HARVIA M1 Woodburning Stove Instruction Manual
- August 16, 2024
- HARVIA
Table of Contents
HARVIA M1 Woodburning Stove
Congratulations on your choice! The Harvia sauna stove works best and serves
you longest when it is used and maintained according to these instructions.
Read the instructions carefully before installing or using the stove. Keep the
instructions for future reference.
| M1 WKM11 M2 WKM2 M3 WKM3 M3 SL WKM3SL| 20 Pro
WK200
20 Duo WK200SLUX 20 RS Pro WK200RS 20 LS Pro WK200LS
| 20 ES Pro WK200ES 20 ES Pro S WK200ESST| 20 Boiler WK200B 20 SL WK200SL
20 SL Boiler
WK200BSL
| Classic 140 WKC140| Classic 220
WKC220
Classic 220 Duo WKC220LUX
| Premium
WK200S
Premium VS
WK200SS
---|---|---|---|---|---|---|---
Sauna room volume (m³)| 6–13| 8–20| 8–20| 8–20| 6-13| 8–20| 8–20
Required temperature class of chimney|
T600
|
T600
|
T600
|
T600
|
T600
|
T600
|
T600
Diameter of connection opening (mm)|
115
|
115
|
115
|
115
|
115
|
115
|
115
Stone quantity (max. kg)| 30| 40| 40| 40| 40| 40
50 (Duo)
| 40
Stone size (cm)| Ø10–15| Ø10–15| Ø10–15| Ø10–15| Ø10–15| Ø10–15| Ø10–15
Weight (kg)|
45
| 60
80 (Duo)
65 (RS/LS Pro)
|
75
| 65 (B)/70 (SL)/
75 (BSL)
| 49
54 (SL)
| 65
80 (Duo)
| 65
70 (VS)
Width (mm)|
390
| 430
580 (RS/LS
Pro)
|
430
|
430
|
445
|
475
| 445
590 (VS)
Depth + fire chamber extension (mm)| 430
+210 (SL)
| 510
+280 (Duo)
|
650
| 510
+210 (SL/BSL)
| 470
+210 (SL)
| 515
+280 (Duo)
|
530
Height + adjustable legs (mm)| 715 –| 760
+ 0–30
| 760
+ 0–30
| 760
+ 0–30
| 770
+ 0–30
| 800
+ 0–30
| 780
+0–30
Thickness of fire chamber cover (mm)| 5| 10| 10| 10| 5| 10| 10
Maximum length of firewood (cm)|
35
|
39
|
39
|
39
|
35
|
39
|
39
Diameter of firewood (cm)| 8–15| 8–15| 8–15| 8–15| 8–15| 8–15| 8–15
Water container volume (l)| –| –
30 (RS/LS Pro)
| 20| –| | –| –
30 (VS)
| Linear 22 ES WK220CES| Linear 16 WK160C 16 WK160| Linear 22 WK200C 22 WK220| Linear 22 RS
WK220CRS
Linear 22 LS
WK220CLS
| 26 Pro
WK260
| 36 WK360
36 Duo
WK360SLUX
| Classic 280 WKC280| Linear 28 WK280C
---|---|---|---|---|---|---|---|---
Sauna room volume (m³)| 8–22| 6–16| 8–20| 8–22| 10–26| 14–36| 10–26| 10–28
Required temperature class of chimney|
T600
|
T600
|
T600
|
T600
|
T600
|
T600
|
T600
|
T600
Diameter of connection opening (mm)|
115
|
115
|
115
|
115
|
115
|
115
|
115
|
115
Stone quantity (max. kg)| 40| 36| 40| 40| 50| 60| 60| 50
Stone size (cm)| Ø10–15| Ø10–15| Ø10–15| Ø10–15| Ø10–
15
| Ø10–15| Ø10–15| Ø10–15
Weight (kg)| 72| 46| 60| 64| 65| 70
80 (Duo)
| 70| 68
Width (mm)| 450| 420| 430| 550| 430| 510| 475| 450
Depth + fire chamber extension (mm)| 675| 450| 485| 510| 510| 510
+ 280 (Duo)
| 515| 510
Height + adjustable legs (mm)| 770
+ 0–30
| 735 –| 755
+ 0–30
| 770
+ 0–30
| 810
+ 0–30
| 810
+ 0–30
| 850
+ 0–30
| 850
+ 0–30
