Sauna Room Floor; Heater Output; Ventilation Of The Sauna Room; Hygienic Conditions Of The Sauna Room - Harvia AV-4 Instructions For Installation Manual

2.2. Sauna Room Floor

Due to a large variation in temperature, the sauna stones
disintegrate in use.
Small pieces of stone are washed down on the sauna
room floor along with the water thrown on the rocks.
Hot pieces of stone may damage plastic floor coverings
installed underneath and near the heater.
A light-cocoured joint grout, used for a tiled floor,
may absorb impurities from the rocks and water (e.g
iron content).
To prevent aesthetic damage (due to the reasons
presented above) only dark joint grouts and floor
coverings made of rock materials should be used
underneat and near the heater.

2.3. Heater Output

When the walls and ceiling are covered with panels,
and the insulation behind the panels is sufficient to
prevent thermal flow into the wall materials, the heater
output is defined according to the cubic volume of the
sauna. See table 1.
If the sauna has visible uninsulated wall surfaces, such
as walls covered with brick, glass block, concrete or
tile, each 10 square feet (ca. 0,1m²) of said wall surface
causes the cubic volume of the sauna to increase by
1,2 Cu.Ft. (ca. 0,12 m
selected according to the values given in the table.
Because log walls are heated slowly, the cubic
volume of a log sauna should be multiplied by 1.5, and
the heater output should then be selected on the basis
of this information.

2.4. Ventilation of the Sauna Room

Sufficient ventilation is extremely important for the
sauna. The air in the sauna room should be changed
six times per hour. The fresh air pipe should come
directly from outside.
Inlet ventilation openings shall be located at the bottom
of the wall, as close to the floor level as possible.
Outlet ventilation openings shall be located at the
top of the wall, as close to the ceiling as bossible, and
shall comply with the minimum size requirements for
inlet ventilations openings. See fig. 4.

2.5. Hygienic Conditions of the Sauna Room

Good hygienic standards of the sauna room will make
bathing a pleasant experience.
The use of sauna seat towels is recommended
to prevent sweat from flowing onto the platforms.
The towels should be washed after each use.
Separate towels should be provided for guests.
It is advisable to vacuum or sweep the floor of
the sauna room in connection with cleaning. In
addition, the floor may be wiped with a damp
cloth.
The sauna room should be thoroughly washed
at least every six months. Brush the walls,
platforms and floor by using a scrubbing-brush
and sauna cleanser.
Wipe dust and dirt from the heater with a damp
cloth.
8.
3 ). The heater output is then

3. INSTRUCTIONS FOR INSTALLATION

3.1. Prior to Installation

Prior to installing the heater, study the instructions
for installation, as well as checking the following points:
The heater power should be suitable for the sauna
•
room volume. Table 1 shows the directive minimum
and maximum volumes for each heater output. A
precondition for the given values is that the sauna
room has well heatinsulated walls and a ceiling
with timber cladding.
Are there a sufficient number of high quality sauna rocks?
•
Is the supply voltage suitable for the heater?
•
The fuses and the connection cables conform with
•
valid regulations and their dimensions are in
accordance with table 2.
The location of the heater fulfils the minimum
•
requirements concerning safety distances given
in figure 5.
It is absolutely necessary to ensure that the
•
installation is carried out according to these values.
Neglecting them can cause a risk of fire.
Note! We do not recommend that the AV heater
•
be used in saunas having walls made from solid
timber, brick or stone. Cold surfaces without
cladding will 'sweat' and leak water when bathing.
In addition, the slow warming up of solid wall
surfaces will prolong the time needed to raise the
sauna room temperature.
Only one electrical heater may be installed in the
•
sauna room.
HEATER
inch mm
Width 20" 505
Depth 19 1/4 " 490
1/4
Height 34 " 870
MODEL
AV4
AV6
Table 1. Installation details of a AV heater. See fig. 4
and item 2.3. "Heater output"
Figure 5. Min. distances to combustible materials
SAUNA ROOM
Min. height
Floor area
inch
Sq.Ft.
m m
m²
Min. Max.
28 45
74 13/16
2,6 4,2
1900
40 67
3,7 6,3
Volume
Cu.Ft.
m³
Min. Max.
175 280
5 8
245 420
7 12