VOLTOMAT HEATING GR-107937.2 Manual Del Usuario página 28

26. WARNING: The heater must not be used if the glass panels
are damaged.
27. This heating device is not suitable for assembling in
vehicles and machines.
28. Warning: Do not use the appliance on shag pile carpets or
cover the air inlet at the bottom of heater.
29. Please use anchor bolts and screws which match your
ground conditions!
30.
31. Regarding the information for FEET ASSEMBLY, please refer
to the below paragraph of the manual.
Means "DO NOT COVER".