8
Insulation resistance of the electric heater
Laying of the heater stones
• HUUM DROP
• The stones with a
HUUM DROP heater.
•
stones.
•
•
NB! The defects due to the use of unsuitable stones are not covered by
•
water.
Requirements for laying stones:
•
•
•
•
•
•
NB! If the heating elements are not properly surrounded by stones, the
safety distances given in Table 1 do not apply, as additional heat radiation
not visible from between the stones!
•
