Circulating fireplace with adjustable controls for selectively h

Details Circulating fireplace with adjustable controls for selectively h Circulating fireplace with adjustable controls for selectively h

1977-09-30

1979-07-10

Yuen, Henry C.

Heating systems

Air

126121, 126400, 237 55, F24B 704

Patent

active

041605241

ABSTRACT:
A wood burning system for selectively heating one, or several, rooms in a structure, such system including a fireplace with a firebox, a chimney based on a thermal vacuum principle of operation, a combustion dome interconnecting the firebox and chimney, an inlet passage and an outlet passage defined in the bottom wall of the firebox, and a barrier situated between the inlet and outlet passage to control communication therebetween.
When the barrier in the firebox is closed and a glass door seals off the open side of the firebox, the outlet passage in the firebox introduces heated air for distribution through several rooms, while the inlet passage receives the return flow of thermally spent air from the ductwork. The thermally spent air passes over the fire in the firebox and escapes up the flue. When the barrier in the firebox is opened, direct communication is established between the inlet and outlet passages so that the firebox is isolated from the ductwork and the fireplace provides heat only to the room in which it is situated. The fireplace and ductwork comprise a closed-loop heating system.

REFERENCES:
patent: 1588587 (1926-06-01), Klaus
patent: 2333146 (1943-11-01), Beyer
patent: 2671440 (1954-03-01), Dupler
patent: 3888231 (1975-06-01), Galluzzo et al.
patent: 3926174 (1975-12-01), Bell
patent: 4010728 (1977-03-01), Hempel et al.
patent: 4043313 (1977-08-01), Sherman
patent: 4049194 (1977-09-01), Tice et al.
patent: 4051891 (1977-10-01), Harrison
patent: 4059090 (1977-11-01), Shaw

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