Kota Luosto, Luosto VS, Inari, Pallas
Contents
1. 2 lis ys max kg h NARVI Yritt j ntie 14 27230 Lappi e tel 358 0207 416 740 e fax 358 0207 416 743 e www narvi fi en Do not stack firewood in the firebox over 2 3 of its height Quantities of firewood are shown in clause 4 1 In the ignition phase the ash drawer can be kept open by 10 mm more than indicated in the table After igniting put the ash drawer back in the position as shown in the table In a sauna heater equipped with a water tank or in a sauna heater that is heated from another room firewood should not be burnt in the front part of the firebox in the extension but the firewood must be placed entirely on the grate of the firebox Do not forget that the sauna heater and its part become very hot during heating If you need to touch the parts of the sauna heater always use protective gloves When moving around in the sauna be careful because the floor and the ceiling of the sauna may be slippery Be careful water in the water tank of the sauna heater may be very hot One firebox of firewood burns approximately half an hour A good time for adding firewood is when there are still some blue flames on the coal in the firebox Before adding firewood you may even slightly smooth coal on the grate If firewood is added in the flames too early the temperature of fume gases increases Do not use the door to push firewood in the firebox In case the sauna is used or the sauna2. Made by NARVI Finland 4 UV Adr QNIN mapt p Y Suo UOISIOA NARVI Yritt j ntie 14 27230 Lappi e tel 358 0207 416 740 e fax 358 0207 416 743 e www narvi fi en Content 1 1 Technical data 4 2 Before you install the sauna heater 5 2 1 EEA 5 2 2 Gubstrate eene 5 2 3 Safety Cearances 5 2 4 Smoke flue 6 2 5 Ventilation 6 3 Installation and preheating of the saunaheater 7 3 1 2 22111 11 7 3 2 Regulation of the height 7 3 3 Connection with the amoketlue 7 3 4 Installation of abatch 7 3 5 Installation of a water tank faucet models with a water tank Luosto VS 7 3 6 Sauna heater stones 8 4 Using the sauna heater 9 4 1 Firewood ttt 9 4 2 Le ERR RR RR 9 4 3 Water tanks 10 4 3 Steam water 10 4 4 REMOVING the ashes 10 4 5 Maintenance of the sauna heater 10 4 6 Disposal 10 5 Soot fe 11 6 Frequently Asked Ouestons 11 T Warranty 11 NARVI Oy Yritt j ntie 14 27230 Lappi tel 358 0207 416 740 e fax 358 0207 416 743 e www narvi fi en Kota Luosto Luosto VS Inari Pallas Introduction Thank you for having chosen a Kota sauna heater To make the most of your sauna heater please read the manual carefully before you start installing and using it and keep the manual for future reference This user manual conta
3. CE marking When installing a modu lar smoke flue safety clearances stipulated in the installation manual of the smoke flue shall be followed The minimum rec ommended diameter of a modular smoke flue is 120 mm The weight of the smoke flue must not cause load on the sauna heater The sauna heater should be connected to a separate smoke flue A smoke flue made of bricks must be at least the so called half brick smoke flue 2 5 Ventilation Ventilation of the steam room should be sufficiently efficient and should function so that fresh incoming air is routed as close to the sauna heater as possible Also proper air circula tion has to be provided in the steam room during using the sauna so that air can exit from under the sauna bench or from under the door of the washing room sufficient gap Extraction fans working in the same room as the firebox may cause problems Incoming air inlets should be located so that they do not get blocked for instance because of snow A fire box needs combustion air in a volume of 6 10 m3 per kilo of fired wood The diameter of the ventilation opening must be at least 100 mm Forced air system should be built according to the design prepared by the designer of the heating water and ventilation systems After using the sauna there shall be a possibility to ventilate and dry the sauna rooms so that air exits via the upper part of the steam room NARVI Yritt j ntie 14 27230 Lappi e
4. heater is at its lowest and the burning time is longer If it soughs too much in the sauna heater reduce the draft To do this close the ash drawer halfway or completely This way heat reaches better in the sauna heater stones can store heat and you do not just heat up the flue A calm flame is a sign of a cor rect draft Avoid heating the sauna heater so that the channels of the stone compartment glow red for a long time because this will overload the firebox and the service life of the sauna heater will be reduced Overheating may also cause excessive heating of the smoke flue and cause a fire hazard The connec tive flue pipe must not be glowing red Figure 9 Figure 9 Properly stacked firewood The following table shows the recommended quantities of fire wood for different types of sauna heaters and positions of the ash drawer The values shown in the table meet the values of the nominal power pursuant to standard EN15821 In the test the size of the sauna was determined based on the maximum area for the given sauna heater and temperature of 90 C was achieved in the sauna During first times we recommend using less firewood for achieving the desired temperature than values presented in the table Maximum quantity of firewood per hour max kg h indicated in the table must not be exceeded 1 firebox of firewood sticks of firewood with a diameter around 5 cm length around 33 cm and weight around 0 5 kg 1 lis ys
