Stoves and furnaces – Fireplaces or accessories – With heat exchanger for room heating air
Patent
1989-04-03
1990-03-20
Yeung, James C.
Stoves and furnaces
Fireplaces or accessories
With heat exchanger for room heating air
126 85B, 126521, 126527, F24B 700
Patent
active
049092278
ABSTRACT:
The fireplace has a coaxial vent directly venting the exhaust gas through its top. The fresh air is directed through an outer jacket of the coaxial vent to a chamber located between the firebox and the rear panel and enters into the lower portion of the firebox while the exhaust air is conducted through the inner coaxial duct, located inside the fresh air duct, to be released to the outdoor. Residual heat in the exhaust gas is inherently recycled by the fresh air being drawn into the fireplace to enhance combustion and to increase the efficiency for heating purposes.
REFERENCES:
patent: 3056397 (1962-10-01), Little
patent: 4141336 (1979-02-01), Fitch
patent: 4519376 (1985-05-01), Schoeff et al.
patent: 4553528 (1985-11-01), Wells
patent: 4793322 (1988-12-01), Shimek et al.
Wong David W.
Yeung James C.
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