to operation and maintenance of the plant to ensure a long life and to prevent a later replacement by a conventional fuel system Where a biofuel boiler is to be used in conjunction with conventionally fuelled heating boilers or electric heating a reasonable minimum proportion of the annual heat supply from biofuels would be 45 of the annual heat demand space domestic hot water and process heating Further guidance is provided i
125. ompliance Guide 2010 Edition Section Underfloor heating systems 7 1 Scope of guidance This section provides guidance on the specification of underfloor heating systems in new dwellings to meet relevant energy efficiency requirements in building regulations The guidance covers systems that use both hot water pipes and electric heating elements as the underfloor heat source 7 2 Underfloor heating in new dwellings Underfloor heating in new dwellings should meet the minimum standards for a system control and safe operating temperatures in Table 29 b floor insulation and system design to minimise distribution losses in Table 30 and c inthe case of electric underfloor heating systems in new dwellings construction and controls in Table 31 Section 7 Underfloor heating systems 91 Table 29 Recommended minimum standards for control of vvet and electric underfloor heating systems Underfloor Nevv systems Supplementary heating information 1 0 a All underfloor heating systems vvhether System vvarm vvater or electrical types should be temperature fitted with controls to ensure safe system controls operating temperatures Wet and i A separate flow temperature high electric limit thermostat is required for warm underfloor water systems connected to any high heating water temperature heat supply i e systems operating at more than 60 C li Mixed systems containing both radiators and floor heating
126. only to BRE Report No 262 Thermal insulation practical constraints imposed by the need avoiding risks 2002 Edition to penetrate joists and other structural Where insulation is labelled as complying with this guide it must not exceed the following heat loss levels elements iii All pipes connected to hot water storage vessels including the vent pipe should be insulated for at least 1 metre from their points of connection to the cylinder or they should be insulated up to the point where they become concealed iv If secondary circulation is used all pipes kept hot by that circulation should be insulated Pipe outside Maximum diameter heat loss Replacement systems 8 mm 7 06 W m a Whenever a boiler or hot water storage vessel 10mm 7 23 Wim is replaced in an existing system any pipes that 12mm 7 35 W m are exposed as part of the work or are otherwise Eeer 7 89 W m accessible should be insulated as recommended 22 mm 9 12 W m above or to some lesser standard where E eee practical constraints dictate 28 mm 10 07 Wim 35mm 11 08 Wim 42mm 12 19W m 54mm 14 12 W m ln assessing the thickness of insulation required standardised conditions should be assumed in all compliance calculations based on a horizontal pipe at 60 C in still air at 15 C Further guidance on converting heat loss limits to insulation thickness for specific thermal conductivities is available in TIMSA HVAC guidance for achiev
127. or electricfloor Construction heating cables should be heating provided with a pre fabricated systems mattress or equivalent IEC 60800 approved heating cable product of thickness less than 4 mm encapsulated in tile bedding adhesive or mortar below a ceramic or other equivalent floor finish on a thermally resistive insulation layer as defined in Table 30 1 0 b 8 0 a Programmable room Controls thermostats with a manual override feature should be provided to control space temperature and limit floor temperature for safety and comfort in each area Section 8 Mechanical ventilation systems 97 Section 8 Mechanical ventilation systems 8 1 Scope of guidance This section provides guidance on the specification of mechanical ventilation systems in dwellings to meet relevant energy efficiency requirements in building regulations The guidance covers the following types of mechanical ventilation intermittent mechanical extract ventilation e continuous mechanical extract ventilation e continuous mechanical supply ventilation e continuous mechanical supply and extract with heat recovery 8 2 Energy efficiency of mechanical ventilation systems Mechanical ventilation systems should a follow the guidance in GPG 268 Energy efficient ventilation in dwellings a guide for specifiers and ii the CLG publication Domestic ventilation compliance guide available from www planningportal gov uk approveddo
