Stoves and furnaces – Liquid heater
Patent
1975-08-06
1977-11-22
Camby, John J.
Stoves and furnaces
Liquid heater
F24B 704
Patent
active
040590909
ABSTRACT:
A fireplace heating unit is disclosed which will efficiently heat the interior of a structure. The unit includes a firebox surrounded by a housing. The housing is vented to the outside at the rear thereof and to the interior of the structure at the front thereof, over the firebox. Exterior air is drawn into the housing through the rear vent and circulated around the firebox and through conduits extending through the chimney flue whereby it is quickly heated. The heated air is then exhausted into the room through the front vent. A portion of the front of the housing may mount a movable glass door having a controlled air inlet therein to control combustion of fuel in the firebox. The door also provides access to the firebox and may be opened to permit use of the firebox as a conventional fireplace, if desired. In one embodiment a zero clearance unit is provided, having a novel bypass to divert at least a portion of the flow of heated air from the interior of the housing into the flue. In another embodiment, a free standing unit is provided which uses a novel baffle means within the housing whereby exterior air may be drawn into the housing and circulated without a fan means. Both housing embodiments may have double, spaced upstanding walls to insulate the unit.
REFERENCES:
patent: 737382 (1903-08-01), Frederick
patent: 1697635 (1929-01-01), Cornelius
patent: 2048675 (1936-07-01), Baruch et al.
patent: 2110060 (1938-03-01), Cage
patent: 2527930 (1950-10-01), Howrey
patent: 2642859 (1953-06-01), Brown
patent: 3762391 (1973-10-01), Andrews
Camby John J.
Humboldt Holdings, Inc.
Schwartz Larry I.
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