F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
F23D 14/72 (2006.01) F23N 5/24 (2006.01) F24H 9/20 (2006.01)
Patent
CA 2359395
A gas-fired water heater has a combustion chamber with a bottom wall defined by a perforated flame arrestor plate forming a portion of a flow path through which combustion air may be supplied to a burner structure within the combustion chamber. During firing of the wager heater a combustion air shutoff system senses an undesirable temperature increase in the combustion chamber, caused by for example a partial blockage of the flow path, and responsively terminates further air flow into the combustion chamber, thereby shutting down the burner, prior to the creation in the combustion chamber of a predetermined elevated concentration of carbon monoxide.
Campbell James T.
Elder Gary A. .
Hotton Bruce A.
Kidd Larry D.
Lannes Eric M.
Bradford White Corporation
Gowling Lafleur Henderson Llp
Rheem Manufacturing Company
The Water Heater Industry Joint Research And Development Consort
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