F - Mech Eng,Light,Heat,Weapons – 23 – L
Patent
F - Mech Eng,Light,Heat,Weapons
23
L
341/29
F23L 3/00 (2006.01) F23N 3/08 (2006.01)
Patent
CA 1102901
TITLE ENERGY SAVING FLUE DAMPER INVENTORS Terrence J. MASSE and Fouad BARSOUM ABSTRACT Disclosed is a flue damper mechanically driven through a sensor control to change the physical position of a damper within a flue associated with a furnace or other combustion device. By means, after the demand for ignition of the furnace, the flue damper is rotated slowly into the full open position whereupon ignition of the furnace is permitted. After the demand has been satisfied, the ignition is ceased and at a predetermined time thereafter the damper is slowly moved to the closed position whereby to inhibit completely, in the cases of oil fired devices, and to a substantial degree (a maximum of 90%), in gas fired devices, the orifice size of the exhaust flue thereby preserving the residual heat within the boiler or fire box which would otherwise escape through the flue into the atmosphere. Such device decreases, in excess of 15%, the amount of energy consumed by reducing the cool-down effects of the fire box or boiler. The device also stops migration of warm air from the building through the fire box into the flue and its escape into the atmosphere. The latter problem is really more severe in water retaining boilers (hot water heating) and particularly so, where, the heated environment or building is controlled by so called "zone" techniques, wherein, by the control mechanism of the furnace the boiler is maintained within a predetermined range of temperatures, and the thermostats which control the heating into the various zones of the premises call on and off heat by activating a circulation pump.
346690
Barsoum Fouad
Masse Terrence J.
Mastec Engineering Limited
Mitches & Co.
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