barbas ENERGA 70-55 TUNNEL, Installation Instructions Manual

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20
ENERGA 70-55 TUNNEL
The casing / fi replace
• The casing may not be directly connected to the built-in fi re, but must be constructed
so that it is self-supporting; a mantle iron or lintel should be used for this. The
covering in the area must be of non-fl ammable materials of fl ame-retardant material
class A1. This includes bricks, cladding, ceramic tiles, metal or plasterwork, Promatec
and Nobranda.
• The opening for incoming and outgoing air from the casing must be at least totally
900 cm². At least 200 cm² from the opening for incoming and outgoing air must not be
closable.
• The ventilation of the casing/fi replace can be provided by grills, but this can also be
achieved by not building the fi replace right up to the ceiling (leaving a gap of 5 cm).