Heat recovery system for wood burning stove - exhaust fumes are oxygenated and volatile gas ignited to raise temp. of air heater increasing efficiency

摘要

The principal heat recovery is attained by surrounding the stove with an indirect air heater comprising a flue path in an air duct. The exhaust fumes pass from the front of the stove, under the hearth and rise over the firestack and top of the enclosure. - The hot gases and smoke are further oxygenated, by the addition of cold air from the bottom. They ignite to burn off the volatile components which raises the temperature. A reflective screen is interposed between the stove and rear wall of the room.