Thickness of fire chamber cover (mm)| 10| 5| 10| 10| 6| 6| 6| 6
Maximum length of firewood (cm)|
39
|
35
|
39
|
39
|
39
|
39
|
39
|
39
Diameter of firewood (cm)| 8–15| 8–15| 8–15| 8–15| 8–15| 8–15| 8–15| 8–15
Water container volume (l)| 30| –| –| 30| –| –| –| –
Table 1. Technical Data
Declaration of Performance
| DoP02M3| DoP16Linear16| DoP15Linear22| DoP0120Pro|
DoP0726Pro| DoP0836| DoP19Linear28
---|---|---|---|---|---|---|---
Product type
Declared performance – Essential characteristic
| M1 WKM11 M2 WKM2 M3 WKM3 M3 SL WKM3SL
Classic 140
WKC140
| Linear 16 WK160C 16 WK160| Linear 22 WK200C 22 WK220
Linear 22 ES
WK220CES
Linear 22 RS
WK220CRS
Linear 22 LS
WK220CLS
| 20 Pro WK200
20 ES Pro WK200ES
20 ES Pro S
WK200ESST
20 RS Pro WK200RS
20 LS Pro WK200LS
20 Boiler WK200B
20 SL WK200SL
20 SL Boiler
WK200BSL
20 Duo WK200SLUX
Classic 220 WKC220
Classic 220 Duo
WKC220LUX
Premium WK200S Premium VS WK200SS
| 26 Pro
WK260
Classic 280
WKC280
| 36 WK360
36 Duo
WK360SLUX
| Linear 28
WK280C
Fuel Combustible| Wood Bois| Wood Bois| Wood Bois| Wood Bois| Wood Bois| Wood
Bois| Wood Bois
Fire safety
(initiation, risk to adjacent elements)
| ****
p
| ****
p
| ****
p
| ****
p
| ****
p
| ****
p
| ****
p
– safety distances to combustible materials| ****
3.1.3.
| ****
3.1.3.
| ****
3.1.3.
| ****
3.1.3.
| ****
3.1.3.
| ****
3.1.3.
| ****
3.1.3.
Emission of combustible products| p| p| p| p| p| p| p
Surface temperature| p| p| p| p| p| p| p
Release of dangerous substances| NPD| NPD| NPD| NPD| NPD| NPD| NPD
Cleanability| p| p| p| p| p| p| p
Flue gas temperature*| 374 °C| 416 °C| 506 °C| 403 °C| 422 °C| 453 °C| 409 °C
Mechanical resistance| p| p| p| p| p| p| p
Sauna room heating output| 16,5 kW| 17,9 kW| 26,1 kW| 24,1 kW| 26,6 kW| 31 kW|
22 kW
– carbon monoxide emission at 13 % O2| p (8146
mg/m3)
| p (8541 mg/ m3)| p (7457 mg/ m3)| ****
p (9782 mg/m3)
| p (10033
mg/m3)
| p (11256
mg/m3)
| p (8710 mg/ m3)
– carbon monoxide emission (%) at 13 % O2| ****
p (0,65 %)
| ****
p (0,68 %)
| ****
p (0,60 %)
| ****
p (0,78 %)
| ****
p (0,8 %)
| ****
p (0,9 %)
| ****
p (0,7 %)
– total efficiency| p (69 %)| p (66,1 %)| p (62,3 %)| p (68 %)| p (67 %)| p
(66 %)| p (69 %)
– flue draught*| 12 Pa| 12 Pa| 12 Pa| 12 Pa| 12 Pa| 12 Pa| 12 Pa
– ignition load| 2,7 kg| 3,5 kg| 3,5 kg| 3,0 kg| 5 kg| 6,4 kg| 4,0 kg
– refuelling loads| 3,2 kg| 4,0 kg| 5,5 kg| 4,5 kg| 5,5 kg| 7,2 kg| 6,5 kg
– ash box gap (after ignition phase)| ****
10 mm
| ****
20 mm
| ****
30 mm
| ****
20 mm
| ****
38 mm
| ****
50 mm
| ****
45 mm
Durability| p| p| p| p| p| p| p
Flue gas mass flow*| 14,5 g/s| 15,9 g/s| 22,7 g/s| 19,6 g/s| 21,1 g/s| 23,5
g/s| 16,6 g/s
GENERAL
Choose the stove model carefully. A stove with too low output must be heated
longer and more intensely, which will shorten the stove’s life span.
