Multi-fuel water or steam boiler - has double=walled hearth and radiator in dust separator for additional heating of water

摘要

The multi-fuel water or steam boiler generating gas incorporates a double-walled hearth for rapid water heating, and a dust separator containing a filter and a finned radiator. The latter gives additional heating of the water by the hot gases from the hearth, while a burner is provided for the carbonic oxide in these gases, forming a third-stage water heater.