Installation and user's manual Wood burning sauna heaters
Contents
1. 10 provided a single light protection is used This kind of single light protection can be constructed either by using a minimum 1 4 thick incombustible cement plate reinforced with fiber or by fastening an at least 1mm thick metal plate densely enough to the wall A minimum 1 1 4 vent hole must be left between the protective plate and the wooden surface to be protected This can be done for example by using pipe bushings as intermediate supports Figure 2 3 The safety distance mentioned on item 1 can be further decreased to minimum 5 provided a double protection is used The double protection can be constructed using two plates described in item 2 in addition to which an at least 1 1 4 vent hole must be left between the wall and the plates Figure 3 Figure 1 Figure 2 Anchor screw 1 1 4 vent hole 040 metal plate or 1 1 4 thick incombustile cement plate reinforced with fiber Figure 3 Anchor screw 1 1 4 vent hole 040 metal plate or 1 1 4 thick incombustile cement plate reinforced with fiber o o o rJ 09 0 0 o 0H 20 0 9 0 2522o o 0920 92 Oe oQ e 090 o OE 06 302 29 0 es 4 If the wall has been bedded in a 2 vent hole between the wall and the vertical surfaces of the stove is enough Figure 4 Figure 4 Dimension A is determined according to the protection method used for wooden surfaces 20 with no protection 12. and other fire safety regulations Helo 20SL Helo 28SL Helo 38SL A Model Helo 20 SL 28 SL 38 SL Sauna volume m 8 22 283 777 12 28 424 989 18 38 635 1342 Power kW 20 25 30 Weight kg 75 165 Ib 100 220 Ib 130 286 Ib Rocks kg l 40 88 Ib 55 121 Ib 70 154 Ib Top part of the firebox mm 8 5 16 10 3 8 10 3 8 Harpa walls mm 4 3 16 4 3 16 5 1 4 A E F_ Gc food Helo 20 SL mm 520 550 460 500 340 T 20 1 2 21 5 8 18 1 8 13 3 8 Helo 28 SL mm 520 650 570 450 in 20 1 2 15 3 4 25 5 8 22 1 2 17 3 4 Helo 38 SL mm 570 650 570 450 in 20 1 2 15 3 4 25 5 8 22 1 2 17 3 4
3. installed hinge mounts on either side of the firebox door opening see figure Mounting the door Line up the door and hinge mounts Insert the hinge pin through the first hole from above push the pin into the guide channel and then pull down The bent section of the hinge pin should be at the bottom Heater care and maintenance Kiukaan savukanaviin kertynyt noki ja tuhka on poistettava silloin t ll in kivitilan p ll mallista riippuen olevan py re n nuohousluukun kautta Kiuaskivet rapautuvat k yt n Soot and ash accumulated in the heater flue ducts must be removed on a regular basis using the round soot hatch on top of the stone tray depending on the model Sauna rocks will crumble over time which is why they must be reloaded at least once a year more often with heavy use Stone debris accumulated in the stone tray must be removed and crum bling stones replaced The chimney must be swept regularly in order to maintain proper air circulation The heater ash drawer must be emptied before each heating to allow combustion air running through it to cool the fire grate thus extending its service life A metal container preferably with legs should be reserved for collecting ash NOTE Because removed ash may contain hot embers do not keep the metal container near combustible materials Bright or brushed steel surfaces should be wiped down regularly using for example a nor mal cleanser This will prevent the formatio
4. room dimensions heater output and the materials used in the walls Uninsulated walls brick tile concrete glass increase the need for additional heater output 2 m of additional air capacity must be calculated for every square metre of wall space If the sauna walls are made of solid timbers the cubic air capacity must be multiplied by 1 5 The heater fire grate must be cleaned and ash drawer emptied before each heating Avoid heating up when the flue duct in the stone tray has been glowing hot for a long time as this will overload the heater firebox and shorten the useful service life of the heater After taking a sauna bath a small fire can be left burning to help dry out the sauna room structures Water quality Clean tap water must be used for sauna steam water Check the quality of the water Water with a high saline iron or humus content may cause premature corrosion of the heater Iron rich water may also leave rust like spots on the surface of the heater when it dries Clean the rust spots with a stainless steel cleaner Never use sea water on the sauna heater The warranty does not cover damages caused by sea water or iron rich water Flue duct mounted water tank Wood burning heaters excluding the Ukkotonttu heater can be fitted with a 22 litre flue duct mounted water tank 4 Changing the direction of door opening Firebox door The firebox door can be installed to open from the left or right There are pre
