An incineration system for incinerating flue gases which contain varying quantities of combustibles therein. Means is provided for controlling combustion air added to the flue gases when they contain combustible matter and means is provided for sensing the temperature of the combusting waste gases. When a preset temperature is exceeded, additional air is added to reduce the temperature of the gas, but when the temperature falls below the preset point, the burner firing rate is increased and the added air is cut off to insure proper incineration and achieve fuel efficiency.
展开▼
