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

Furnace

Patent ·
OSTI ID:6797802
A furnace for the burning of wood in a combustion chamber to generate heat. Primary air is brought in at a grate level of the furnace. Secondary air is brought in through a secondary air inlet, past a preheat chamber and through a secondary air duct to be expelled through holes in the secondary air duct at the top level of flames. The secondary air is preheated in the preheat chamber which is located between the combustion chamber of the furnace and the outside air inlet. A heat exchanger in the top of the oven transfers the heat from the combustion chamber of the furnace to ductwork for distribution.
Assignee:
EDB-83-043933
Patent Number(s):
US 4343288
OSTI ID:
6797802
Country of Publication:
United States
Language:
English