Passive solar energy water preheat system using non-freezing hea

Stoves and furnaces – Tool having fluid fuel burner – Curling iron

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126419, 126435, 137433, 13753311, 251 11, 236 93R, F24J 302

Patent

active

044136153

ABSTRACT:
A sealed thermosiphoning solar energy system is disclosed which uses oil as a nonfreezing transport fluid. The oil is heated in an absorber exposed to the sun's radiation, passes through a check valve and into thermal exchange with a second fluid. Expansion means are provided to prevent excessive pressure buildup in the system.

REFERENCES:
patent: 1971242 (1934-08-01), Wheeler
patent: 2842155 (1958-07-01), Peters
patent: 4050508 (1977-09-01), Buckley
patent: 4103673 (1978-08-01), Woodworth et al.
patent: 4137964 (1979-02-01), Buckley
patent: 4326499 (1982-04-01), Koskela

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