Gas furnace energy saver

Patent · Tue Jul 31 04:00:00 EDT 1984

OSTI ID:6226822

Dragon, E S

A gas furnace is described which is of conventional design except for the means by which combustion air is supplied to the burner assembly. The gas furnace includes a cabinet having a burner assembly, heat exchanger and flue provided therein. The flue is in communication with a chimney extending upwardly from the building. An enclosure extends around the chimney and is spaced therefrom to define an air passageway. The upper end of the air passageway is in communication with the atmosphere outside of the building. Duct work connects the lower end of the air passageway with the combustion air opening formed therein so that combustion air for the burner assembly will be drawn from the outside atmosphere downwardly through the air passageway rather than from the interior of the building. As the air passes downwardly through the air passageway, the air is heated by the chimney.

• Assignee: EDB-85-023253
• Patent Number(s): US 4462385
• OSTI ID: 6226822
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
BURNERS
CHIMNEYS
CONTROL EQUIPMENT
DESIGN
DRAFT CONTROL SYSTEMS
ENERGY CONSERVATION
ENERGY RECOVERY
EQUIPMENT
FLOW REGULATORS
FLUE GAS
FURNACES
GAS FURNACES
GASEOUS WASTES
HEAT EXCHANGERS
HEAT RECOVERY
RECOVERY
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION
WASTES