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

Bi-loop heat recovery system

Patent ·
OSTI ID:5507018
A heating system for dwellings or other enclosures includes a furnace in which a burner is isolated from a hot air or water system, and receives substantially all of its combustion air from outside the enclosure and preheated. A heat exchanger is provided between exhaust gases from the burner of the furnace and the combustion air.
Assignee:
IFI; EDB-82-078787
Patent Number(s):
US 4300527
OSTI ID:
5507018
Country of Publication:
United States
Language:
English