Heating boiler with heat exchanger and air suction and gas outlet lines for coercive execution of suction and/or discharge across blower or fan unit

摘要

The heating boiler is designed with a drive motor (21) with a suction blower (22) connected to its driven shaft, arranged at the suction line (13), for the forced suction of air in the room or from the outside. A gas outlet blower (23) is connected at the motor driven shaft, and is arranged at the gas outlet line (60), for the forced removal of the exhaust gas to the outside.