Finlandia ELECTRIC SAUNA HEATER JM-17 - Manual (Page 7)

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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. 1m²) of said wall surface causes
thecubicvolumeofthesaunatoincreaseby42 Cu.Ft.(ca.
1.2m
3 ).Theheateroutputisthenselectedaccordingtothe
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.
Sauna shall be provided with intended ventilation as
required per the local code authorities.
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.
Figure 5. Min. distances to combustible materials
3. INSTRUCTIONS FOR THE
INSTALLATION
3.1. Prior to Installation
•
Prior to installing the heater, study the
instructions for installation, as well as checking
the following points:
•
Is the output and type of the heater suitable for
the sauna room?
The cubic volumes given in table 1 should be
followed.
•
Are there a sufficient number of high quality
sauna rocks?
•
Is the supply voltage suitable for the heater?
•
The location of the heater fulfils the minimum
requirements concerning safety distances given
in fig. 5 and table 1.
It is absolutely necessary to ensure that the
installation is carried out according to these values.
Neglecting them can cause a risk of fire.
Only one electrical heater may be installed in the
sauna room.
Table 1. Installation details of a JM heater. See fig. 4
and item 2.3. "Heater output"