Please note that non-insulated wall and ceiling surfaces (such as brick,
glass, tile and concrete surfaces) increase the output requirement of the
stove. For every square meter of such wall and ceiling surface you should
calculate an additional 1.2 m3 volume. If the sauna walls are made of massive
log, the volume must be multiplied by 1.5. Examples:
- A 10 m3 sauna room with a brick wall 2 m high and 2 m wide is equivalent to a sauna room of approximately 15 m3.
- A 10 m3 sauna room with a glass door is equivalent to a sauna room of approximately 12 m3.
- A 10 m3 sauna room with massive log walls is equivalent to a sauna room of approximately 15 m3.
The dealer or our factory representative can assist you in choosing the stove if needed. You can also visit our website www.harviasauna.com for further details.
Stove Parts
- A. Upper connection opening
- B. Rear connection opening
- C. Soot opening
- D. Stove door
- E. Ash box
INSTRUCTIONS FOR USE
Read the instructions carefully before using the stove.
Warnings
- Staying in the hot sauna for long periods of time makes the body temperature rise, which may be dangerous.
- Keep away from the stove when it is hot. The stones and outer surface of the stove may burn your skin.
- Never throw water on the stones when there are people near the stove, because hot steam may burn their skin.
- Keep children away from the stove.
- Do not let young, handicapped or ill people bathe in the sauna on their own.
- Consult your doctor about any health-related limitations to bathing.
- Consult your child welfare clinic about taking little babies to the sauna.
- Be very careful when moving in the sauna, as the platform and floors may be slippery.
- Never go to a hot sauna if you have taken alcohol, strong medicines or narcotics.
- Never sleep in a hot sauna.
- Sea air and a humid climate may corrode the metal surfaces of the stove.
- Do not hang clothes to dry in the sauna, as this may cause a risk of fire.
Preparing the Stove for Use
Perform the first heating outdoors. The stove body has been painted with
protective paint, which will vaporise during the first heating. This will
cause the stove body to emit smoke. When the smoking stops, the stove is ready
for normal use. Remove leftover paint mechanically e.g. with a wire brush and
a vacuum cleaner.
Install the smoke pipes ( 3.4.) for draught. This will cause odours to
vaporize from the smoke pipes as well.
The outer casing has been painted with heat-resistant paint, which reaches its
final cured state during the first heating. Prior to this, rubbing or sweeping
the painted surfaces of the stove must be avoided.
- The sauna stones should not be placed in the stove before the first heating. Place the stones in the stove only when the stove has cooled completely after the first heating.
- Stove with a water container: Clean the water container carefully prior to use. Fill up the water container prior to the first heating.
Do not throw water on the stove during first heating. Painted surfaces can get damaged.
Burning Material
Dry wood is the best material for heating the stove. Dry chopped firewood
clinks when it is knocked together with another piece. The moisture of the
wood has a significant impact on how clean the burning is as well as on the
efficiency of the stove. You can start the fire with birch bark or newspapers.
The thermal value of wood differs from one type of wood to another. For
example, you must burn 15 % less beech than birch to obtain the same heat
quantity. If you burn large amounts of wood, which has a high thermal value,
the life span of the stove will shorten!
Do not burn the following materials in the stove:
- Burning materials that have a high thermal value (such as chipboard, plastic, coal, brickets, pellets)
- Painted or impregnated wood
- Waste (such as PVC plastic, textiles, leather, rubber, disposable diapers)
- Garden waste (such as grass, leaves)
- Liquid fuel
Sauna Stones
- The stones should be 10–15 cm in diameter.
- Only proper stones meant for the specific purpose should be used as sauna stones. Peridotite, olivine-dolerite and olivine are suitable stone types. Stones found in nature may contain harmful substances, such as iron pyrite, and therefore should not be used.
- Wash off dust from the stones before piling them into the stove.
Figure 2. Piling the stones
- Place the larger stones at the bottom and the smaller ones on the top.
- Make sure that air circulates between the stones.
- Do not place stones against the frame around the stone space or on top of it.
- Do not place stones between the grille and the stove body!
Heating the Stove
Before heating the stove make sure that there are no unnecessary items in
the sauna or inside the stove’s safety distances. Extractor fans when operated
in the same space as the stove, may cause problems.
