Stoves and furnaces – Stoves – Heating
Patent
1987-09-29
1990-05-08
Scott, Samuel
Stoves and furnaces
Stoves
Heating
110283, 110300, 110310, 126 77, 126146, 126 83, 126312, 126112, F24B 1304, F24B 502
Patent
active
049228897
ABSTRACT:
A heater for burning combustible pelletized fuel. The pelletized fuel is delivered at a controllable rate to a double-walled burn pot in an enclosed combustion chamber. Combustion air is injected into the combustion chamber at a pressure higher than the ambient air pressure surrounding the heater. Combustion air is injected between the walls of the burn pot through ports in the inner wall into the fuel at or slightly below the top of the fuel level. Additional combustion air is injected approximately horizontally across the top of the burn pot through an injection air manifold. Crossfire injection air is injected approximately vertically about the periphery of the burn pot, confining fumes and exhaust air directly above the burn pot. Heated exhaust gasses rise to the top of the combustion chamber and are drawn from the combustion chamber through a heat exchange unit surrounding the combustion chamber. The exhaust gasses are drawn from the combustion chamber by suction created by and extraction air mechanism. Both the injection air supply and the suction for extracting exhaust gasses are provided by a single hybrid injection air/extraction air blower assembly.
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Brondt Gary
Nuesmeyer David
Barndt B. Peter
Flanigan Allen J.
Scott Samuel
Thermic, Inc.
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