Safety Distances And Protection; Safety Distances; Top Connection; Connection To A Ready-Made Flue - KASTOR KARHU-22 T Installation And User Manual

More balanced heat properties can be reached by using a mix of differently sized and different types of stones and
adjusting the amount of stones. As stones and layouts are unique, there are no generally applicable rules. Try placing the
stones in different ways to find the ideal layout for your needs.
In order to operate properly, it is vital that the hot flue gases can flow freely in between the stones and heat them up
quickly. If the stones are too small or incorrectly laid, the air in the sauna room will heat up, but the stones won't.

3. Safety distances and protection

3.1. safety distances

Safety distance to a stone wall is 50 mm from the outer surface of the heater. 100 mm is preferable to allow sufficient air
flow.
Therefore, a heater can be installed in a bay corresponding to the heater's width + 200 mm.
Refer to Table 1 for heater-specific safety distances to flammable materials.
To allow enough space for heat radiation and for operating and servicing the heater, the recommended safety distance in
front of the fire door is 1000 mm.
The minimum safety distance in the front is 500 mm
4. Heater connection to a smoke flue

4.1. Top connection

Install the heater's own connection pipe to the upper flue opening and the shorter section into the heater.
Make a hole in the brick chimney which is 2–3 cm bigger than the connecting pipe.
Top connection is made by using a bended pipe, which can be turned to match the chimney.
Bended pipes are available at hardware stores. A bended pipe can be extended, when necessary. Install the heater's own
connecting pipe to the upper flue opening on top of the heater. The bended pipe in question is installed on top of the
heater's connecting pipe. Use a saw to adjust the length of the bended pipe and extension, if any. Make sure the pipe
goes deep enough into the chimney (not too far; the chimney may be blocked).
Seal the empty space between the pipe and the brick chimney by using flexible, fire-resistant material, such as fire wool.
The connection is finished by using a cover plate, available from a hardware store. Fix the cover plate to the chimney
using metal fixtures or fire-resistant putty.

4.2. Connection to a ready-made flue

The heater can be connected from the top to a ready-made flue.
Select the correct ready-made flue in accordance with factors such as the heater model, the height of the flue, external
conditions and temperature class T-600. A damper plate must be installed in the flue.
•
Install the heater's own connection pipe to the upper flue opening on top of the heater, the shorter section into the
heater.
•
On top of the connection pipe, install a non-insulated interconnecting pipe and an extension, if needed. Use a saw to
adjust the length of the interconnecting pipe and extension, if any.
•
Install the damper between the non-insulated and insulated part, or alternatively, into the first insulated chimney flue
module
•
Continue using insulated modules on top of the damper. There should be at least 400 mm of insulated chimney flue
below the ceiling. Follow the installation and user instructions for ready-made flues.
Adhere to the above mentioned safety distances to flammable and non-flammable materials.
TylöHelo Oy is not liable for suitability or performance of other manufacturers' ready-made flues used in connection with
Kastor heaters.
TylöHelo Oy is not liable for the quality of other manufacturers' ready-made flues.

5. Heater door and changing left/right-handedness

The side on which the handle is installed cannot be changed.

6. Grate

There is a grate in the heater's stove. Place it on the brackets on the bottom of the stove. Keep the grate clean and empty it
before the next heating to allow air to flow from below the grate into the furnace.
7. General advice on preventing damage
When you bring the heater into the sauna room, burn another full batch of wood before placing the stones and make sure
that there's plenty of ventilation. This way any residual protective agents will burn off and the finish is properly cured.
Read the instructions below and make sure to follow them:
•
Wood quantities can be found in table 2
•
In cold conditions, avoid heating at full power. The brick chimney may crack.
•
Do not heat the sauna heater so that the cover is constantly red-hot.
•
Exposure to saltwater will shorten the heater's life cycle significantly. Please note that even water from a well can
contain salt in the vicinity of sea.
•
The warranty is void if saltwater is used in the heater.
The temperature classification for the chimney must be T 600.
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