5. heater is heated also after the recommended number of times firewood should be added as shown in the table firewood should not be added according to the quantities mentioned in the table A proper quantity for keeping heat is 1 2 logs approximately 1 kg of firewood every half an hour The ash drawer may be closed a bit If you add a big quantity of firewood the temperature of flue gases rises and this can damage the smoke flue and cause a fire hazard But do not heat continuously over 3 hours Thereafter the sauna heater must be allowed to cool down before the next heating In case the sauna will not be used any longer and coal is still glowing without flame extinguishing can be speeded up by increasing the draft For this open the ash drawer by 10 20 mm There is enough heat accommodated in the stones of the sauna heater to dry the sauna room In the ignition phase the closing pan must be fully open Before you close the closing pan after heating check that there is no glowing coal in the firebox Otherwise fumes may be released in the sauna Carbon monoxide is an odourless and colourless toxic gas If you have not used the sauna heater and smoke flue for a lon ger period or it is cold please check before use that the smoke flue is in proper order and that there are no corrosion damages on the sauna heater Start heating very slowly and with small quantity of firewood so that not to damage the smoke flue 4 3 Steam water Use nor
6. tel 358 0207 416 740 e fax 358 0207 416 743 e www narvi fi en 3 Installation and preheating of the sauna heater 3 1 Preheating Before use and arranging the stones the sauna heater must be heated to remove the protective agents Any protective films and stickers must have been removed before Preheat ing shall be carried out on a non combustible surface and outside since paint emits harmful solvents and smoke during heating Use of a connection pipe included in the delivery of the sauna heater in the upper joint improves draft during preheating 1 2 fireboxes of wood are sufficient for preheating After preheating and before arranging the stones loose cover material should be removed from the stone com partment of the sauna heater with a steel brush In case the external surface of the sauna heater is painted it should not be rubbed or wiped before the first heating The paint of the sauna heater will achieve sufficient strength only after the first heating Do not create steam during the first heating NB If the sauna heater is equipped with a water tank please check before preheating that the water tank faucet and safety plug are installed and that the tank is filled with clean water 3 2 Regulation of the height The legs of the sauna heater are adjustable and can be used for levelling the sauna heater and for adjusting the height There must be an air gap of at least 25b mm between the sauna heater and the floor Use a spiri
7. auna heater and structures made of combus tible materials Please observe the stipulated requirements regarding walls floors sauna benches other inventories and storage areas of firewood Structure Safety clearance Top surface 1280 mm Front surface 500 mm Side surface 300 mm Back surface 350 mm We recommend leaving 1000 mm maintenance area in front of the sauna heater Safety clearance as measured from the height of the door of the sauna heater The safety clearance can be reduced by 5096 when a single light protective screen is used and by 2596 when a double light protective screen is used Yet the gap between the sauna heater and the protective screen must always be at least 50 mm The safety clearance between the sauna heater and the ceiling can be reduced by maximum 300 mm when a single protective screen is used It is not permitted to use a double protective screen in the ceiling A single light protective screen can be made of a non combustible fibre reinforced cement plate that is at least 7 mm thick or a metal plate that is at least 1 mm thick which is attached to the wall sufficiently tight An air gap of at least 30 mm must be left between the surface to be protected and the board A double protective screen can be made of the two above mentioned boards Ain air gap of at least 30 mm must be left between the boards and the wall There must be a gap between the protective screeds and the floor and ceili
8. auna heater is installed To achieve the correct position of the faucet try a different number of gaskets in the connection of the faucet and water tank The delivery of a Kota Luosto VS water tank includes a casing set consisting of five adjustment plates made of galvanised steel Install these on the internal wall of the tank To adjust warming of water remove the required number of casing sets Figure 10 Figure 10 Installation of casing sets 3 6 Sauna heater stones We recommend that you use Kota olive dolerite stones Natu ral stones are not suitable to be used as sauna heater stones 10 15 cm Before using the stones they must be washed to eliminate any impurities Bigger stones are placed in the bottom of the stone compartment and the rest are piled sparsely so that air can move freely between the stones Flat stones shall be stacked in upright position The stones must not block air openings and stones must not be stacked over the top surface of the sauna heater The recommended quantity of stones in the sauna heater is shown in clause 1 1 The use of stones with a regular shape rectangular etc and light or ceramic stones is forbidden because of a risk of too tight stacking NARVI Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 e fax 358 0207 416 743 e www narvi fi en 4 Using the sauna heater 4 1 Firewood Both hardwood and softwood can be used to heat the sauna heater The use of chipboa
