Outside wood-burning furnace

Details Outside wood-burning furnace Outside wood-burning furnace

1997-12-29

2000-02-29

Lazarus, Ira S.

Stoves and furnaces

Hot-air furnaces

Combined with boiler

126197, 126285R, 110173R, 110175R, 122498, 236 99R, F24D 900, F23M 700, F23M 704, G05D 2312

Patent

active

060296488

ABSTRACT:
A natural draft furnace has a firebox inside a water box with fire tubes containing water running through the firebox, flues from the firebox running through the water box, a front/fire door of double wall construction to preheat entering air, a damper in the fire door and a toggle-lock latching system on the fire door that provides uniform sealing pressure around the door.

REFERENCES:
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patent: 3976245 (1976-08-01), Cole
patent: 4145259 (1979-03-01), Leumann
patent: 4360152 (1982-11-01), Schlatter et al.
patent: 4383519 (1983-05-01), Katona
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patent: 4461242 (1984-07-01), Black
patent: 4461243 (1984-07-01), Carpaneto
patent: 4479605 (1984-10-01), Billotte et al.
patent: 4497262 (1985-02-01), Nordine
patent: 4612878 (1986-09-01), Schnurer
patent: 4724798 (1988-02-01), Alspaugh
patent: 4779795 (1988-10-01), Winmill
patent: 5329920 (1994-07-01), Brazier
patent: 5377661 (1995-01-01), Farver

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