-
Empty the ash box.
-
Place the firewood into the fire chamber, leaving enough room for the combustion air to flow between the firewood. Place the biggest firewood on the bottom and the smaller ones on the top. Use firewood with a diameter of 8–12 cm (consider the ignition load value, table 2).
-
Place the kindling on the top of the firewood. By starting the fire on the top of the firewood, fewer emissions are produced.
-
Fire the kindling and close the door. The amount of draught can be adjusted by opening the ash box. The stove is not intended for use with the stove door open.
Note! The handles become hot while in use. Use the supplied tool for opening and closing the stove door and ash box (figure 3).- When heating the stove, it is generally a good idea to at first keep the ash box slightly open. This ensures that the fire starts burning properly.
- Excessive draught will cause the stove body to become red-heated, which will shorten its life span considerably.
- During bathing, and when the sauna room is already heated, the ash box can be closed to keep down the fire and decrease wood consumption. See the optimal ash box gap in table 2. Measure the gap using the holes in the sides of the ash box. The holes are 5 mm long and the distance between the hole edges is 5 mm.
-
If necessary, place more firewood into the fire chamber when the ember is dying down. Use firewood with a diameter of 12–15 cm. It takes only a couple of pieces of wood to maintain the bathing temperature (consider the refuelling loads value, table 2).
Prolonged, intense heating may cause risk of fire!
- Excessive heating (several full loads in a row, for example) will make the sauna room, stove and the chimney overheat. Overheating shortens the stove’s life span and may cause risk of fire.
- A good rule of thumb is that temperatures of over 100 ºC are too high in a sauna.
- Observe the correct wood quantities noted in the heating instructions. Let the stove, chimney and sauna room cool down if necessary.
Sauna Water
The water that is thrown on the stones should be clean household water. Make
sure the water is of high enough quality, because water containing salt, lime,
iron or humus may prematurely corrode the stove. Especially seawater will
corrode the stove very rapidly. The following quality requirements apply to
household water:
- humus content <12 mg/litre
- iron content <0.2 mg/litre
- calcium content <100 mg/litre
- manganese content <0.05 mg/litre
Throw sauna water on the stones only. If you throw water on the hot steel surfaces, they may blister due to the large temperature variation.
Maintenance
Stove
- The ash box should always be emptied before heating the stove so that the combustion air that is lead through the box would cool off the fire grate and lengthen its life span. Get a metal container, preferably standing model, to put the ash in. As the removed ash may include hot embers, do not keep the ash container close to combustible material.
- Soot and ashes gathered in the smoke canals of the stove should be removed occasionally through the soot openings ( 1.1.).
- Due to large variation in temperature, the sauna stones disintegrate in use. Therefore, they should be rearranged at least once a year or even more often if the sauna is in frequent use. At the same time, any pieces of stones should be removed from the stone space, and disintegrated stones should be replaced with new ones.
- Wipe dust and dirt from the stove with a damp cloth.
Chimney
- The chimney and connection pipes should be swept at regular intervals and especially if the stove has not been used in a long time.
- Due to incomplete burning of fuel and failure of sweeping the chimney, the soot build-up in the flue may ignite. Actions to be taken in case of a chimney fire:
- Close the ash box, stove door and damper plate (if installed).
- Contact local fire authority.
- Do not try to extinguish fire using water.
- After a sootfire, a chimney sweeper must check the stove and the flue before use.
Troubleshooting
There is no draught in the flue. Smoke comes into the sauna.
- There are leaks in the flue connection. Seal the connection ( 3.2.2.).
- The brick flue is cold.
- There is low pressure caused by an extractor fan or another device in the room. Make sure there is enough air to compensate.
- Several fireplaces are used at the same time. Make sure there is enough air to compensate.
- The ash box is full.
- The smoke canals of the stove are blocked ( 2.7.).
- The flue connection pipe is too deep in the chimney ( 3.2.2.).
The sauna does not heat up.
- The sauna is too big in relation to the stove’s heating capacity (see table 1).
- There is lots of non-insulated wall surface in the sauna ( 1.).
- The burning material is moist or its quality is otherwise low ( 2.3.).
-
- The smoke canals of the stove are blocked ( 2.7.).
The stove stones do not heat up.
- The sauna is too small in relation to the stove’s heating capacity ( 1.).
