SAWO CIRRUS ROCK CRR3-75NS [17/20] Air ventilation

A B C

The sauna must have proper insulation on the walls, ceiling and door. One square

meter (m²) of uninsulated surface increases the cubic volume by approximately

1,2m³ when determining the power requirement of the heater. Refer to Fig.5.

Ensure that moisture proofing is appropriate in sauna room. The purpose of this is

to prevent spreading of moisture to the other rooms or wall structure. Moisture

proofing must be placed between heating insulation and panel. Nordic spruce wood

is recommended for the walls and ceiling inside the sauna.

Thermal and moisture proofing need to be installed according to the following order

from outside to inside

To have a soothing sauna, there should be a proper mixing of hot and cold air inside

the sauna room. Another reason for ventilation is to draw air around the heater and

move the heat to the farthest part of the sauna. The positioning of the inlet and

outlet vents may vary depending on the design of the sauna room or preference of

the owner. Special sauna grade spruce wood is essential for the walls and ceiling

inside the sauna.

The inlet vent may be installed on the wall directly below the heater (Fig. 8A). When

using the mechanical ventilation, inlet vent is placed at least 60 cm above the hea

ter

(Fig. 8B) or on the ceiling above the heater (Fig. 8C). Through these positions, the

heavy cold air that is blown into the sauna is mixed with the light hot air from the

heater, bringing fresh air for the bathers. The inlet and the outlet vent must have a

diameter of 10cm.

The outlet vent should be placed diagonally opposite to the inlet. It is recommended

that the outlet vent is placed under the platform in a sauna as far as possible from

the fresh air vent. It may be installed near the floor, or led 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 5 cm and it is recommended

that there is mechanical ventilation in the washroom. The size of the exhaust should

be twice that of the inlet.

Air Ventilation

Insulation

The recommended minimum thickness of the thermal insulation in the walls is 50

mm and in the ceiling 100 mm.

It is possible to use carton- or aluminum foil laminate as a vapor barrier, which is

affixed over the insulation aluminum foil inwards.

Leave at least 20 mm air slot between vapor barrier and inside panel.

To prevent gathering of the moisture behind the panel leave the slot between wall

panel and ceiling.

Рис. 8

Fig. 8

ENGLISH