Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Bi-loop heat recovery system for an oil fired furnace

Patent ·
OSTI ID:5742263

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-82-065457
Patent Number(s):
US 4294223
OSTI ID:
5742263
Country of Publication:
United States
Language:
English