Condensing furnace

Details Condensing furnace Condensing furnace

1986-06-05

1988-10-25

Davis, Jr., Albert W.

Heat exchange

Conduit within, or conforming to, panel or wall structure

Opposed plates or shells

165164, 126108, 126 99R, F24H 310, F28F 304

Patent

active

047796766

ABSTRACT:
A compact, high efficiency condensing furnace includes a combustion chamber and a pair of radiators. The temperature of the combustion gases is reduced in one of the radiators to the point at which combustion products condense, thereby extracting the latent heat of vaporization from these combustion products. Each of the radiators has an inlet and an outlet and a baffle between the inlet and outlet to prevent combustion gases from passing directly from the inlet to the outlet. Additional turbulence-providing baffles can be provided within the radiators if desired. A combustion air inlet pipe extends through a recess in the bottom of each radiator to the combustion chamber, and a gas burner tube extends generally concentrically within the combustion air inlet pipe to provide a gas flame within the combustion chamber. A flame spreader plate directs the flame toward the bottom of the combustion chamber.

REFERENCES:
patent: 2231227 (1941-02-01), Scott
patent: 2613920 (1952-10-01), Flint
patent: 3593783 (1971-07-01), Muller et al.

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