128. pinous uu 1s s y oH ul s llog SUH S S M U JO SV y 104 DIjSawOp S ldd DS osje 19109 ay e O SUODIDUO JO 1 U0 Hulyeay adeds uo Hulpuadap Jayem ewid ay o yndul Jamod y ajqeded aq pue 041002 Jajiog sulaysAs Mau 10 SY MO e UUM Dat aq Pjnoys joq ay e 01 sui s s JuaWade day swia sAs A N 6une u JSAA211 2 913 sui 1s s Sunp u e11 u 3 JBM 2142 f 01 UD 10 spiepue suuinuuluiuu iyt lqEL Section 4 Electric heating systems 55 p J e Ag o JOU s op YOMadld pue a Ge INS a e sio elpel Y PAPIAOIA e souul u 1 1 BY YIM 1001 AY Ul UPU 1 U20 SIOZ eIPed UE UO JUa eAINDA JO S A PA 21 E SOUL Y E SUI o poob 1 UMOp paulelp aq o sey l s y sneo q u uu 2eJd l 1 e JO ased y ul Suoneynb l HUIPJING YIM adUel ALUOD 104 55 JOU JIYM Wess JOU A y pez dn o Aressadau JOU sl Hulag 51 18180 1 WOOL P 10 Ja IOG AY Sp YINS JUBUDAUIOD Wea SAS ENPIAIPU UC U YM x sju uu umb J O4 U02 YDO J2 U Jajiog pue pue bulun Duluoz 1 2005 v s uu JEY Wa SAS O1JUOD u uu Deueui 1 109 Aue Ag papiAoid aq sioquo yn bio sjouodbuleay mam 19 ayisqam
129. pipes tanks vessels ductwork and equipment operating within the temperature range 40 C to 700 C e BRE Report No 262 Thermal insulation avoiding risks 2002 Edition Where insulation is labelled as complying with this guide it must not exceed the following heat loss levels vessels including the vent pipe should be insulated for at least 1 metre from their points of connection to the cylinder or they should be insulated up to the point where they become concealed iv If secondary circulation is used all pipes kept Pipe outside Maximum hot by that circulation should be insulated diameter heat loss Replacement systems amp mm 7 06 Wim a Whenever a boiler or hot water storage vessel 10mm 7 23 Wim is replaced in an existing system any pipes that inn Fea are exposed as part of the work or are otherwise accessible should be insulated as recommended 15 mm 7 89 Wim above or to some lesser standard where 22mm 9 12 W m practical constraints dictate 28 mm 10 07 Wim 35mm 11 08 Wim 42mm 12 19 W m 54 mm 14 12 W m ln assessing the thickness of insulation required standardised conditions should be assumed in all compliance calculations based on a horizontal pipe at 60 C in still air at 15 C Further guidance on converting heat loss limits to insulation thickness for specific thermal conductivities is available in TIMSA HVAC guidance for achieving compliance with Part
130. provide heating during power cuts Mineral fuel appliances can be chosen but the attention of designers is drawn to the probable need to supply additional measures as the carbon emission values of these tend to be high Mineral fuel appliances may often have slightly higher efficiencies than their wood burning counterparts Multi fuel room heaters can enable the user to burn renewable wood as well as an alternative to mineral fuels outside smoke control areas Small solid fuelstoves The efficiency of these can be higher than that of dry with boilers appliances They can be integrated with the primary wet heating system Multi fuel appliances enable the householder to burn renewable wood outside smoke control areas 76 Domestic Building Services Compliance Guide 2010 Edition Table 23 Appliance types continued Appliance type Notes Range cookers Typically appliances which are installed in a living area and are designed to provide some useful heat from their case into the space in which they are located They are available ina variety of shapes and sizes and can incorporate a boiler which can be connected to dual fuel integrated systems e g link up Multi fuel versions are also available Where requested These do not have thermostatic control of the burning rate open fires HETAS and have lower efficiencies However they are able to burn categories B1 B2 and wood logs with correspondingly low net c
131. pue Duuun ayesedas BulAeu ydea sauoz Huljeay EdS OM jsea 16 Y IM aq pinous A OSI uey ease JOO lqesn 270 e YUM SBul jamq q DulAl v 0 paubisse 51 o uo ojluo2 zu pu d pu LD s uoz s uoz Dunp v Eds OM 158 6 O U aq pinous 6une u deds swiaysAs 1015V e uu 0S1 0 dn ease JOO lqesn e O e YIM SHuljjamq e 02 gt poli lui pixoid1ou s op UOJL SAYL S A PA JOJLIPeI IEJSOUUIYY asn y q HO Dale aie duind pue J ioq ay you 10 unp u adeds l ull 104 pueuu p OU 51 3194 U YM JEY OS Doll S OJJUOD YDIYM l DO J94U y oH ul s llog sulaysAs Mau 10 sv P O4JUOD 4 lloq e APU p nous suu 1s s p seq l llog e 01 sui s s JuaWade day swia sAs A N 6une u M suu s s Bune u JAM pailJ io JO O1 UOD JO SPJEPUL S papuawwo y 01 lqEL 44 Domestic Building Services Compliance Guide 2010 Edition Ja eM JOY pue Huljeay adeds 4100 104 O4 UOD Hulu lbuls e aAeY o qe1d 22e 51 1 9SED SIY l 1u s id 101 S PND Jop JOY BY 104 11402 SUI 5 pue pade das Hulaq 51 l pull o 1942M 0y ay uo ss un 8 6 5 Mau SV s uoz Sunp u adeds 104 AJUO SI ojJuo2 BI 2 lloq UOIJEUIQWOD e UU se u5ns ASNOBUE UE SU 51 194
