Stoves and furnaces – Fireplaces or accessories – With heat exchanger for room heating air
Patent
1995-12-15
1997-12-30
Price, Carl D.
Stoves and furnaces
Fireplaces or accessories
With heat exchanger for room heating air
126528, 126 77, 126531, F24B 1188
Patent
active
057018820
ABSTRACT:
A fireplace having a low density ceramic fiber duct with a first duct portion which promotes secondary combustion of unburned products of combustion and a second duct portion which removes products of combustion from the front of the combustion chamber. The ceramic fiber duct is positioned within the fireplace at a location along the flow path of the products of combustion that is intermediate the fireplace combustion chamber and flue. The first ceramic fiber duct portion includes a number of horizontally spaced and longitudinally extending circuitous, internal passageways which define the flow path as well as segregate the products of combustion. Due to their ceramic fiber construction, the passageways heat up quickly to promote secondary combustion of combustion products therein soon after fire ignition. In addition, the passageways are structured such that the combustion products must cover an extended exhaust path, which lengthens their stay within the heated passageways and promotes secondary combustion. The second ceramic fiber duct portion includes a passageway through which combustion products near the front of the combustion chamber can be drawn into a venturi passageway and then exhausted through the flue.
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Price Carl D.
The Majestic Products Company
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