Stage 3: TO PILE THE STONES
- The stones are piled on the top of the fire grate in
the stone capacity, in between the heating elements
(resistors) so that the stones support each other. Please
make sure that the resistors are not supporting the
weight of the stones.
- When piling the stones, make sure that the resistors
are not bending and there is sufficient air circulation.
- Do not pile the stones densely. A stone basket which
has been filled too densely causes overheating of the
resistors (= a shorter lifetime) and slows down warming
up the sauna.
- The stone size diameter suitable for the sauna stove
is 4-7 cm.
- The stones must completely cover the heating
resistors (Figure 7).
BEFORE YOU CONNECT THE SAUNA STOVE ALWAYS CHECK THE STEAM ROOM.
A STONE BASKET WHICH HAS NOT BEEN FILLED COMPLETELY CAUSES A FIRE
RISK!
Use of ceramic stones that are light, porous and of the same size is prohibited, as they
can cause the resistors to heat up too much and break. Similarly, soft soap stones
cannot be used as sauna heater stones.
4. AIR CONDITIONING IN THE SAUNA
- The air concitioning in the sauna must be arranged as effectively as possible to get
sufficiently oxygen and fresh air. The best way is to direct fresh air near the sauna
stove (not closer than 50 cm).
- The ventilating air pipe must be equipped with an adjustable valve.
- The size of the bleed valve must be twice as big as the fresh air valve. The bleed
valve can be installed on the wall opposite the sauna stove at least 20 cm higher than
the fresh air valve.
5. CONSTRUCTION OF THE SAUNA
The sauna must have good thermal insulation, especially on the ceiling through which
the steam mostly tends to evaporate. Owing to the damp, it is recommended to protect
the thermal insulation of the sauna with something which does not let damp penetrate,
for instance aluminium foil. The cladding must always be wood.
E min
A min
min 20 cm
C min
A min
B min
Figure 7.
