Heating systems – Air – Flue heated
Patent
1975-09-08
1977-08-30
Camby, John J.
Heating systems
Air
Flue heated
126116A, 126110R, 165DIG2, 165 76, 165137, F24B 702
Patent
active
040449505
ABSTRACT:
A fuel-burning forced-air-circulating heating system having a thermostatically controlled heavy-duty blower, and a constantly operable relatively low-powered supplemental air-circulating attachment for forcing air from the cold-air-return plenum to the hot-air-feed plenum of a conventional hot-air furnace. The supplemental attachment bypasses the furnace so that the air-flow resistance of the air filter of the furnace minimizes reverse air-flow through the furnace, resulting in a gentle temperature-equalizing circulation of air through the rooms being heated. Preferably, and very importantly, the supplemental attachment may include a heat-exchanger associated with the furnace flue to further improve the thermal efficiency of the system thus modified.
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patent: 3739767 (1973-06-01), Peters
patent: 3944136 (1976-03-01), Huie
Engeling Charles F.
Staubly Ralph F.
Camby John J.
Staubly Ralph F.
Yuen Henry C.
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