Stoves and furnaces – Liquid heater
Patent
1987-08-25
1988-04-12
Scott, Samuel
Stoves and furnaces
Liquid heater
237 55, 126110AA, F24B 700
Patent
active
047367300
ABSTRACT:
A heating system comprising a firebox defining a combustion chamber that is substantially sealed from the atmosphere. The system includes a flue for conducting combustion gases from the combustion chamber. A first duct surrounds the flue and defines an inner passageway with respect thereto. A second duct surrounds the first duct and defines an outer passageway. An inlet means is provided for introducing ambient air into the outer passageway. The air in the outer passageway is drawn through the inner passageway by a negative pressure in the combustion chamber. The ambient air in the inner and outer passageways is heated by heat transmitted from the flue. This heated ambient air is then introduced in the combustion chamber to improve the efficiency of combustion.
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Odar H. A.
Scott Samuel
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