Heater Door And Changing Left/Right-Handedness; Grate; Using The Heater; Fuels - KASTOR Karhu-22 Installation And User Manual

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Continue using insulated modules on top of the damper. The minimum distance between the insulated chimney and
ceiling is 400 mm. Follow the installation and user instructions for ready-made flues. Fig. 5
Adhere to the safety distances to flammable and non-flammable materials.
For chimneys, safety distances to flammable materials are product-specific. Check the manufacturer's instructions.
If in doubt, contact the local fire authorities.
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 door's opening direction can be changed by turning the door over.
Changing the door's left/right-handedness:
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Open the door and push the hinge pin from below to release it from its hole.
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Pull the hinge pin down to release it from the upper hole; the door is now detached. Pay attention to the washer and
locking nail.
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Turn the door around so that the handle is on the preferred side.
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Start by pushing the hinge pin into the upper hole in the frame, and insert the washer to the pin on top of the frame (the
part of the pin with notches should face down).
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Insert the upper hole of the door to the hinge pin above the frame.
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Finally, guide the hinge pin into the lower holes in the frame and the door.

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 through the grate into the furnace. Fig. 6
7. General advice on preventing damage
When you bring the heater into the sauna room, burn another 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:
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Wood quantities can be found in table 2.
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In cold conditions, avoid heating at full power. The brick chimney may crack.
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Avoid throwing water straight onto the glass door.
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Do not heat the sauna heater so that the cover is red-hot.
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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.
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The warranty is void if saltwater is used in the heater.
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Other factors contributing to the heater life-cycle are correct size for the space, the fuel used, the number of heating
cycles, failure to follow instructions when using the heater, and general diligence.
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Kastor heaters are carefully designed and tested. If a heater becomes damaged in use in an unreasonably short time
(e.g. the covers or top part are torn or burned through etc.), it can be fairly said on the basis of research data that the
heater has not been used as instructed. TylöHelo Oy will not be liable for damage resulting from misuse or use against
instructions.

8. Using the heater

8.1. Fuels

Only natural wood can be used as fuel in Kastor heaters, preferably chopped birch or alder (refer to Table 2 for batch
sizes). The length of firewood is approximately 33 cm. Dampness 12–20%. NOTE! Damp or decayed wood does not
provide heat very well and emissions are higher.
The amounts of wood mentioned in Table 2 correspond to the values of a nominal output test in compliance with EN-
15821, where the volume of the sauna room is the maximum volume. When heating the sauna for the first few cycles,
use smaller amounts of wood than listed in the table to find the ideal batch size for your sauna.
Do not exceed the amounts of wood mentioned in the table
The following materials are not allowed in the heater furnace: impregnated wood, wood containing nails, chip board, plastic,
plastic coated board or paper.
Liquid fuels are not allowed, not even when starting the fire because of the risk of a flash fire. Do not burn large amounts of
small pieces of wood, such as chips or small pieces because of their high temporary heating effect.
Firewood must not be stored immediately next to the heater. Pay attention to the heater's safety distances.

8.2. Adjusting the air flow

The heater has been designed to perform best when the negative pressure of the flue is approximately –12 Pa. If the
chimney is long, this optimal negative pressure limit may be exceeded. Adjust the draft and combustion air flow using a
damper so that it is suitable. Be careful of carbon monoxide. The damper must not be closed too far!
The temperature classification for the chimney must be T 600.
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