9. e sauna heater have to be re arranged once per year and replaced every other year Cracking stones col lapse and fall lower some stones will erode Remove eroded and broken stones Due to insufficient maintenance the sauna heater needs more time for heating which in its turn causes load on the structure of the sauna heater The enamel surface of the sauna heater should be cleaned regularly with a damp cloth Also the water tank of the sauna heater should be regularly cleaned Use only clean water to fill the tank If there is a dan ger that water can freeze the water tank should be emptied 4 6 Disposal For disposal take the sauna heater to a public waste recy cling centre NARVI Yritt j ntie 14 FI 27230 Lappi e tel 358 0207 416 740 e fax 358 0207 416 743 e www narvi fi en 5 Soot fire IN CASE OF SOOT FIRE ALSO IF IT HAS ALREADY BEEN EXTINGUISHED ALWAYS INFORM THE EMERGENCY CENTRE If you detect soot fire in the smoke flue close the ash drawer and the door of the firebox immediately After soot fire and before the next use of the sauna let a chimneysweeper check the condition of the smoke flue and the sauna heater 6 Frequently Asked Questions The sauna heater is drafting poorly e The sauna heater has not been used in a long time the smoke flue and sauna heater are damp e The sauna heater is not receiving sufficient air there is a downdraft in the sauna caused by ventilation e The sauna heater ha
10. he sauna heater cut through three steel wires of a stone basket with a backsaw for example In this case the distance of the bottom edge of the connection flue from the floor is 550 mm NARVI Yritt j ntie 14 27230 Lappi e tel 358 0207 416 740 e fax 358 0207 416 743 e www narvi fi en 2 Before you install the sauna heater Before installing and using the sauna heater make sure you are thoroughly familiar with the requirements for installing the sauna heater in the steam room In case of questions and for additional information do not hesitate to contact the Rescue Board or a construction supervision authority When installing fireboxes all local laws have to be followed including those referring to local and European standards 2 1 Steam room If the walls of a steam room are made of uncovered glass brick or concrete add 0 8 1 5 m per square meter of such wall and the final choice of the heater shall be made based on the sum of the area If the heater is installed in a sauna that is normally not heated or the sauna is made of massive logs multiply the sauna area by 1 5 and choose the heater based on this The recommended minimum area of a steam room is indicated in clause 1 1 Please follow the values for the mini mum area stipulated for a steam room We recommend choosing a sauna heater with slightly more power to ensure proper heating of the sauna and to avoid heating the sauna heater to its upper limit S
11. i tel 358 0207 416 740 e fax 358 0207 416 743 e www narvi fi en costs A receipt from the company selling the product serves as proof of warranty The client must check the goods immediately after delivery The client must submit a written notice of claims to the sup plier within two 2 weeks of discovering the defect or the mo ment when the defect should have been discovered Do not modify the structure of this product With this product you can only use manufacturer recommended accessories Failure to comply with the manual or fire safety regulations can result in a fire or damage to the sauna heater More detailed information about the fire safety regulations can be obtained from the regional branch of the rescue board for instance The product shall be carefully inspected Improper use of the product is for instance wrong adjustment of the draft too large a quantity of firewood burnt in the firebox too long heating time wrong arrangement of stones too much or too tight and use of salty water for instance sea water The warranty does not cover damages caused by improper use of the sauna heater Narvi Oy 12 EN 15821 2010 Multi firing sauna stoves fired by natural wood logs for space heating in residential buildings Kota Luosto Luosto VS Inari Pallas Fire safety initiation risk to adjacent elements including declared safety Back distances to combustible Side materials Ceiling Emission of combu
12. ins the technical data of your sauna heater and installation use and maintenance instructions The products are meant only to be used as a sauna heater and for heating the sauna Do not modify the design of the sauna heater and use only spare parts and accessories recommend ed by the manufacturer The data plate included in the delivery of the sauna heater must be glued on the sauna heater prefer ably on the lower part of the cover of the sauna heater Do not heat the sauna heater if you lack sufficient knowledge if you are not allowed to use a sauna because of your health condition or you are under the influence of substances caus ing intoxication Sauna heaters must not be used by underage people Do not leave children in the sauna without supervision A sauna is not meant for drying clothes 1 1 Technical data Kota kiuas Luosto Luosto VS Inari Pallas Height mm 750 750 770 780 Width mr swo 8 500 Diameter of the connective flue mm 119 119 119 119 Distance of the bottom edge of the 550 840 840 Ir 550 connective flue from the floor mm Central point of the connection from the above from the rear edge of the sauna 115 165 140 125 heater mm Weight of the stones 10 15 cm kg 35 Weight of the stones 5 10cm xa 0 7 a 8 20 Thickness of the cover of the furnace 6 mm to be connected above the sauna heater with a smoke flue by means of 90 connective flue to make a connection behind t
