Take gas heater of oxygen -deficit protection device

The utility model provides a take gas heater of oxygen -deficit protection device belongs to the water heater field, this kind of take gas heater of oxygen -deficit protection device, including combustion chamber, muddy trachea, combustor, first thermocouple and second thermocouple, the combustion chamber has the first end and the second end of relative setting, and the combustor sets up in firstend, and first thermocouple sets up in first end, first thermocouple is connected with second thermocouple electricity, mix trachea intercommunication combustor, the combustor includes fire end, and the second thermocouple is towards fire end, mixing and being provided with first solenoid valve between trachea and the combustor, first solenoid valve is connected with first thermocouple electricity, mix the trachea and keep away from the one end connection gas pipe and the combustion -supporting pipe of first solenoid valve, still be provided with gas mixing valve on the muddy trachea. First solenoid valve may not be c