Variable volume energy saving water heater

Details Variable volume energy saving water heater Variable volume energy saving water heater

2008-07-14

2010-12-28

Campbell, Thor S (Department: 3742)

Electric resistance heating devices

Heating devices

Tank or container type liquid heater

C392S449000, C122S234000

Reexamination Certificate

active

07860380

ABSTRACT:
The present invention relates generally to apparatuses used for the heating of water and relates more specifically to water heaters in which the volume of water heated and stored may be fluctuated in response to the changing demand for heated water. The household demand for hot water depends on a variety of factors, including the number of people living in the household. It is therefore desirable to have a water heater in which the amount of water heated and stored may be varied so as to compensate for the changing hot water demand. The present invention is a variable volume water heater that can be used to accomplish this goal of matching the supply and demand of heated water.

REFERENCES:
patent: 3621566 (1971-11-01), Welsh
patent: 4409958 (1983-10-01), Fillios

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