13. lightly stronger power ensures a longer lifetime of the sauna heater and pro vides better steam thanks to a greater quantity of stones 2 2 Substrate A firebox must be installed on the floor with sufficient load bearing capacity The durability of the floor must be checked especially carefully when the sauna heater is installed on a wooden floor The weight of the sauna heater is shown in clause 1 1 CONCRETE FLOOR The sauna heater may be installed directly on a concrete floor which is at least 50 mm thick If underfloor heating cables or pipes are located under the sauna heater a Kota installation base must be used to protect them from the sauna heater s thermal radiation FLOOR MADE OF COMBUSTIBLE MATERIAL OR A TILED FLOOR UN DERFLOOR HEATING A Kota installation base must be installed under the sauna heater which will protect the floor moisture barrier and un derfloor heating pipes or cables from the thermal radiation of the sauna heater 2 3 Safety clearances When installing the sauna heater safety clearances must be taken into account Ignorance of safety clearances causes fire hazard If required additional information can be obtained from the regional branch of the rescue board NARVI Oy Yritt j ntie 14 27230 Lappi tel 358 0207 416 740 e fax 358 0207 416 743 e www narvi fi en 2 3 1 Structure made of combustible materials The safety clearances are the minimum allowable distances between the s
14. mal domestic water for steam water Quality requirements for domestic water e humus content lt 12 mg l e iron content lt 0 2 mg l e calcium content lt 100 mg l e manganese content lt 0 05 mg l Do not use sea water or other salty water Also do not use wa ter containing chlorine The warranty of the sauna heater does not cover damages caused by the use of unsuitable steam water Do not throw water on the stones if you yourself or somebody else is right next to the sauna heater Hot water steam may cause burns 4 4 Removing the ashes The ash drawer must be emptied every time before heating the sauna heater The ash drawer must be emptied immediately if ashes fill more than half of the drawer Otherwise the airflow through the firebox grate will be hindered which will shorten the life of the grate The ash drawer must be emptied in a non combustible con tainer for instance metal bucket after ash has cooled down Do not leave the ash bucket standing by the wall for instance on the terrace If the smoke flue is equipped with a closing pan it should be opened for the time the ash is removed Dust will escape with the draft 4 5 Maintenance of the sauna heater Besides removing the ashes and having the chimney annu ally cleaned by a chimneysweep the sauna heater requires no other maintenance To open the cleaning hatch of the sauna heater the upper stones have to be removed from the sauna heater The stones of th
15. nective flue too deep in the smoke flue because this would hinder the draft Any leaks in the con nective flue also reduce the draft therefore the connections must be sealed with fireproof sealing material Leakage in the connective flue causes combustion gases formed in the sauna heater to ignite in the flue The connection joint of the flue and the sauna heater must be 25 mm The diameter of the connective flue of the sauna heater and the height from the floor are shown in clause 1 1 Please take into account the clearance distance of the modu lar smoke flue see the manufacturer s instructions 3 4 Installation of the door Figure 7 Figure 7 Open the door and raise the hinge pin up so it comes out of the bottom hinge barrel Hold onto the door securely and turn the bottom part of the pin and turn the bottom end of the pin up enough 2 that you can pull the pin down 3 and the pin and door come apart For installation proceed in reverse order First push the upper edge of the door in its place and thereafter push the pin through the upper eyelet Thereafter turn the door and pin in their places from below and let the pin into the bottom eyelet The pin is correctly installed when the wider areas of the pin are facing down In this case the pin cannot move away from its place Door installation is easier when you use long flatnose pliers 3 5 Installation of a water tank Luosto VS The water tank faucet is installed when the s
16. ng so that air can circulate and cool the gaps between the boards 120 mm masonry structure at a distance of 30 mm from the surface to be protected corresponds to a double protective screed We recommend using factory made double Kota pro tective screeds Protecting a wall made of combustible material Figure 3 If the sauna heater is installed a floor made of combustible materials an installation base must be used A piece of sheet metal must be installed in front of the installa tion base which extends at least 100 mm over the sides of the heater hatch and at least 400 mm in front of the sauna heater The sheet metal edges facing the sauna heater must be turned up so that coal cannot get under the installation base fora aS X Please observe that the safety clearance of an uninsulated smoke flue from structures made of combustible materials is 1000 mm or any other distance stipulated in the manufac turer s instructions I 2 3 2 Non combustible structure If the wall is masonry or other structure classified as non com bustible it is sufficient to have a 50 mm air gap between the upright surfaces and the wall 2 4 Smoke flue A smoke flue of the sauna heater must meet the requirements of class T600 irrelevant of the material of the smoke flue The minimum recommended draft of the smoke flue is 12 Pa A modular smoke flue must meet the requirements of class T600 and provided with
