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displayed on the screen for a while as an indication
of the higher power and the indicator lamp 7 glows
(fig. 2).
A well-insulated sauna room (see chapter 2.1.
"Insulation and wall materials of the sauna room")
warms up to a proper bathing temperature in 5–15
minutes. Bathing requires no special preparations;
just wait until the temperature reaches approximate-
ly 131 degrees Fahrenheit (55 degrees Celsius). The
best bathing temperature when using this heater
model is +131...+140 °F (+55 ...+ 60 ºC). At this
temperature, enough water can be used to produce
a pleasant humidity in the sauna room. The same
humidity conditions cannot be reached at higher
temperatures.
1.7. Throwing Water on Heated Stones
When the sauna room air warms up, it becomes
dry and, therefore, it is necessary to throw water
on the hot stones.
When the sauna room's basic temperature is
+131...+140 °F (+55 ...+ 60 ºC), you can start
bathing. If the basic temperature is very low, the
cold, solid wall surfaces become wet.
The bather should throw water on the stones with
a small ladle (approx. 0,2 l). The frequency will de-
pend on the effect of the increasing humidity on the
bather's skin. Humid air is easy to breath and the
skin begins to sweat. Both too high a temperature
and air humidity will give an unpleasant feeling.
The maximum volume of the ladle is 0,2 litres.
The amount of water thrown on the stones at a
time should not exceed 0,2 l, because if an exces-
sive amount of water is poured on the stones, only
part of it will evaporate and the rest may splash as
boiling hot water on the bathers.
Never throw water on the stones when there are
people near the heater, because hot steam may
burn their skin.
Staying in the hot sauna for long periods of time
makes the body temperature rise, which may be
dangerous.
1.7.1. Sauna Water
The water to be thrown on the heated stones should
meet the requirements of clean household water.
The factors essentially affecting the quality of water
include the following:
humuos content (colour, taste, precipitates);
•
recommended content less than 12 mg/litre.
iron content (colour, smell, taste, precipitates);
•
recommended content less than 0,2 mg/litre.
hardness – the most important substances are
•
manganese (Mn) and calcium (Ca); recommend-
ed content of manganese 0,05 mg/l calcium
less than 100 mg/litre.
Calcareous water leaves a white, sticky layer on
the stones and metal surfaces of the heater. Calci-
fication of the stones deteriorates the heating prop-
erties.
Ferrous water leaves a rusty layer on the surface
of the heater and elements, and causes corrosion.
The use of humous, chlorinated water and sea-
water is forbidden.
Only special perfumes designed for sauna water
may be used. Follow the instructions given on the
package.
1.7.2. Temperature and Humidity of the Sauna Room
Both thermometers and hygrometers suitable for
use in a sauna are available. As the effect of steam
on people varies, it is impossible to give an exact,
universally applicable bathing temperature or per-
centage of moisture. The bather's own comfort is
the best guide.
The sauna room should be equipped with proper
ventilation to guarantee that the air is rich in oxygen
and easy to breathe. See item 2.5. "Ventilation of
the Sauna Room".
Bathing in a sauna is considered a refreshing expe-
rience and good for the health. Bathing cleans and
warms your body, relaxes the muscles, soothes and
alleviates oppression. As a quiet place, the sauna
offers the opportunity to meditate.
1.8. After Bathing
When you have stopped bathing, make sure that the
stones are dry and the timer is turned to zero before
closing the heater lid. If the stones are still wet, the
lid should be left open until the stones are dry.
Due to the large number of stones in the heater, it
is economical to keep the standby power switched
on continuously even if the sauna is not used on
a daily basis. The reason for this is that it is rather
slow to raise the temperature of the nearly 100
kilograms of stones to a level suitable for bathing
(+428–500 °F/+220–260 °C).
1.9. Steam Bath
The AF heater also allows you to enjoy low-tempera-
ture steam bathing in the following manner:
go into the sauna room
•
turn on the heater power (HI)
•
open the lid
•
throw a lot of water on the stones with the
•
ladle (0,2 l)
In this way, the temperature will remain extremely
low, the sauna room will be filled with steam and it
is as if you were in a Turkish bath.
After steam bathing, the sauna room structures
should be carefully dried by keeping the heater lid
open for as long as it is necessary. The sauna room
should also be well ventilated to remove humidity!
Finally, set the heater power to the L0 position,
close the heater cover.
1.10. Instructions for Bathing
Begin by washing yourself; for example, by
•
taking a shower.
Stay in the sauna for as long as you feel com-
•
fortable.
According to established sauna conventions,
•
you must not disturb other bathers by speaking
in a loud voice.
Do not force other bathers from the sauna by
•
throwing excessive amounts of water on the
stones.
Forget all your troubles and relax.
•
Cool your skin down as necessary.
•
If you are in good health, you can have a swim
•
if a swimming place or pool is available.
Wash yourself properly after bathing. Have
•
a drink of fresh water or a soft drink to bring
your fluid balance back to normal.
Rest for a while and let your pulse go back to
•
normal before dressing.
7
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