Electric resistance heating devices – Heating devices – Combined with nonelectric heating means
Patent
1997-11-25
1999-09-28
Walberg, Teresa
Electric resistance heating devices
Heating devices
Combined with nonelectric heating means
392441, F24C 100
Patent
active
059601574
ABSTRACT:
A water heater for a recreational vehicle which employs both gas and electric powered system for heating the water within the water heater, wherein both the gas powered and electric powered systems are controlled through a single user interface control. The present invention provides a water heater for a recreational vehicle wherein a hot surface ignition system is used in conjunction with the gas burner and the electric resistance coil is immersed within the water such that either gas stored on board the recreational vehicle, or land-based electrical power can be used to heat the water either independently or in combination. Through the use of a single temperature sensor, and a single operator control, the water can be most efficiently brought up to the appropriate temperature in the most convenient manner for the user. Moreover, the present invention includes a built-in safety system, which does not require a separate energy cut-off switch, to insure that the water within the tank will not rise above an unacceptably safe temperature.
REFERENCES:
patent: 4893610 (1990-01-01), Kang
patent: 5632614 (1997-05-01), Consadori et al.
Atwood Mobile Products Inc.
Van Quang
Walberg Teresa
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