Helo SKSM D Instructions D'installation Et D'utilisation page 28

Sauna heater stones
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
between 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. For a sufficient amount of stones refer to Table 1 on page 2. Any
small stones in the package of stones must not 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.
- Do not use soapstone as sauna rocks. Any damages resulting from this will not be covered by the
stove warranty.
- Do not use lava stone as sauna rocks. Any damages resulting from this will not be covered by the
stove warranty.
- DO NOT USE THE HEATER WITHOUT STONES.