13
Ÿ
Put the larger stones at the bottom of stove compartment and the smaller ones on top.
Ÿ
Do not pile them tightly so that air can flow freely.
Tightly placed stones decrease working time of the heater
element, the stones should plainly cover the heater element .
NOTE
Ÿ
Rearrange the stones in the heater at least once a year or twice if it is in frequent use
(maximum 500 hrs). Refer to diagram below on how to arrange stones correctly.
4.7 Insulation
Ÿ
The door, ceiling and walls of sauna room must be insulated.
Ÿ
Ensure that moisture-protection is installed in the sauna room to prevent spreading
moisture to the other rooms or wall structure . Moisture-protection must be placed
between panel and heating insulation.
Ÿ
Moisture and thermal protection should be installed from outside to inside, recommend
minimum thickness of the thermal insulation in the walls is 25mm and in the ceiling
50mm.
4.8 Air Ventilation of Sauna Room
Ÿ
Mix the cold air with hot air to relieve mugginess when bathing.
Ÿ
Draw the fresh air around the heater to ventilate the sauna room.
Ÿ
Move the heater to the farthest part of sauna room considering air ventilation of sauna
room, the inlet and outlet vent should be properly installed.
Ÿ
The inlet vent may be installed on the wall below the heater. When using mechanical
ventilation, inlet vent is placed 50cm above the heater or on the ceiling above the
heater the heavy cold air that is blown into the sauna room is mixed with the light hot air
from the heater ,bringing fresh air for bathers.
Ÿ
The recommended inlet should have a diameter of 5-10cm.
Fig 14
