Heating system

Details Heating system Heating system

1976-09-15

1977-10-04

Camby, John J.

Heating systems

Miscellaneous

Special liquid

237 2B, 237 8R, 126271, 126400, 165 29, F24D 300

Patent

active

040520013

ABSTRACT:
The water for a central heating system is supplied with thermal energy in a boiler equipped with an oil burner and with a thermostatically controlled mixing valve that mixes the water heated in the boiler with water from a return line by-passing the boiler to maintain a desired temperature in the heating fluid. A secondary heat source (heat pump, wood-burning boiler, solar unit) is connected to the by-pass and automatically actuated when it can effectively relieve the oil burning boiler.

REFERENCES:
patent: 2781174 (1957-02-01), Smith
patent: 3984050 (1976-10-01), Gustafsson
patent: 3986664 (1976-10-01), Gustafsson
patent: 3989183 (1976-11-01), Gustafsson
patent: 3996759 (1976-12-01), Meckler
patent: 4007776 (1977-02-01), Alkasab
patent: 4012920 (1977-03-01), Kirchbaum

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