132. rds in Table 26 pipework insulation should meet the minimum standards in Table 28 80 Domestic Building Services Compliance Guide 2010 Edition Table 24 Recommended minimum standards for the design of new community heating systems to maximise efficiency of heat generation and minimise energy use by pumps Community Newsystems Supplementary information heating 1 0 Boiler only community When calculating the carbon emission Boilers heating systems for nevv 1 rate the type and quantity of fuel dvvellings may be used used and also the electricity needed to provided that the Target operate the central plant and pumps carbon dioxide Emission should be taken into account Rate TER for the dwelling Forsystems using condensing boilers is not exceeded e To achieve high boiler efficiency Boilers should be selected return temperatures from radiator to comply with the boiler circuits should be selected lower efficiency requirements of than 50 C the Non domestic building Where instantaneous plate heat services compliance guide exchangers are used to produce hot water in individual dwellings the return temperature selected should be less than 40 C e Where hot water cylinders are used the coil size should be such as to require a flow rate that results in a nominal return temperature of less than 40 C whilst meeting the required heat up time e Where hot water is produced centrally e g in each block
133. s 1 y JO Wed Ja eM JOY y JO BWUNJOA U 51 A Baym AeP UMA ez LS 0 2 01 x 9 Buip 5x ou sso 1e u e aAeY uonlippe l pue 861 Sg YUM A duuo2 p nous si pull o uonpulqulo2 71 5 5 PUL U UOnP Nlb dS up LOL q UOREDOSSV JOH 9U JO Z JO UE uon2 s Jo sJu ul uinb l uone nsul v Jaa p nous 54 5 5 15 Mewd uolle n24iD ANAEID aq 40u p nous suu 1s s p u Aun p suone n06 i Huipying ulu Sul iduloo se Apoq Jayjoue Aq Daa aq III 10 DUNO Ydeasay dU 1u uu 96v Jo pieog ysyug u1 Aq p l aq 40 268Z1 NASA Uu dulo p nous sionpoid uu 1s s Beiols 1942M JOY p lu Aun 2 QOq Sg JO slu uj uinnb lu Jabueyoxe 1e u pue sso 1694 ay UI dulo p nous J ddo gt uey Jayj o SIEH PUL Ul SuapUl AD p zu A q 86 LE Sg 40 000Z 1 99S 58 JO slu tu unb l Jabueypxa 1e u pue sso 1e u ay UU duuo2 pinoys sjassaA aHeJO s 1942M JOY Jaddod Doan e suu s s Ju uu 32e d 1 pue M N 15 02 6une u l n pilos p nunuo Bune u le nu jan pijos 104 Buluolssiululo pue uoneued id wa sAs abes0 s 193M 1ou aHe10 s f n l 3s4S 10 5 LUNWIUILU p pu uuuuo3 u 0Z lqEL 70 Domestic Building Services Compliance Guide 2010 Edition SIOJEIPE BY HO P
134. s s 1u uu 2e d u swia sAs M N Buluol SSIUIWUOD 02 yu uuye 1 1 eAA pue uu s s O 6une u Io 2U Da p nunuo 2 swa sAs Bune q 2 104 Buluolssiululo pue uoneued 1d Wia SAs 10 5 EL lqEL 54 Domestic Building Services Compliance Guide 2010 Edition jeludoidde jou si fonuoo Jo Huluoz qns eae 1001 18101 Y JO 0202 UEL 51 Du y YDIYM ul SHul j amp ue d u do lo s lbuls 104 j S O4JUOD pue Duuun ayesedas BulAeu ydea sauoz Sune q EdS OM jsea 18 Y IM aq pinous z l OS uey ease JOO lqesn 270 e YUM SBul jamq q v o paubisse s qo UO O1 UOD 1u pu d pul Y IM S UOZ Dunp q deds OM 158 16 O U aq PINOYS AU Buluoz SUH S S M U JO SY OS 0 dn ease JOO lqesn 270 e YUM 5601 e 02 you s op UOJL SAYL 2 190 1 Jo asn ay HO paydyiMs dund pue Joo au u u 5112 1972M 10 JO eds ay Jos JEAY 10 22 OU SI 3419Y UBYM JEU OS D IIAA ale S OJJUOD YDIYM UI ADO Ja UI J Jioq e aBAeY
135. s Compliance Guide 2010 Edition Table 8 Minimum appliance efficiencies for gas fires in a combined fire and back boiler unit continued Supplementary information further guidance on gas fired heating Energy Efficiency Best Practice in Housing publications CEF30 Domestic heating by gas boiler systems e CE51 Central heating system specifications CHeSS e CE54 Whole house boiler sizing method for houses and flats SBGI publications on gas boilers and gas fires under development at the time of writing See vvvvvv sbgi org uk for updates CORGI Domestic Manual Series e GID1 Essential gas safety GID2 Gas cookers and ranges e GID3 Gas fires and space heaters GID5 Water heaters GID7 Central heating wet and dry CORGI Design Guides WCHI Wet central heating system design guide WAHT Warm air heating system design guide British Standards BS 5440 1 2008 Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net 1st 2nd and 3rd family gases Specification for installation of gas appliances to chimneys and for maintenance of chimneys BS 5440 1 2009 Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net 1st 2nd and 3rd family gases Specification for the installation and maintenance of ventilation provision for gas appliances BS EN 12828 2003 Heating systems in buildings Design
