Heating boiler with burner has heat exchanger formed by ceramic jacket round combustion chamber and within outer skin

摘要

The heating boiler has a burner (9) and a ceramic jacket (11) round the combustion chamber (12) and within an outer skin (1), forming the heat exchanger. A tube spiral is taken through it with the input line (V) connected to one end and the return line (R) to the other. Channels (18, 19) run through the ceramic jacket. The combustion gases flow from the combustion chamber to the exhaust pipe (23) through these channels.