Furnace

Details Furnace Furnace

1977-06-17

1982-08-10

Cohen, Irwin C.

Stoves and furnaces

Hot-air furnaces

Feeding air

126 77, F23L 902

Patent

active

043432883

ABSTRACT:
A furnace for the burning of wood in a combustion chamber to generate heat. Primary air is brought in at a grate level of the furnace. Secondary air is brought in through a secondary air inlet, past a preheat chamber and through a secondary air duct to be expelled through holes in the secondary air duct at the top level of flames. The secondary air is preheated in the preheat chamber which is located between the combustion chamber of the furnace and the outside air inlet. A heat exchanger in the top of the oven transfers the heat from the combustion chamber of the furnace to ductwork for distribution.

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patent: 797636 (1906-08-01), Stevens
patent: 866010 (1907-09-01), Eisenberg
patent: 918823 (1909-04-01), Cahodne
patent: 1041761 (1912-10-01), Evans
patent: 1129656 (1915-02-01), Evans
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patent: 1430936 (1922-10-01), Brunner
patent: 1465426 (1923-08-01), Espenschied
patent: 1604569 (1926-10-01), Hammick
patent: 1714649 (1929-05-01), Walouke
patent: 1760183 (1930-05-01), Swift
patent: 1957544 (1934-05-01), Klemme
patent: 3168088 (1965-02-01), Martin et al.
patent: 3237622 (1966-03-01), Best

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