17. rd fibreboard painted or impreg nated wood waste or plastic is prohibited To ensure clean burning and the largest possible efficiency the wood must be dry The moisture content of the wood must be less than 20 Usually good firewood is sticks of wood the diameter of which is around 5 cm length around 33 cm and weight around 0 5 kg Use of liquid fuel is strongly forbidden also during firing 4 2 Heating Before heating make sure that there is no combustible mate rial within the safety clearances Also make sure that the ash drawer and fire grate are clean and if the sauna heater is pro vided with a water tank that it is filled with clean water Check if there is sufficient draft in the smoke flue If you hesitate re garding the draft check it by burning a small quantity of water in the firebox first During heating the door of the firebox must be closed and the water tank must be filled with water The sauna heater must not be covered with anything To start heating pile firewood over a sufficiently wide area and ignite it from above For ignition you may use birch bark or paper Ignition aid should be placed between the upper fire wood and it can be topped with some thinner wood sticks or firewood see drawing 9 Igniting from above reduces pollu tion and ensures cleaner burning The power of the sauna heater can be regulated by the ash drawer If the ash drawer is closed the power of the sauna Heating of the sauna
18. s not been cleaned in a long time e The ash drawer is closed or full of ashes e Leakage in the connective flue The sauna does not heat up properly e The firewood is damp e The sauna heater has insufficient power e The sauna heater or smoke flue is drafting poorly e The stones of the sauna heater are dirty or crumbling or stacked too tightly e There are too many stones or there are too many small stones The sauna heater smells e The sauna heater has not been properly heated the first time it was done e The stones of the sauna heater were not washed before loading e Fat or other dirt has accumulated on the stones e Steam water is not clean 7 Warranty Pursuant to consumer protection legislation Kota sauna heater s warranty period is two years The warranty covers normal family use provided use installation and mainte nance meet the requirements stipulated in the instructions The warranty period starts form the moment that the goods are delivered to the end user The supplier is not liable in any way for any defects within the framework of the warranty or other defects that appear later than two 2 years after the delivery of the goods to the client The supplier may decide to either repair the defective goods or replace the defective goods at its own direction The warranty does not cover possible trans port unloading or installation costs or other corresponding NARVI Oy Yritt j ntie 14 27230 Lapp
19. stible products Surface temperature Release of dangerous substances NARVI Oy reserves the right to any changes to technical details Cleanability Flue gas temperature Mechanical resistance Thermal output and Energy efficiency as carbon monoxide emission at 13 96 Pass 0 11 96 total efficiency Pass 69 906 flue draught 12 Pa thermal output 16 kW i e nominal space heating output refuelling loads 8 5 kg Durability Pass NARVI Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 e fax 358 0207 416 743 e www narvi fi en
20. t level to check if the sauna heater is level 3 3 Connection with the stack Connecting the sauna heater with the smoke flue e There are two possibilities to connect the connective flue of Kota Luosto and Kota Pallas sauna heaters either from the back or top of the sauna heater The connective flue of a Kota Luosto VS sauna heater can be connected only from the top of the sauna heater e The connective flue of Kota Inari can generally be con nected from the top of the sauna heater But to connect the sauna heater from the back you can make a hole in it For this cut through the three wires of the stone basket with a backsaw Carefully compact the flue connections with a fireproof seal ant Any leaks in the connective flue also reduce the draft Check that the cover of the unconnected connective flue and cleaning hatch of the smoke pipes is securely in place Seal the unused opening with the supplied cover The sauna heater comes with a short smoke flue connection pipe which can be used to connect the sauna heater s smoke flue from the back If the connection with the smoke flue is done from NARVI Yritt j ntie 14 FI 27230 Lappi e tel 358 0207 416 740 e fax 358 0207 416 743 e www narvi fi en the above a Kota connective flue or Kota smoke flue must be used In case of connection from the above a Kota smoke flue tank for heating water or a Kota stone basket can be installed around the connective flue Do not push the con
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