136. summary table To assist compliance with the relevant energy efficiency requirements in building regulations this guide sets out recommended minimum energy efficiency standards for space heating domestic hot water cooling ventilation and lighting and for microgeneration of heat by heat pumps solar thermal panels and micro combined heat and power packages They are summarised in the table below The sections that follow the table give guidance on how to meet these standards It is important to note that many of these recommended minimum standards will need to be exceeded if the building regulations target carbon dioxide emission rate TER for new dwellings is to be met 10 Domestic Building Services Compliance Guide 2010 Edition Summary of recommended minimum energy efficiency standards for building services Building service Standard Gas fired wet central heating systems Seasonal efficiency SEDBUK 2009 SEDBUK 2005 Condensing boilers 88 90 Non condensing boilers where permitted 78 78 Range cooker boilers 75 75 Gas fired warm air heating Efficiency See Table 4 Gas fired fixed independent space heaters Efficiency gross Gas and LPG primary 63 Gas and LPG secondary heating 63 new build 45 existing build Decorative fuel effect Not specified set to 20 in SAP 2009 Gas fires in combined fire backboilers Efficiency gross replacem
137. swia sAs M N 6une u M suu s s Bunesu JOM 1 10 Butuoissiuuuuo3 pue wa sAs abe10 s 1372M JOY Wa SAs ADUAIDIJJa 40 5 6 4 1 Section 3 Oil fired space heating and hot water systems 37 SQUNJLIBAWA 1 BAA UINJ I MOJ YIIYM sanbiuyra s duuex a e UOnesu dulo 1 U P A pue Bune u Se YINS sJ iuu aunjeladwa MOT uoleJ do bulsu puoo s wxew YDIYM bap S uey SS IgeJ J id sainjzeidwe Uln l WiaysAs ewid moj O se OS paubisap ag pjnoys sul s s pay ale siajlog Bulsuapuod aay uonewojul Aveyuawajddns paduund An o p H uoo aq pinous UOUEITOID ANAE D IUV S LU SUu 1S S nsix ae 5 100 u uAA SUH S S JO SY oO suu s s 1u uu 2e d u u1Bu did uinulluluu UO suom n nsul S JaINJDeyNUeW y pue aq pinous anjer ssedAq dIyeWO Ne ue ssedAq e JO UOHP IE3SUI ASIAPe SUO INAYSUI J jloq ay JI 0 n ang pinous sin li Mewd 1 15A 20U 2059 4 pue sul s s eds e Sq lloq Bune y Jenu eJ6 1u YUM SI YOO Palf IO uOlD S l se aq pinous si
138. te treatment products and special requirements for individual appliance models d Where mains water is used to fill the solar primary circuit and the total water hardness exceeds 200 parts per million provisions should be made to reduce the limescale Existing installations a Solar thermal systems should be cleaned vvith an appropriate cleaner formulated to remove build up of degradation films from exhausted heat transfer fluids then flushed through vvith fresh solar heat transfer fluid b Systems should be filled vvith a heat transfer fluid containing avolatile inhibitor package capable of protecting the system from frost and corrosion atall operating temperatures c Installers should refer to the equipment manufacturer s installation instructions for appropriate treatment products and special requirements for individual appliance models Legionnaire s disease The control of legionella bacteria in water systems Approved code of practice and guidance HSE Books Section 11 Solar water heating 117 Table 38 Recommended minimum standards for labelling commissioning and documentation for solar hot water systems Solar water Supplementary heating New and replacement systems information 1 0 a All solar collectors should have a In addition to the Labelling of visible and durable label displaying minimum provision for solar all information required according to labelling of hot water
