Wood burning heater providing improved uniform temperature outpu

Details Wood burning heater providing improved uniform temperature outpu Wood burning heater providing improved uniform temperature outpu

1982-05-10

1984-05-01

Scott, Samuel

Stoves and furnaces

Stoves

Heating

126 77, 126 71, F24C 114

Patent

active

044454961

ABSTRACT:
A solid fuel burning heater with improved efficiency in burning logs. A housing is divided by a louvered internal wall into front and back sections having combustion and heating chambers respectively. The louvered wall terminates below the top of the housing providing a crossover space through which hot, combusted gases flow from the combustion chamber to the heating chamber. A vertical heat transfer duct extends through the top and bottom of the housing and has open ends in free communication with external ambient air. Front and rear flues are connected to the combustion and heating chambers and these are interconnected by a main flue leading to a chimney. A damper is provided in the front flue. The combustion chamber comprises a primary combustion zone on a fuel-supporting grate and a secondary combustion zone above it. Adjustable draft openings at the front of the housing control air input to the combustion zones. A draft tube with an open inlet end at the back of the housing extends forwardly and upwardly through the heating chamber to preheat air within it and has exit openings in the secondary combustion zone. A valve in the draft tube precisely controls the volume of secondary air input for long term maintenance of a banked fire with minimum smoke generation.

REFERENCES:
patent: 31892 (1861-04-01), Leeds
patent: 921019 (1909-05-01), Speer
patent: 1636089 (1927-07-01), Blackman
patent: 1663937 (1928-03-01), Ehrich
patent: 4184473 (1980-01-01), McIntire

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