Nature Sauna Inc. Canada. 3625 Loreto Rue, Brossard, QC, Canada. TEL: (1)514-663-2291 Website: www. naturesauna.com
5
Rearrange the stones in the heater at least once a year or twice if it is in frequent use (maximum 500 hours). To
decide the correct volume of stones in the heater, refer to technical data provided (table 1).
CHART 5
：（
PILING OF THE SAUNA STONES
）
Air Ventilation of SAUNA ROOM
CHART 6
：
（
LOCATION OF INLET AND OUTLET VENT
）
1.
Air supply vent.
2.
Optional air supply vent if mechanical exhaust ventilation is used, the opening should be located 20” above
the heater.
3.
Exhaust air vent.
4.
Drying vent, which is closed during heating and bathing. The sauna can also be dried by leaving the door
open after bathing.
If there is an exhaust vent in the sauna room only, leave a MIN 2” opening under the sauna room door. (Mechanical
ventilation is recommended).
To ventilate the Sauna room, we mean that drawing air around the heater and moving the heat to the farthest
part of sauna room.
Considering air ventilation of sauna room, the inlet vent and the outlet vent should be installed.
The inlet vent should be installed on the wall below the heater (chart 6a). When using mechanical ventilation, inlet
vent is placed at least 20” above the heater (chart 6b) or on the ceiling above the heater (chart 6c). The heavy cold air
that is blown into sauna room is mixed with the light hot air from the heater, bringing in fresh air for the users. The inlet
vent should have a diameter of 2”-4”.
The outlet vent should be placed diagonally opposite to the inlet. It is advised the outlet vent is placed under the
platform in a sauna room as far as possible from the inlet vent. It can be installed near the floor, or lead outside through a
pipe from the floor going to a vent to the sauna ceiling, or under the door (to the washroom).
In this case, the sill slot must be at least 2” and it is recommended there is mechanical ventilation in the washroom . The
size of the outlet should be twice of the inlet.
Warning: 1. Do not turn on power when install or maintain the heater.
2. Do not cover heater with clothes which may cause a risk of fire.
