F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
F24H 1/20 (2006.01) F22B 7/12 (2006.01) F24H 1/36 (2006.01) F28D 1/04 (2006.01)
Patent
CA 2556470
A fuel-fired water heater has a single pass condensing-type heat exchanger disposed within its water storage tank portion. The heat exchanger includes a primary non-condensing portion defined by a combustion chamber positioned in an upper interior portion of the tank and having a spaced series of vertical tubes depending therefrom. A secondary condensing portion of the heat exchanger is defined by a plenum having a top side connected to the bottom ends of the vertical tubes, and a bottom side from which a downwardly coiled flue tube depends. A fuel burner generates hot combustion gases that are sequentially flowed into the combustion chamber and then downwardly through the balance of the heat exchanger in a single pass.
Haney Jeffrey M.
Missoum Ozzie
Stephens Phillip W.
Welk Gregory M.
Zhang Qian
Blake Cassels & Graydon Llp
Rheem Manufacturing Company
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