Control mechanism for a gas-fired water heater

Details Control mechanism for a gas-fired water heater Control mechanism for a gas-fired water heater

1978-10-27

1981-05-19

Garbe, Stephen P.

Stoves and furnaces

Liquid heater

Fluid fuel burner for other than top-accessible vessel

431 49, F24H 110

Patent

active

042678200

ABSTRACT:
A control mechanism for a gas-fired hot water heater, which operates without a permanent burner pilot, has an electrical circuit for selectively operating an igniter in response to gas pressure in the heating system. The water heater has a main chamber for providing gas to the igniter pilot and the burner element, and a secondary chamber for providing gas to a safety pilot. Circuitry responsive to a high gas pressure in the main chamber activates the igniter and circuitry responsive to a high gas pressure in the secondary chamber interrupts operation of the igniter. Continuous operation of the igniter element is thereby prevented, for example, due to a low gas pressure condition.

REFERENCES:
patent: 2390172 (1945-12-01), Ray
patent: 2411230 (1946-11-01), Ray
patent: 2437894 (1948-03-01), Ray
patent: 2564869 (1951-08-01), Weber
patent: 2610682 (1952-09-01), Weber
patent: 2652110 (1953-09-01), Main
patent: 3765452 (1973-10-01), Charron
patent: 3815813 (1974-06-01), Charron

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