Ductless forced-circulation undercounter furnace

Stoves and furnaces – Hot-air furnaces – Compressed air

Patent

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Details

126 85B, F24H 310

Patent

active

041542134

ABSTRACT:
A heat exchanger assembly for an undercounter furnace includes first and second complementary, flanged sidewalls shaped to provide a fire chamber. Integral lower combustion air intake and upper exhaust flue are formed from the same sheet metal as the sidewalls. The width of the fire chamber is less than its height and length. A circulating fan is located behind the fire chamber and between the intake and flue ducts, taking room air from the rear of the casing and forcing it forwardly to sweep over both sidewalls and into the room to be heated. The heat exchanger is mounted to a removable chassis.

REFERENCES:
patent: 2864359 (1958-12-01), Vaughn
patent: 3120225 (1964-02-01), Stark et al.
patent: 3267928 (1966-08-01), Spooner
patent: 3361125 (1968-01-01), Hershey
patent: 3384070 (1968-05-01), Castello et al.
patent: 3628521 (1971-12-01), Hodges
patent: 3680541 (1972-08-01), Honaker, Jr.
patent: 3916870 (1975-11-01), Beavers

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