Combustion device for burning combustion gas, e.g. in a water heater, comprises a gas type recognition device having a determination mode that is interrupted for a specified period after detection of a change in the type of combustion gas

摘要

Combustion device comprises a gas burner (1), a gas type recognition device (50), and a combustion conditions specifying unit (51). When the gas type recognition device detects a change in the type of combustion gas supplied to the gas burner, the gas type recognition device determination mode is interrupted for a specified period after detection. The gas type recognition device carries out the determination process after the period has elapsed. Preferred Features: When operation of the gas burner is restarted and the type of combustion gas has not yet been recognized, the gas type recognition device carries out the determination process without going into interruption mode.