Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1997-08-19
1998-11-03
Paschall, Mark H.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219501, 219494, 236 46R, 392441, H05B 102
Patent
active
058312501
ABSTRACT:
A water heater comprising a water tank and an electric resistance heating element extending into the water tank for heating water in the tank, including a proportional band temperature controller for conducting electric power to the electric resistance heating element in bursts, each burst of electric power followed by a period during which the temperature controller does not conduct power to the electric resistance heating element, wherein, each burst of electric power comprises about 95% or less of a cycle comprised of one burst of electric power followed by the period during which the temperature controller does not conduct electric power.
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