139. tem performance per 1 m of solar collector net Heat exchangers and store absorber area connections should be sized and located to promote a low return temperature to the solar collector Solar heat exchangers are often sized larger than those usually used on gas or oll based primary systems ovving to the lovver temperature of transfer 114 Domestic Building Services Compliance Guide 2010 Edition Table 37 Recommended minimum standards for indirect solar water heating continued Solar water New and replacement systems Supplementary information heating 6 0 a Solar domestic hot water DHVV System system controls should be fitted control to i maximise the useful energy gain from the solar collectors into the system s dedicated storage ii minimise the accidental loss of stored energy by the solar DHW system whether originating from solar collectors cold intake or auxiliary heat sources iii ensure that hot water produced by back up auxiliary heat sources is not used when adequate grade solar pre heated water is available iv provide a means of control consistent with the solar system being hydraulically inherently secure against the adverse affects of excessive primary temperatures and pressures v where aseparate DHW heating appliance is pre heated by a solar system control the appliance where possible such that no extra heat is added if the target temperature is alrea
140. ter circuit is not present b For dwellings with a total usable floor area In this case it is greater than 150 m timing of the separate acceptable to space heating zones can be achieved by have a single i multiple heating zone programmers or timing control li a single multi channel programmer or for both space ili programmable room thermostats or heating and hot iv separate timers to each circuit or water v a combination of iii and iv above c Where the hot water is produced instantaneously such as with a combination boiler time control is only required for space heating zones 5 0 a Separate temperature control of zones As for new Temperature within the dwelling should be provided systems control using of space i room thermostats or programmable heating room thermostats in all zones and ii individual radiator controls such as thermostatic radiator valves TRVs on all radiators other than in reference rooms with a thermostat and bathrooms 24 Domestic Building Services Compliance Guide 2010 Edition Table 2 Recommended minimum standards for control of gas fired wet central heating systems continued Gas fired Replacement wet heating New systems systems 6 0 a Domestic hot water systems should be a Asfor new Temperature provided with a cylinder thermostat and a systems control of zone valve or three port valve to control the for planned domestic temperature of stored hot water r
141. ter than 0 044 Wim K at 40 C mean and the insulation diameter must be 87 of the pipe diameter Where insulation is labelled as complying with this guide it must not exceed the following heat loss values Pipe outside Maximum heat diameter loss 8 mm 7 06 W m 10 mm 7 23 Wim 12 mm 7 35 W m 15 mm 7 89 W m 22 mm 9 12 W m 28 mm 10 07 W m 35 mm 11 08 W m 42 mm 12 19 W m 54 mm 14 12 W m 120 Domestic Building Services Compliance Guide 2010 Edition Table 39 Recommended minimum standards for insulation of pipework in solar hot water systems continued New and replacement systems Supplementary information Further guidance on converting heat loss limits to thicknesses of insulation for specific thermal conductivities is available in the TIMSA HVAC guidance for achieving compliance with Part L of the Building Regulations Insulation for pipework in unheated areas Extra provision may need to be made to protect water carrying pipework in unheated areas against freezing Further guidance is available in BS 5422 2009 Method for specifying thermal insulating materials for pipes tanks vessels ductwork and equipment operating within the temperature range of 40 C to 700 C e BRE Report No 262 Thermal insulation avoiding risks 2002 Edition Section 11 Solar water heating 121 Supplementary information Guidance and standards
