9
Hearth stones
Heating the sauna stove
Dry
fi
rewood is the best for heating the sauna stove.
Fuels of high heating value should
not be used for heating the sauna, e.g.
fi
breboard, plastic, plywood, charcoal, etc. Liquid
fuels must not be used in any case. It is recommended by the manufacturer to
fi
ll only half
of the stove with
fi
rewood. Filling the furnace at full extent may cause overheating. This
shortens the service life of the sauna stove signi
fi
cantly.
The ash compartment may be open only during starting the
fi
re to enable the access of
additional air needed for burning. During heating the ash compartment has to be closed,
except when adding
fi
rewood or removing the ashes, to avoid smoke spreading into the
steam room.
Heating the steam room depends on the size of the room, the placement of windows in
the steam room, power of the stove and the material of walls. In case of non-insulated
wall surfaces (brick, ceramic plate, concrete, etc.) a powerful stove is required: per every
m² of the wall 1.2 m³ of additional capacity is needed. In case of log walls the capacity is
multiplied by 1.5. A properly chosen sauna stove heats the steam room up to the required
temperature within 1 (one) hour.
Water for steam
Clean water is used for making steam. Salty, hard or water rich in iron causes corrosion
and shortens the service life signi
fi
cantly.
Warranty conditions
The manufacture undertakes to exchange or repair a defective stove within 24 months
from the date of sale in factory or shop on condition the consumer has not failed to fol-
low the requirements of the installation and the user manual. The warranty is effective on
condition the stove is used for its intended purpose and the manufactured construction is
not changed. If the door glass of the sauna stove is broken, the manufacture is not obliged
to change it.
Stones of the hearth must not block the air circu-
lation between the centre of the hearth and the
housing.
Some natural stones may contain improper sub-
stances such as sulphur compounds, which make
them unsuitable for the use as hearth stones.
Clean the stones from dust before you pile them
on the hearth. Bigger stones are laid at the bot-
tom of the stone base; smoother stones are piled
along the walls of the stone base. Smaller stones
are laid out on top because they are heated up
quickly. The humidity of the steam depends on
the amount of stones and the temperature of the
sauna. The more stone and the lower tempera-
ture, the more humid the steam is.
