Water heater with flame spill-out prevention arrangement

Liquid heaters and vaporizers – Stand boiler – Fluid fuel burner

Patent

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Details

122 14, F22B 500

Patent

active

049248162

ABSTRACT:
A water heater having the inner door that closes the inner access opening leading into the combustion chamber formed as a component part of a unitary manifold assembly which also includes the main burner with its manifold gas supply tube, the pilot burner with its gas supply tube, and the pilot burner control thermocouple with its support tube. The inner door thus may not be removed for servicing of the water heater unless the complete manifold assembly is removed from the inner access opening, in which case the water heater is then rendered inoperative and incapable of main burner ignition to produce burner flames which could otherwise spill-out through an uncovered inner access opening left open by an unreplaced inner door. The inner door component of the manifold assembly has a pilot burner lighting port which is normally closed off by a spring loaded door and which also enables observation of the pilot and main burner flames.

REFERENCES:
patent: 1828023 (1931-10-01), Brill
patent: 2687747 (1954-08-01), Bock
patent: 3091223 (1963-05-01), Vitale
patent: 3110302 (1963-11-01), Buehl
patent: 4328791 (1982-05-01), Moore, Jr. et al.

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