Helo RING WALL 60 ST [5/14] Product manual ring wall st

2.4 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. Please refer to the table on page 9 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 Ring Wall ST