Combustion chamber with high temperature protective coating

Details Combustion chamber with high temperature protective coating Combustion chamber with high temperature protective coating

2005-08-02

2005-08-02

Wilson, Gregory (Department: 3749)

Liquid heaters and vaporizers

Stand boiler

C122S017100, C122S018100

Reexamination Certificate

active

06923148

ABSTRACT:
A combustion chamber for a gas-fired hot water heater comprises a top wall which is defined by a bottom wall of an inner tank. A flue extends through the inner tank bottom wall. A circumferential skirt is disposed about the combustion chamber. The combustion chamber is supported elevated from a support surface by a bottom pan assembly of a hot water heater housing. A combustion air inlet means leads to the combustion chamber. A floor shield is supported above the bottom wall and spaced below a gas burner assembly. The circumferential skirt and/or the floor shield are coated on at least one surface thereof with refractory paint to reflect radiant heat inwardly in the combustion chamber whereby to maximize heat transferred to the inner tank and to minimize heat loss through the skirt and floor shield.

REFERENCES:
patent: 6202935 (2001-03-01), Akkala et al.
patent: 6418884 (2002-07-01), Rucker
patent: 6698385 (2004-03-01), Lesage
patent: 6725811 (2004-04-01), Moore et al.

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