Blower burning pureness unit e.g. for heating systems, has heat exchanger, waste gas flue, and heat distribution medium channel with fuel and or air duct which positioned to exchange heat with one another

摘要

The unit has a heat exchanger, a waste gas flue, a heat distribution medium channel and a fuel and or air duct which are positioned to exchange heat with one another. A burner housing (11), at an end has an air supply duct provided, with a fresh air connection (8) to a fresh air discharge opening leading to the housing interior and removes warmed up fresh air into the burner housing surrounding area (3). The burner housing is arranged within a hermetic end housing. The housing (2) has a blower unit (19) with a blowpipe unit (4) with air or fuel mixture supplied. The unit has an opening (21) arranged in the end housing, in order to suck air in from the interior.