142. ter than 150 m should be provided are recommended vvith at least tvvo space heating zones for both electricand each having separate on off timing warm water systems controls and temperature controls c For single storey open plan dwellings in which the living area is greater than 70 of the total floor area sub zoning of temperature control is not appropriate d Thick screed floor heating systems gt 65 mm should have facilities for automatic setback of room temperature to a lower level at night or during unoccupied periods 4 0 a Warm water floor heating system Boiler control controls should be interlocked with the Wet boiler and stored hot water temperature underfloor control to ensure that the boiler does not heating fire when there is no demand for heat for systems only either space or water heating Section 7 Underfloor heating systems 93 Table 30 Recommended minimum standards for floor insulation and minimising distribution losses in vvet and electric underfloor heating systems Underfloor Nevv systems Supplementary heating information 1 0 a Ground floors on earth or suspended The specifier Exposed ground floors in contact with outside air should should confirm floors be insulated to limit downward heat that insulation loss to not more than 10 W m resulting levels comply from thermal resistance of the applied with Approved floor finish Document b When heat output is not known but standards
143. tion hot water storage system preparation and commissioning in Table 1 b boiler interlock zoning and time and temperature control of the heating and hot water circuits in Table 2 pipework insulation in Table 3 All gas appliances must be installed by a competent person in accordance with the current issue of the Gas Safety Installation and Use Regulations The installation should follow the manufacturer s instructions and should comply with all relevant parts of the Building Regulations and for wet systems the Water Regulations Section 2 Gas fired space heating and hot water systems 15 sjuatundoppanciddeyyn nob jeuodbuluue d mm woy qe I8AV 002 012 S UH AAD 104 lnp oold uiss sse uonejjesul Buisu puo2 v o pinD 9 01 bulsu puoo uou y ag ACW sJ JlOq YDIYM Ul SAIUE JSLUNIUID feuond x v BuluslIqe s 104 lnp oold paroidde u 1NO s s 5 104 lnp oold Ju uuss sse uoneJJe Sul 19 109 bulsu puoo v o plnp 012 L S002 ANAS q o pawinsse aq 5 11 SOO 1r18q3S 40 6002 ANAIS 2 4BYJOYM 1815 JOU SBOP GIE S l lloq P ul Du lJJ YNIGIS 2424 SHuyjyjamp JOJ UOISSILUA DIXOID UOGUED y 2 1 600Z dVS Ag pasn ae Jey S4 llOQ 1OJ S IDU DIJJ 1B EM JOY 1 J uuuuns JAZUIM ajzesedas y IM 42432960 yoq 5926 uloo ynqp s mum je aseg
144. uilding on a cold day with a temperature differential of 24 2 C Note For a given heat demand the PSR determines the part load condition for the heating plant 126 Domestic Building Services Compliance Guide 2010 Edition 13 3 Micro CHP systems d For new systems and replacement systems the HPER of the micro CHP package calculated as in c below should be no greater than the carbon emission factor for the fuel divided by the minimum efficiency for a regular boiler using that fuel at the PSR determined as in b below The design heat loss of the dwelling should be calculated using the Energy Saving Trust s Whole house boiler sizing method for houses and flats 19 The PSR for the micro CHP system when operating in the intended dwelling should be calculated as defined in 13 2 above The HPER of the micro CHP system should be calculated at the PSR determined inc above using the methodology set out in DECC 5 Annual Performance Method APM T and the performance data for the micro CHP package establied by testing according to BSI PAS 67 2 Supplementary information British Standards BS EN 15316 4 4 2007 Heating systems in buildings method for calculation of system energy requirements and system efficiencies Heat generation systems building integrated cogeneration systems Other documents Appendix N of SAP 2009 Method to evaluate the annual energy performance of micro cogeneration heating systems in dwell
145. ulators For any particular application reference may need to be made to more than one section Supplementary information that may help with interpreting the minimum energy efficiency provisions needed to comply with the Building Regulations is in italic font with a grey background In some cases there are links to best practice guidance that goes beyond the recommended minimum requirements Key terms are defined immediately below and at appropriate points throughout the guide They are shown in italic bold font 1 6 Key terms Fixed building services means any part of or any controls associated with a fixed internal or external lighting systems but does not include emergency escape lighting or specialist process lighting or b fixed systems for heating hot water air conditioning or mechanical ventilation 8 Domestic Building Services Compliance Guide 2010 Edition New system means fixed building services installed in a new building or for the first time in an existing building Replacement system means fixed building services installed as a replacement for a system in an existing building Seasonal efficiency means the annual efficiency value used by SAP for a heating appliance For gas LPG and oil boilers that have been tested for efficiency this is SEDBUK 1 7 Replacement of primary heating appliances When replacing an existing appliance the efficiency of the new appliance should not be significantly less than
