Valve for furnace stack pipe

Details Valve for furnace stack pipe Valve for furnace stack pipe

1981-05-15

1984-09-11

O'Connor, Daniel J.

Stoves and furnaces

Dampers

Stovepipe

98 48, 126312, F23L 300

Patent

active

044704011

ABSTRACT:
A valve for provided for installation in the auxillary duct of a furnace stack pipe. The valve prevents flow of air through the damper plate in the auxillary duct when the furnace is switched off. The valve is controlled by a temperature responsive bimetallic strip which is impinged upon by flue gases to move the valve to an open position upon the furnace being ignited and producing combustion gases.

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