Flue restrictor

Details Flue restrictor Flue restrictor

F - Mech Eng,Light,Heat,Weapons

23

L

126/90

F23L 13/00 (2006.01) F23L 11/00 (2006.01) F23L 13/06 (2006.01)

Patent

CA 1247956

ABSTRACT OF THE DISCLOSURE A flue restrictor to control air flow in a com- bustion apparatus having an exhaust system that includes a flue. The restrictor has a housing to be attached in the flue. There is a first valve member located in the housing and a second valve member located in the housing. Each valve member is composed of open and closed areas, and cooperates with the other valve member to act as a valve. Movement of one valve member relative to the other controls air flow in the restrictor, and thus in the combustion apparatus. The restrictor provides sen- sitive control and ease of adjustment in position. -12-

534125

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