Unit for supplying combustion air to a furnace

Details Unit for supplying combustion air to a furnace Unit for supplying combustion air to a furnace

F - Mech Eng,Light,Heat,Weapons

23

N

342/29, 126/30

F23N 3/00 (2006.01) F23N 5/20 (2006.01)

Patent

CA 2016813

ABSTRACT OF THE DISCLOSURE An improved unit (10) which supplies combustion air (A) to a furnace (100) or hot water heater (200) is described. The unit includes a switch (59) which continues the operation of motor (14) and fans (12 and 15) in unit (10) until the hot flue gases (H) are vented and to cool exhaust gas pipe (22) after the furnace and/or hot water heater cease to operate to produce heat.

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