Electric resistance heating devices – Heating devices – With heat storage means
Patent
1994-10-20
1997-12-30
Hoang, Tu B.
Electric resistance heating devices
Heating devices
With heat storage means
392341, 392441, 392451, 392497, 126361, F24H 700, F24H 120
Patent
active
057039984
ABSTRACT:
Hot water heaters are provided which contain improved temperature control devices and multiple resistance wire heating elements. The temperature control devices selectively deactivate at least one of the resistance wires to conserve electricity and preserve a steady-state hot beverage or hot water service temperature.
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Hoang Tu B.
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