Heating unit with heat exchanger acted on by burner arranged in combustion chamber

摘要

The heating unit has a heat exchanger (3) acted on by a burner (2) arranged in a combustion chamber (1). The burner is supplied with natural gas across a proportioning gas valve (4) and with air across a blower (7) which can be regulated. The burner and the heat exchanger are connected with a waste gas line (18) of a fuel cell (9). To which is preconnected a reformer (10), acted on with natural gas and steam, across a proportioning valve (12).