Furnace

Details Furnace Furnace

1992-03-18

1994-03-22

Davis, Jr., Albert W.

Stoves and furnaces

Hot-air furnaces

Downdraft

126110R, 126116R, 165166, F24H 310

Patent

active

052954730

ABSTRACT:
A heating furnace is provided with a counterflow heat exchanger defining serpentine up flow fresh air passages and downflow combustion products passages. The exchanger is of sheet metal modular construction.

REFERENCES:
patent: 1873570 (1932-08-01), Frantz
patent: 2173280 (1939-09-01), Le Tourneau
patent: 2303157 (1942-11-01), Bush

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