5. 0 with single light protection 5 with double light protection 5 A 2 1 4 embedding with open sides at a minimum 1 1 4 distance away from the protected surface is equivalent for a single light protection Likewise a 4 1 4 embedding not touching the protected surface would be equivalent for a double light protection Figure 5 Figure 5 Protecting the ceiling 4 1 2 2 1 4 Provided the distance between the stove top and the ceiling is minimum 47 3 4 no special protection is needed for the ceiling If the distance is less than 47 3 4 you can choose one of the protection methods mentioned in items 1 3 The ceiling protection must extend above the vertical surfaces of the stove Figure 6 F in No protection for the 47 1 4 ceiling Single light protection 35 1 2 FIREPLACE BASE Figure 6 The fireplace must be installed on a rigid base This base must be strong enough to bear the weight of the fireplace and to prevent any excessive rise of temperature of the structural elements connected to it When installing the stove on a wooden floor it is advisable to use a minimum 2 thick concrete slab or a minimum 1 4 thick fiber reinforced cement plate covered by a metal plate Protecting the floor in front of the stove Figure 7 The safety distances listed in items 1 5 cannot be applied i to a combustible floor area in front of the stove This area 77 should be protected using a
6. Wood burning sauna heaters Installation and user s manual Thank you for choosing quality products from Saunatec We think that our products will live up to your expectations and give you many hours of enjoyment in your sauna We want you your family and friends to have many comfortable sauna baths and at the same time find new ways to enjoy the sauna bathing Saunatec is the world leading producers of products for saunas and steam saunas We develop produce and market products for saunas and steam saunas in the world Saunatec has the largest factories of sauna products in the world Finland Germany and the USA and a well developed network of retailers both nationally and internationally Our product range consists of sauna and steam rooms electric and wood heaters control panels and sauna accessories Pentti Piisku President Saunatec Group Ltd User Guide Wood burning sauna heaters Copyright 2004 Saunatec Group Ltd All rights reserved Preparing the heater for use 4 Minimum safety distances 4 Wall protection and choices of material 6 Installation 7 Installation of heaters with front water tanks 8 Ventilation in a wood burning Sauna 8 Sauna rocks 8 Heating up 9 Water quality 9 Mounted water tank 9 Changing the direction of door opening 10 Heater care and maintenance 10 Troubleshooting 11 Helo 20SL Helo 28SL Helo 38SL Installation 12 Preparing the heater for use Read the instructions carefully before th
7. ck material to fall to the floor with the steam water The heat generated by the furnace and temperature changes may also cause small metal flakes to fall to the floor which is a normal property of metal Due to the above mentioned facts it is a good idea to avoid using light coloured materials near the heater Always check the heat resistance of the tiles with the supplier Keep the floor under the heater clean Minimum safety distances Minimum safety distances between the heater and combustible materials from the sides and back of the heater 500 mm from the front of the heater 1000 mm from the top of the heater to the ceiling min 1200 mm from the heater to the floor see Floor protection min 50 mm Statutory minimum safety distances to combustible materials can be reduced by half with single layer and by 75 with double layer light protection 4 r GA INSTRUCTIONS FOR INSTALLATION USE AND MAINTENANCE Side walls Woodburning sauna stoves are regarded as fireplaces having scorching surfaces In our stoves the surface temperature will not exceed 350 C and the following safety distances should be observed when using them Inflammable structural elements such as wooden walls sauna seats etc 1 Minimum distance between the vertical surfaces of the stove and any unprotected wooden structural element 20 Figure 1 2 However the safety distance mentioned in item 1 can be decreased to minimum
8. e first use The heater is painted with heat resistant paint and due to its chemical properties it may evaporate burning odours from its surface when heated for the first times Therefore we recommend the first heating up to be done outdoors or in a well ventilated sauna room The first pre heating must be done without stones If the sauna stove is heated up outdoors it should be done with a 2 metre connecting pipe installed in order to get a good draught In preheating the continuous heating with 3 5 loads of wood should be enough to remove the anti corrosion substances from the heater One of the paint properties is that it reaches its final state only during the first heating times Thus rubbing and wiping of the painted surfaces should be avoided before the first use Handle the heater with care The heater is likely to release paint odour for some time as any other painted materials Adjustable feet The heater can be equipped with optional adjustable feet shown here Adjustable feet facilitate the installation of the heater on an inclined floor Installation point Make sure there is enough space for installation and observe the safety distances Heating up requires 1 m x 1 m around the heater Place the heater far enough from combustible materials and protect the floor if the floor is tiled See that there is space in the niche for air circulation minimum of 100 mm Remember that the sauna rocks decay over time causing fine grained ro
