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

Conservation of energy heater

Patent ·
OSTI ID:7153081
An auxiliary air preheater is described for use in prewarming interiors of vehicles having engine preheating means employing a heated fluid for prewarming the engine prior to operation of the vehicle. The auxiliary heater includes an insulated housing surrounding a section of conduit employed for conveying heated fluid employed in the engine preheating operation. Air is circulated through the housing in contact with the heated fluid conduit and is blown into the vehicle compartment. Air may be returned from the vehicle compartment through the auxiliary air preheater housing for recirculation through the passenger compartment.
Assignee:
TIC; EDB-76-092210; ERA-02-003409
Patent Number(s):
US 3970247
OSTI ID:
7153081
Country of Publication:
United States
Language:
English