Stoves and furnaces – Hot-air furnaces – Compressed air
Patent
1995-06-26
1999-02-23
Jones, Larry
Stoves and furnaces
Hot-air furnaces
Compressed air
126112, 126502, 126522, 110203, 110211, F24H 300
Patent
active
058733566
ABSTRACT:
A wood pellet stove for efficiently burning wood pellets and especially burning pellets at low burns. The stove is accurately controlled by a control panel with a microprocessor which helps safely regulate air flow from a combustion air and exhaust gas fan. Also, the microprocessor helps control convection air flow from a convection air fan and regulate feed of wood pellets into a burn pot using a motorized auger. The microprocessor is further used to monitor inlet air temperature and exhaust gas temperature. The stove includes a stove housing with a fire box and a fire box access door in the front of the housing. The burn pot includes a burn grate and pit used for receiving and burning wood pellets. The burn pot is disposed on a fire box floor. A wood pellet hopper is disposed in the rear of the housing for holding wood pellets therein. The motorized auger is used for feeding the wood pellets into the burn pot. The stove is characterized by having heat exchanger panels with dimpled surfaces which can easily be removed for cleaning. The dimpled panels are attached to the fire box walls with a space therebetween for forming air and exhaust gas channels. Combustion air and exhaust gases are circulated from the fire box, using an exhaust fan, up a front side of the panels and into the air and exhaust gas channels behind the panels for effectively extracting generated heat from the air and exhaust gases.
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Tomooka Walter K.
Vossler Jeffrey L.
Control Options, Inc.
Crabtree Edwin H.
Jones Larry
Margolis Donald W.
Pizarro Ramon L.
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