9. l The maximum allowed temperature for wall and ceiling surfaces is 140 C Note Glass and stone surfaces Heater installation In all our heater models there is a port for the connecting flue duct on top of and behind the heater Close the unused port with the cap provided With the heater there is also a 200 mm connecting flue duct which can be used for rear mounted flue ducts Do not push the connecting flue duct too far into the chimney this will block air flow The gap between the masonry chimney and connecting flue duct must be insulated with for example mineral wool During installation ensure that the heater is fastened securely on its base and that all the minimum safety distances listed in this manual are correct Connecting the heater to a masonry chimney There are two ways to connect the connecting flue duct to the chimney If the connecting flue duct is run from the top of the heater the port in the back of the heater must be closed tightly with the cap provided remove the cap on the top port The masonry connector is bricked into a hole made in the chimney at the correct height for connection to the flue duct port The flue duct is connected to the heater which is removed when the flue duct is inserted into the masonry connector The optional flue duct feed through collar is used to give a finishing touch over the masonry work around the flue duct The feed through collar is made of noble metal e L Feed
10. metal plate connected to the floor and closely fitting the stove The floor protection in front of the stove must extend at least to 4 beyond both side of the oven mouth and to 15 3 4 in front of it Concrete f Wall protection and choices of materials If the wooden walls surrounding the heater are closer than the required minimum safety distance recommends and the walls are made of a combustible material panels boards logs etc the wall surfaces must be protected A 2 3 16 masonry equals single layer protection and 4 3 8 masonry equals doublelayer protection The masonry must be open ended and at least 1 18 from the surface being protected extending 23 5 8 above the top of the heater and have a 19 3 4 minimum safety distance on each side Wood materials used in the sauna room such as panels will darken over time This darkening is caused by temperature changes in the sauna If the wall panels have been treated the wall surfaces above the heater will begin to darken very quickly depending on the treatment used Darkening is due to the fact that the treatment has a weaker resistance to heat than untreated wood This has been proved in material tests Fine grained stone particles rising from crumbling sauna rocks with air currents may darken the wall surfaces around the heater If the heater installation instructions are followed the heater will not heat up combustible materials used in the sauna room to a dangerous leve
11. n of lime and reduce the amount of spots caused by iron rich water Cast iron door care Cast iron parts should be coated regularly for example with cooking oil in order to prevent rusting Cleaning glass surfaces Take a moistened paper towel and dip it in some ash Use this to clean the glass surface and then dry with a clean paper towel This will brighten the glass Troubleshooting 1 10 11 Connecting to the chimney e Use only Saunatec connecting flue ducts feed through collars cover plates and connectors e Check the fire safety of the chimney connection seal use mineral wool or ceramic fibre if necessary e Do not mount the light duty flue to the heater Attach the light duty flue to sauna structures only e Ensure that the connecting flue duct diameter is correct and the joint is tight Other fireplaces on the same chimney e Install one fireplace per chimney Check fireplace function First heating burning and other smells e The first heating should be done in the sauna without rocks with the heater connected to the chimney The sauna must be thoroughly ventilated and the heater must be heated for an adequate length of time min 3 5 loads of firewood e If the first heating is done outdoors a minimum of 2 metre metal duct must be used as a flue duct Direct installation using adjustable feet e Install the heater on an even base using Saunatec adjustable feet if necessary accessory Sauna
