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U.S. Department of Energy
Office of Scientific and Technical Information

Combustion heater

Patent ·
OSTI ID:6576143
A wood burning combustion heater comprises a combustion chamber for long logs arranged to burn down from one end to the other in cigar-like fashion, an after-burner tube arrayed above and essentially parallel to the elongated logs with the air and burned gasses following an S-shaped path through the combustion chamber and out through the exhaust tube, an after-burner within said tube and a heat exchanger fed by the exhaust from said tube for heating air in indirect heat exchange and characterized further by an incoming air passage annulus surrounding the combustion chamber for pre-heating thereby; multiple levels of air admission for controlling combustion; electric ignition at the after-burner; bathing the exhaust tube, containing the afterburner, in flame through admission of secondary air to the region outside such tube; and high mass for even dissipation of heat.
Assignee:
IFI; EDB-81-050818
Patent Number(s):
US 4228783
OSTI ID:
6576143
Country of Publication:
United States
Language:
English

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