Adjustable flue control for furnaces

Details Adjustable flue control for furnaces Adjustable flue control for furnaces

1980-09-26

1982-05-18

Yeung, James C.

Stoves and furnaces

Dampers

Stovepipe

126295, 236 45, F23L 300

Patent

active

043299679

ABSTRACT:
A damper type control for furnace flues which opens with commencement of oil burner operation and closes when combustion ceases. The damper is operated solely by the presence of draft created by the oil burner blower, and closes in the absence of such draft under the influence of a counterweight. With the occurrence of wind passing the open end of the flue, the pressure differential on either side of the damper also assists in maintaining the damper in closed condition.

REFERENCES:
patent: 2264590 (1941-12-01), Sabins
patent: 2620984 (1952-12-01), Larsen
patent: 2990118 (1961-06-01), Steinen

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