Heating systems – Automatic control – Water
Patent
1980-03-10
1982-08-17
Davis, Albert W.
Heating systems
Automatic control
Water
165 40, 165 76, 165DIG12, 122 20B, F24D 300
Patent
active
043445683
ABSTRACT:
A closed-loop heat-transfer system includes in combination an exhaust chamber for positioning in series with a chimney flue of a heating system wherein the exhaust chamber has an exhaust inlet and an exhaust outlet opening adapted for connecting the chamber to the chimney flue. The exhaust chamber includes a first heat exchanger having a fluid inlet opening and a fluid outlet opening and a coiled conduit positioned interior to the chamber interconnecting the fluid inlet and outlet openings. The heat-transfer system also includes a second heat exchanger for positioning in a location remote to the chimney flue, and the second heat exchanger also has a fluid inlet opening and a fluid outlet opening. A conduit couples the fluid openings of the first heat exchanger to the fluid openings of the second heat exchanger to form a closed circulatory loop for a heat-transferring fluid. The closed fluid circulatory loop includes a pump for circulating the fluid therethrough and a temperature-actuated control responsive to the fluid temperature. In one embodiment, the pump and temperature-actuated control are mounted to the exterior of the exhaust chamber to form an integrated heat-transfer assembly which is easily installed in the chimney flue of the heating system.
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Stewart Carl W.
Stewart Owen E.
Davis Albert W.
Focarino Margaret A.
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