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2.5. Connecting the stove to a brick chimney and instructions for KARHU-JK stoves
The Karhu stove can be connected to a brick chimney from the back or the top. JK models can only be connected
from the top. For a brick chimney connection, the safety distances and protectors named in chapter 2.4. and the
chimney’s masonry regulations must be adhered to.
2.5.1. Connection from the rear, only in KARHU models
Make an opening in the brick chimney that is 2-3cm wider than the connection pipe.
Use a screwdriver to detach the rounded plate covering the hole in the inner back mantle. Move this covering plate onto
the hindmost hole on top of the stove. Place the connection pipe delivered with the stove in its rear wall opening. Push the
stove into its place. Make sure that the connection pipe settles well into the hole in the chimney. Tighten the space between
connection pipe and chimney with a flexible, fire-proof material such as fire wool. Neaten the hole with a Kastor covering,
available at your hardware store. The covering is attached to the brick chimney surface with metal attachments or fireproof
glue. (Picture 2.4.)
2.5.2.
Heaters installed through the wall, KARHU-JK general
Stoves with extended feed doors must only be installed into walls made of non-flammable material (brick,
concrete etc.).
The non-flammable material must be arranged around the door extension as shown in picture 6.
The height of the sauna cabin altitude. If there is a flammable floor in the room with the door, the area requiring
protection must extend 100mm beyond both sides of the door and at least 400mm in front of it. The protective
layer should be a metal sheet with a thickness of at least 1mm.(
protective plate on the floor).
The floors of the sauna and the room into which the stove door opens must be on an equal level. The room with the
stove door may also be on a lower level, but never higher than the sauna's floor!
The stove and its extension must be installed on a sturdy, immovable, fireproof, level surface. A cast
concrete base is the best choice.
If the floor of the room with the
door
in it is flammable, there must be a non-
flammable protective layer (i.e. cast concrete or masonry) of at least 60mm beneath the door extension. The fire
protection measures on.
By adding fireproofing the stove and its door extension may also be installed on wooden floors.
Nevertheless, the dividing wall must be non-flammable (brick, concrete or similar). For the sauna and the extended
door, a concrete slab with a thickness of 60mm is usually acceptable (remember to take care of moisture draining).
The fireproofing on the sauna side floor must extend 50mm in front of the stove, 50mm at its sides and 50mm behind
it or, at the back and sides, up to a fireproofed wall. (picture 6)
In unclear cases consult the local fire safety officials.
2.5.3. INSTALLATION THROUGH THE WALL AND FITTING THE FRAME , KARHU-JK models.
See also the instructions in chapter 2.6. concerning flue pipe installation.
Make sure that you have received the frame that belongs to the door extension (behind the stove, between the packing
hoop and the stove).
Installation through the wall:
•
Make a hole in the wall. Its size should leave about 10-20mm of clear space all around the door extension.
•
Remove the stove door by taking the hinge pin off (note the base plates between door and frame).
•
Remove the ash door.
•
Install the stove from the sauna side and push it as far as possible through the wall, so that the door extends about
40mm beyond the wall.
•
Insulate the gap between feed door and wall with fireproof mineral wool. Follow the instructions of the mineral wool
manufacturer!
•
Install the frame into place via the door (do not yet attach it to the wall).
•
Attach the door. Remember the base plate. At this point, you may choose the door's opening direction.
•
Place the rivet in the upper part of the frame in the remaining hole.
•
Put the ash door into place.
•
Ensure that a gap of 5-10mm remains between extended door and the frame on top of it to allow for heat expansion.
•
Attach the frame to the wall with six 5mm screws using metal attachments that are embedded in the wall.
2.5.4. Connecting from the top. Karhu PK
Place the heater's own connecting pipe to the heater's upper flue opening. (Check 2.4)
Make a hole in the brick chimney which is 2
–3mm bigger than the connecting pipe.
Use a bent pipe for the connection from the top of the stove, which can be turned to align with the chimney.
Suitable bent pipes are available at the hardware store. Extend the bent pipe with an extension piece, if
necessary. Install the stove’s own connection pipe in the flue opening on top of the stove according to stove model
instructions. The bent pipe is then atta
ched to the stove’s own connection pipe. Saw the bent pipe and any
extension pipe down to a suitable size where necessary. Make sure the pipe extends sufficiently into the chimney
(but not so far that it blocks up the chimney).
Seal the empty space between connection pipe and chimney with flexible, fireproof material such as stone wool.
The lead-through is then tidied up with a Kastor covering plate, which is available at your hardware store. The
covering plate is attached to the wall with metal bolts or fireproof paste. See picture 2.5.2.
Summary of Contents for KARHU-12PK
Page 37: ...37 KASTOR KARHU PK KARHU 12 16 20 27 37 18 ES 20V 27V 37V KARHU JK...
Page 39: ...39 KASTOR KARHU KASTOR Kastor Ceram 800 Coanda www helo fi 1 1 1 o o o o 2 o 1 2 1 3 3 2 2 25...
Page 40: ...40 2 2 T 600 2 3 2 4 12 120 Kastor...
Page 41: ...41 2 2 1 VO VV 2 1 2 ES 2 1 3 2 8 2 1 2 VO VV 1 2 1 3 ES 1 1 2 1 4 ES 2 2 10 Kerkes 2 1 1...
Page 46: ...46 www helo fi 3 5 115 130 2 3 2 2 2 80 C 3 2 3 5 2 2 10 2 2 3 3 2...
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