Non-dilution blower apparatus for high efficiency water heater

Details Non-dilution blower apparatus for high efficiency water heater Non-dilution blower apparatus for high efficiency water heater

F - Mech Eng,Light,Heat,Weapons

24

B

F24B 7/06 (2006.01)

Patent

CA 2703470

A blower housing of novel two-piece construction is comprised of first and second housing parts of stamped or drawn sheet metal that are attached together. The two-piece construction provides the housing with two interior portions separated by an interior wall. The interior wall has an opening that is spaced from the aligned exhaust opening of the heater and the output opening of the housing. This creates a winding exhaust gas flow path through the blower housing. The interior wall is also provided with a recessed cavity that receives a portion of a fan rotated by a motor supported by the blower housing. Positioning of at least a portion of the fan in the cavity reduces the overall height dimension of the blower housing and facilitates the retrofitting of the blower housing between an existing exhaust opening of a heater and an axially aligned flue pipe.

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