2.4 Sauna heater stone
Quality stones meet the following requirements:
- Sauna stones should withstand heat and heat variation caused by vaporisation of the water thrown
on the stones.
- Stones should be rinsed before use in order to avoid odour and dust.
- Sauna stones should have an uneven surface to supply a larger surface for the water to evaporate
from.
- Sauna stones should be large enough, measuring about 50–80 mm to allow good ventilation be-
tween the stones. This extends the useful life of the heating elements.
- Sauna stones should be piled sparsely in order to enhance ventilation between the stones. Do not
bend the heating elements together or against the frame.
- Rearrange the stones regularly (at least once a year) and replace small and broken stones with new,
larger stones.
- Stones are piled so that they cover the heating elements. Do not, however, pile a large heap of
stones on the heating elements. Please refer to the table on page 8 . Table 1 for an adequate
amount of stones. Any small stones in the package of stones mustn't be piled on the sauna heater.
- The warranty does not cover defects resulting from poor ventilation caused by small and tightly
packed stones.
- Structural clay tiles are not allowed. They may cause damage to the sauna heater that will not be
covered by the warranty.
Product Manual Vienna STS
5
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