The flames reach into the connecting pipe, which is red hot, although the lower end of the stove
within the mantle is not red. See chapter 3.3. about draught adjustment and heat output.
Is the draught too weak?
See chapter 3.3. about draught adjustment.
Correct amount of stones?
The stones should reach up to the edge of the stone compartment at the edges and be heaped
up only by half a stone in the middle.
Are the stones packed too tight?
The stones need to be stacked in such a way that there is enough air between them. See
chapter 2.2. “Stones and their arrangement”.
Are the stones good quality and the correct size?
Suitable stones are peridotite or dunite of a length of over 10 cm and not too flat.
. Flat stones are placed in an upright position
The sauna does not get hot enough.
All doors and windows must be closed, and air conditioning must be turned off. Combustion
air inlet is open
.
Is the sauna new or the wooden structure otherwise moist?
For instance, a new log cabin sauna warms up properly past 80
o
C only after a year.
Is the stove properly heated?
Has the stove been fired sufficiently?
Burn according to instructions.
You should burn at least one compartment full of split, dry logs according to instructions.
Is there too much draught?
Adjust draft using the damper.
The flames reach into the connecting pipe, which is red hot, although the lower end of the
stove within the mantle is not red. See chapter 3.2. about draught adjustment and heat
output.
Is the draught too weak?
See chapter 3.2. about draught adjustment.
Has the heater been sized correctly?
Is the stove too big for the sauna?
Is the draught height (chimney height) sufficient with regard to the environment?
Nearby trees, a steep hill etc. requires more than 3.5. meters as measured from the chimney
floor.
Correct amount of stones?
The stones should reach up to the edge of the stone compartment at the edges and be heaped
up only by half a stone in the middle.
Are the stones packed too tight?
The stones need to be stacked in such a way that there is enough air between them. See
chapter 2.2.
Are the stones good quality and the correct size?
Suitable stones are peridotite or dunite of a length of over 10 cm and not too flat.
The sauna heats up quickly, but the stones remain cool.
Correct amount of stones?
The stones should reach up to the edge of the stone compartment at the edges and be heaped
up only by half a stone in the middle.
Are the stones packed too tight?
The stones need to be stacked in such a way that there is enough air between them. See
chapter 2.2.
Is the stove too big for the sauna?
Keep the ventilation valve open to remove excess heat, which gives the stones time to warm
up as well. This will extend the heating period slightly.
Are you heating the sauna correctly?
Read chapter 3 of these instructions carefully.
14
Summary of Contents for Karhu PK Series
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