Solar water heater

Details Solar water heater Solar water heater

1979-02-16

1981-03-24

Yeung, James C.

Stoves and furnaces

Tool having fluid fuel burner

Curling iron

126437, F24J 302

Patent

active

042573971

ABSTRACT:
An apparatus for heating water with solar radiation incorporates an auxiliary heating unit, external to the hot water reservoir and bypassing the solar heating element, for providing auxiliary water heating whenever the temperature in a selected portion of the reservoir decreases below a predetermined level. A common return conduit in combination with a single supply pump and a selector valve enable the auxiliary heating "by-pass" circuit to be simply and quickly added to already existing installations.

REFERENCES:
patent: 3299881 (1967-01-01), Koch
patent: 3991742 (1976-11-01), Gerber
patent: 4027821 (1977-06-01), Hayes
patent: 4050626 (1977-09-01), Awalt, Jr.
patent: 4061132 (1977-12-01), Ashton
patent: 4099338 (1978-07-01), Mullin
patent: 4137900 (1979-02-01), Brautigam

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