- The flue does not have a good draught.
- The burning material is moist or its quality is otherwise low ( 2.3.).
- The smoke canals of the stove are blocked ( 2.7.).
- Check the stone placement ( 2.4.). Remove the small pieces of stone and stones that are less than 10 cm in diameter from the stone space. Replace the disintegrated stones with large and undamaged ones.
The stove emits smell.
- See section 2.2.
- The hot stove may emphasize odours mixed in the air that are not, however, caused by the sauna or the stove. Examples: paint, glue, oil, seasoning.
Wooden surfaces of the sauna room blacken
It is perfectly normal for the wooden surfaces of the sauna room to blacken
in time. The blackening may be accelerated by sunlight, heat from the stove,
protective agents on the walls (protective agents have a poor heat resistance
level), fine particles disintegrating from the sauna stones which rise with
the air flow and smoke that enters the sauna, for example, when adding
firewood.
INSTRUCTIONS FOR INSTALLATION
Before Installation
Before installing the stove make sure that all safety distance requirements
are fulfilled. There shall be no electrical devices, wires or inflammable
materials within the established safety distances around the stove.
- All local regulations, including those referring to national and European standards need to be complied with when installing the appliance.
- The stove is not suitable for installation in a shared flue system.
- The local fire authorities in charge of approving the installations can provide more detailed information about fire safety regulations.
Ventilation of the Sauna Room
The ventilation of the sauna room should be arranged as follows:
Gravity exhaust ventilation (figure 4)
A. The fresh air inlet must be placed close to the floor near the stove and
B. its outlet should be as far as possible from the stove and near the
ceiling. The stove itself circulates air effectively; the purpose of the
outlet is mainly to remove moisture from the sauna after bathing.
Mechanical exhaust ventilation (figure 5)
A. The fresh air inlet must be approx. 500 mm above the stove and
B. the outlet should be close to the floor, for example, below the bench.
Protecting the Floor See figure 6.
A. Concrete floor without tiles. The stove can be installed on a concrete
floor without any specific safety measures, if the concrete is at least 60 mm
thick. Make sure that there are no wires or water pipes in the concrete cast
below the stove.
B. Tile floor. The floor glues and plasters and waterproof materials used
below the tiles are not resistant to the heat radiation of the stove. Protect
the floor with the Harvia protective bedding ( 3.4.) or similar heat radiation
protection.
C. Floor made of inflammable material. Protect the floor with the Harvia
protective bedding ( 3.4.). If the floor in front of the stove door is made of
inflammable material, install floor protection made of nonflammable material.
The stove shall be installed on a floor with an adequate load-bearing
capacity. If the existing floor does not meet this prerequisite, suitable
measures (e.g. load distributing plate) shall be taken to achieve it.
Light-coloured floor materials will become dirty from the ash, particles of
stone and metal flakes that fall from the stove. Use floor coverings made of
dark materials and dark joint grouts.
Safety Distances See figures 7 and 8.
- Ceiling. The minimum safety distance between the stove and the ceiling (A).
- Walls and benches made of inflammable mate-rials. The minimum safety distances to inflammable materials: on either side (B), behind the stove (C), in the front (D).
- Masonry walls (E). Leave 50 mm between the stove and walls, provided that the air can circulate in front and to one side of the stove. If the stove is installed in a recessed wall, leave 100 mm between the stove and walls for the air circulation.
Installing the Stove
Adjustable Legs (excluding the models M1/M2/M3/M3 SL/Linear 16/16)
The adjustable legs enable the stove to be installed firmly on an inclined
floor. The adjustable range is 0–30 mm. Unscrew the adjustable feet to an
extent that allows them to be adjusted using a wrench (17 mm) when the stove
is in position.
The adjustable feet could scratch the floor surface if the stove is moved on
the floor.
Connecting the Stove to a Masonry Flue
Make an opening in the fireproof wall for the flue connection. Notice that the
opening has to be at the correct height, if you intend to use, for instance, a
protective bedding. The hole should be slightly larger than the flue
connecting pipe. A suitable gap around the connection pipe is ca. 10 mm. It is
advisable to round off the inner corners of the flue opening to ensure that
the combustion gases can flow freely to the flue. Additional accessories are
available to make the installation easier ( 3.4.).