12. r use as sauna stones should be used for this purpose Such rocks are for instance vulcanite or olivine diabase sauna stones NOTE Supracrustal stone collected from nature may contain for example sulphur compounds or other inap propriate substances thus making them unsuitable for use as heater stones The stone dust on the heater stones must be washed off before loading them into the heater Larger stones are placed at the bottom of the stone tray so that the even surfaces face the inside surfaces of the stone tray Smaller stones are placed on top as they reserve heat even further away from the source of the heat The moisture level of the sauna steam depends on the amount of stones and sauna temperature The more stones there are in the heater and the lower the sauna temperature and the higher the moisture level Heating up Wood is the only material that should be burned in the heater Never use materials with high heat capacity such as particle board plastic charcoal or briquettes Air is circulated by opening the ash drawer Excess draught will cause the heater to glow which will significantly shorten its service life Air circulation should however be kept at a reasonable level in order to heat up the sauna rocks to an adequate temperature Occasionally heating up the heater with stronger draught will burn off soot accumulation in the flue ducts and improve the heater s heating properties The heating up the sauna room depends on the
13. rocks care and quality e Use Saunatec approved prewashed rocks specifically intended for use in a sauna heater no ceramic Reload and depending on the frequency of use replace sauna rocks at least once a year Stones that do not heat up e Check the seal on chimney structures e Reduce the draught e The chimney will require a damper if multiple fireplaces are connected to it The other fireplace s are always closed with a damper e Cleaning hatch is leaking Side panels and rear parts are overheating e Check the seals on chimney and flue duct structures e Overheating can shorten the useful service life of the heater Ash drawer e Empty the ash drawer regularly before each heating Sauna steam water e We recommend the use of clean fresh tap water Winter storage e f the heater will be kept in the cold for the winter remove all heater stones and clean out the stone tray Empty the ash drawer and water tank Fire safety instructions Before installation check with your local fire safety authority on the most recent fire safety regulations in force Helo 20 SL Helo 28 SL ja Helo 38 SL The heater is installed in the hole made in a concrete or brick wall The measurements of the hole are marked in the instructions according to the heater type see the table on page The thickness of the wall can be maximum of 200 mm 7 7 8 When installing the heater please note the safety distances to chimney flue
14. tank must be emptied and dried if it will remain unused for an extended period of time This will prevent the build up of slime and or freezing Note Exercise extreme caution with boiling water in the hot water tank Boiling water and steam can seriously burn the skin Turning the handle on top of the heater 90 will release the water tank side from the stone tray wall This will slow down the boiling of water in the tank Remember to clean the water tank surfaces with stainless steel cleaner lron rich water may leave rust like spots Clean these with a stainless steel cleaner Ventilation in a wood burning sauna Good ventilation plays a crucial role in creating truly enjoyable comfortable sauna steam The traditional rule for natural ventilation is to bring in fresh air just above floor level near the heater and discharge the air as far from the heater as possible near the ceiling Because the heater itself is very effective at circulating air the exhaust port is primarily used to discharge moisture after taking a sauna Incoming air brought in near floor level runs up between the hot interior of the heater and its outer shell The heated air rises up through the grate on top of the heater and heats the sauna room Firewood needs a lot of air to burn a vacuum is formed in the firebox which together with the rising air currents pushes the heated air out to circulate in the sauna room Sauna rocks Only rocks specifically intended fo
15. through collar 115 mm Masonry connector Connecting flue duct 90 Connecting flue duct 60 land HELO and VIKI heaters Model R Flue port height to port center from on top w 60 90 upper tank 60 duct mounted behind connecting flue duct connecting flue tank 90 duct connecting duct Heat retaining ever ready HELO UKKOTONTTU 780 Soapstone heater HIIDENKIVI 590 1010 1630 aa Connecting flue duct 330 1000 mm Continuous heating HELO 12 HELO 16 DX HELO 20 SL HELO 20 BLACKLINE HELO 22 DX HELO 28 DX HELO 40 Heaters w water tank HELO 18 ES BLACKLINE HELO 22 ES DX HELO 28 ES DX Cauldron HELO PATA DX Connected from the top or rear Note These are measurements without adjustable feet Installation of heaters with front water tanks Permanently mounted to the front of the heater the 24 litre hot water tank is made of high quality noble steel The faucet can be installed either on the left or right side The unused faucet port is closed with a plug Note The faucet and plug seals must be installed against the outer wall of the tank not the inner wall Tips to ensure proper tank function e Never heat up the heater when the water tank is empty e The water tank is intended for heating bathing water do not put any corrosive deter gents into it e The water used in the tank should be high quality tap water pay attention to saline iron lime and humus content e The water
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