146. unena Jo JuaWade Aed JUuanbasuod pue sso PIOAe o UJ slgA J abesop o uonu ye 4pynoyied bulked 104 p insuoo aq PINOYS SJ INPEJNUEN p uleyulpul M dold pue pappe ag pjnoys sod nd y 104 p lnuuo AjjedipI9ad s JOJIQIYU UOISOLO P uu s s buljeay equ o Aue ul p sn ale u J DUC UOISOLIOD paseas aul ue APU 5 UIS DUPU X SEQ e ern paljddns SOU JO ulJeyJe MO JO SIE Mos Ayeinjzeu 150 S OU 66 S9 uonewsojul Azeyu ul yddns SUl S S MAU JO SY p plAo d Jenuew Jasn su jejnueuu y ulpnpul 5 ay o uonesa do SU pue uu 1s S ay JO uolleue dx NJ e n p nous Jayjeysul y q 1 0 2 MOUS 0 p ldulo aq pinous pio2 1 Buluoissiuuuuo2 e pue p nous 41401551 2 JO SuOl Dni sul e JO Jo y np L 0 5 100 UODEUIOUUIO JO JOY ay pue 5 O D J dU 7291 O pinous UOISIAO1d uOl ILu Jad sued 002 Sp x ss upieu 1 EM IEIOL SUIEWW BY D sl pouu 1J ioq jenpiAIpui JO slu uj uinb l jeD ds pue s onpoid 1 leludoidde 104 suolpniulsul uonejie1su su n poejnueuu 19 109 y 0 os e p nous 5 154 suu
147. upplementary information a Stand alone glandless circulators should be Further information and labelled for energy efficiency in accordance guidance including a list of with the Europump Labelling Scheme and have approved glandless domestic a rating in the range A to G circulators is available at www bpma org uk The EuP Directive will introduce arequirement for all circulators placed on the market from January 2013 to have a minimum Energy Efficiency Index EEI initially equivalent to an A rating under the Furopump Labelling Scheme and later equivalent to an A rating To meet these standards over the next three to five years the circulator industry will have to switch from using induction motors to permanent magnet motors ONLINE VERSION Published by NBS part of RIBA Enterprises Ltd and available from RIBA Bookshops Mail Order 15 Bonhill Street London EC2P 2EA Telephone orders General enquiries 020 7256 7222 Fax orders 020 7374 2737 Email orders sales ribabookshops com Or order online at VVVVVVv thenbs comv buildingregs RIBA Bookshops RIBA 66 Portland Place London WIB 1AD Telephone 020 7256 7222 Birmingham amp Midland Institute Margaret Street Birmingham B3 3SP Telephone 0121 233 2321 RSUA 2 Mount Charles Belfast BT7 1NZ Telephone 02890 323 760 CUBE 113 115 Portland Street Manchester M1 6DW Telephone 0161 236 7691 milkandsugar 82 Wood Street Liverpool L1 4DQ Telephone
148. uu 2e d Juanbasuod pue sso O UJ slgA J abesop o uonu ye 4pynoyied bulked 40 p insuoo aq pjnoys SJ INPEJNUEN p uleyulpul M dold pue pappe ag pjnoys sod nd y 104 p elnuuo AjjedipIad s 1o iqiqul UOISO UOD P Wwayshs buljeay jeu Aue ul p sn ale u JI PUL UOISOJJOD p se Du ue APU 5 UIS DUPU X S Q e ern paljddns SOU JO ulJeyJe MO JO SIEM Mos Ayeinjzeu 1641 SALOU 6S SY SUV S S bune y JOY 2I s uuop Ul JO 14 1 10 JO 2 900C 6682 58 4 14 DIEDUEIS y SI U NOS JAJEM JO SI TD L JeD2S 230 JOJ 2 J Dulsop azeydsoyd jod s o iq qul 9 EISAWI PUL UOlSOLO p ulqulo SIOPGIYU e3s uul EDILUBY JO 5 OU AQ p Jlo puo2 aq UD 289 1 p Ao dde HE DPIING q P NOYS sioliqiud uonewojul Aveyuawajddns LL uollp s S suj 1s s IPULL U JE OS 104 JO uone nuuin22e Jo u1 2np 1 0 si loq UOIJEUIGWUOD JO JINDIID 1942M 0y ay pue 5 1 eAA O D J 9y 7291 O peuu aq p nOus UOISIAO1d uOl JILu Jad syed 002 sp x ss upieu e1 O SUIEWW BY D sl pouu 1J ioq jenpiAIpui JO slu uj uinb l jeD ds pue spnpod 1u uu e 1
149. uyu aduel dwod u u uudinb BY JO UO U DLH MOYS SINSO y pue aPeW u q ALY Sp U BY II JEY Up U 15U OS UV S S v HUIUOISSILLUOD suosJ d y g uon yduuo 104 xup ldde y YUM 15 20 2 P APIAOIC sI pjoy 2 2 JJeury2u g ZJuo1lDeJsnes no u q sey BuluoIssiuuuuoD 150 MOYs O p sn aq ued sIJ 2 UD BuluoBIssiuuuuoD 2 91 ul s4S yuculu u g 91 Azeyu ul yddns jenue Jas sjainjoeynuew y bulpnpul Jeep y o SU pue uu 1s S ay JO uolleue dx IIn e n p nous Jayjeysul y q UV 1S S afp IO 10 JO J ioq v o 21110005 aq IM SUOIDNAYSU S yL SUOIJINAJSU SJaINPe NUeW v LIA adUePsOIIE Ul PAUOISS LULUOD aq p nous1u uudinb y Sjo1 U02 pue sduind yJoMedid se yons 1u uidinb 55 UUM l v bo ul s S a6eJ0 s Buiuol 10 JO Jajiog e JO SSIWWOJ swiajzsAs Mau SY e uolejie1su u JO uo e Oe suu s s juaWade day swa sAs Man Bunme u z m 5 5 6 5 Bune u le nu aM 56 104 Buluolssiululo pue wa sAs 15 19 eM JOY uone n24inD 5 5 JO 5 lqEL S