M1, M2, M3/SL, 20 Pro/SL, 20 ES Pro/S, 20 Boiler/SL, Classic 140/220/280, Premium/VS, 20 RS/LS Pro, Linear 16/22/28, Linear 22 RS/LS/ES, 16/22: Connecting the stove to a masonry flue via the rear connection opening (figure 9)
- Bend the cover hatch downwards (M1/M2/M3, Classic 140/220/280, Premium/Premium VS, Linear 16, 16 only). Attach the flue connection pipe to the rear connection opening. Ensure that the pipe fits tightly in place.
- Push the stove into place. Do not block the flue by pushing the flue connection pipe too far into the flue. If necessary, shorten the pipe.
- Seal the flue connection pipe to the opening in the fireproof wall, for example, by using fireproof mineral wool. Make sure that the flue connection is tightly sealed. Add more fireproof mineral wool if necessary.
Connecting the stove to a masonry flue via the upper connection opening
(figure 10)
You will need an angled smoke pipe (45° or 90°) for the upper connection (
3.4.).
- Open the cover hatch of the rear connection opening (M1/M2/M3, Classic 140/220/280, Premium/Premium VS, Linear 16, 16 only). Bend the holder with a screwdriver.
- Move the blocking plug from the upper connection opening on the rear connection opening.
- Bend the holder with a screwdriver. Turn the cover hatch back up and lock it in its position with a screw (M1/M2/M3, Classic 140/220/280, Premium/Premium VS, Linear 16, 16 only).
- Attach the flue connection pipe to the upper connection opening. Ensure that the pipe fits tightly in place.
- Push the stove in place. Do not block the flue by pushing the flue connection pipe too far into the flue. If necessary, shorten the pipe.
- Seal the flue connection pipe to the opening in the fireproof wall, for example, by using fireproof mineral wool. Make sure that the flue connection is tightly sealed. Add more fireproof mineral wool if necessary.
Connecting the Stove to a Harvia Steel Chimney
A CE-marked Harvia steel chimney can be used to remove combustion gases. Its
smoke pipes are made of stainless steel and the chimney has been insulated for
fire safety. The chimney has a round cross section. The smoke pipe diameter is
115 mm, and the outer casing is 220 mm. See figure 11.
- Open the cover hatch of the rear connection opening (M1/M2/M3, Classic 140/220/280, Premium/Premium VS, Linear 16, 16 only). Bend the holder with a screwdriver.
- Move the blocking plug from the upper connection opening on the rear connection opening.
- Bend the holder with a screwdriver. Turn the cover hatch back up and lock it in its position with a screw (M1/M2/M3, Classic 140/220/280, Premium/Premium VS, Linear 16, only).
- Connect the steel chimney’s smoke pipe to the upper connection opening of the stove. Ensure that the smoke pipe fits tightly in place. See the detailed instructions in the steel chimney’s installation instructions!
If a protective cover is used around the stove, the insulation of the chimney must start from the same level as the top surface of the protective cover or underneath it.
Changing the Opening Direction of the Stove Door
The door to the firing chamber can be installed to open either to the right or
to the left. See figure 12.
Accessories
- A. Harvia steel chimney WHP1500. 3.2.3.
- B. Water heater VL22l. Installed on the top of the upper connection opening. When a protective sheath or other protection is used that is not large enough to protect the inflammable materials around the stove from the heat radiation of the pipe between the water heater and smoke flue, you must install a radiation cover around the pipe.
- C. Radiation cover WZ020130. Installed around the smoke pipe.
- D. Harvia protective sheath WX017. See figure 8.
- E. Harvia protective sheath WL400–WL775. See figure 8.
- F. Harvia protective bedding WX018, WL100. (not for models 20 RS/LS Pro, 36, 36 Duo, Premium VS, Linear 22 RS/LS).
- G. Harvia protective bedding WL110 (not for models 20 ES Pro/S, Linear 22 ES).
- H. Angle smoke pipe. Different models.
- I. Lead-through flange for smoke pipe WZ020115. Covers the edges of the flue opening and the sealing in the wall. Made of stainless steel. Consists of two parts to make it useable with differently inclined smoke pipes.
- J. Masonry connector WZ011115. Connected to the flue opening, does not require other seals. The inner side already has a seal.
P.O.Box 12 Teollisuustie 1-7 40951 Muurame FINLAND
+358 207 464 000 harvia@harvia.fi
Е-mail: spb@accountor.ru
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