Valve for furnace stack pipe

Stoves and furnaces – Dampers – Stovepipe

Patent

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Details

98 48, 126312, 236101D, F23J 300

Patent

active

045439419

ABSTRACT:
A valve is 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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