150. winter and summer i e hot water efficiencies for boilers which SAP 2009 at www bre co uk sap2009 uses to calculate carbon dioxide emission rates for dwellings To avoid confusion with a prospective EuP Directive labelling scheme the database no longer shows A to G efficiency bands for boilers Section 1 Introduction 9 Examples 1 An old oil fired boiler with a seasonal efficiency of 72 per cent is to be replaced by a dual solid fuel boiler The new dual solid fuel boiler should have a aseasonal efficiency not less than 65 per cent from Table 18 in this guide and b acarbon equivalent efficiency not less than 70 per cent A dual solid fuel boiler with a seasonal efficiency of 65 per cent will meet condition b as its carbon equivalent efficiency is 65 x 0 274 0 206 86 5 where 0 274 and 0 206 kgCO kWh are the emission factors for oil and dual solid fuels respectively 2 AnLPG fired boiler of 83 per cent efficiency is to be replaced with an oil boiler The new oil boiler should have a aseasonal efficiency not less than 90 per cent from Table 9 and b acarbon equivalent efficiency not less than 81 per cent To meet condition b the seasonal efficiency of the proposed new oil boiler should therefore be at least 81 0 245 0 274 90 59 where 0 245 and 0 274 kgCO kWh are the emission factors of LPG and oil respectively 1 8 Energy efficiency standards for compliance with building regulations
151. within the dvvellings should be demonstrated to the resident and suitable information provided on the operation of the controls includes a low carbon heat source the control system should be proven by demonstrating that the low carbon heat source will normally act as the lead heat source 88 Domestic Building Services Compliance Guide 2010 Edition Table 28 Recommended minimum standards for insulation of internal and external pipevvork for community heating systems Standards for internal pipevvork in nevv Supplementary information systems a Pipes should be insulated to comply with the Insulation of pipework in unheated maximum permissible heat loss indicated in areas the Supplementary Information column and Extra provision may need to be made to labelled accordingly as follows protect central heating and hot water i Primary circulation pipes for heating and hot pipework in unheated areas against water circuits should be insulated wherever freezing Guidance is available in they pass outside the heated living space or BS 5422 2009 Method for specifying through voids which communicate with and thermal insulating materials for pipes are ventilated from unheated spaces tanks vessels ductwork and equipment ii Primary circulation pipes for domestic hot operating within the temperature range water circuits should be insulated throughout 40 C to 700 C their length subject only to practical
152. work in Table 28 Connecting dwellings to an existing community heating scheme When existing community heating systems are connected to new or existing dwellings the minimum requirements are a if the existing community heating system is in need of replacement or improvement a study should be carried out to assess the economic and environmental benefits of a range of options including the use of CHP and other low carbon heat sources especially where individual heating systems are being considered as an alternative to continuing with the community heating system replacement boilers should meet the minimum standards for boiler efficiency in the Non domestic building services compliance guide available from www planningportal gov uk approveddocuments gt Part L gt Associated documents if thermal energy is purchased from an existing district or community heating system an assessment of the carbon intensity of the scheme should be carried out Emission factors should be determined based on the particular details of the scheme but should take account of the annual average performance of the whole system that is of the distribution circuits and all the heat generating plant including any CHP and any waste heat recovery or heat dumping The calculation of the Dwelling CO Emission Rate should be carried out by a suitably qualified person who should explain how the emission factors were derived controls should meet the minimum standa
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Domestic Building Services Compliance Guide: 2010

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