Recuperative heating system

Patent · Tue Sep 13 00:00:00 EDT 1977

OSTI ID:6607267

Galluzzo, V

A recuperative heating system has a heat conductive chimney flue; a fuel combustion chamber exhausting hot waste gases and smoke upwardly through the flue; coaxial ducts about the flue, defining a fresh air flow path downwardly from a cool air intake along the outer duct and upwardly along the inner duct into direct heat exchange relationship with the outer surface of the flue and exhausting outwardly from the inner duct into a warm air room vent; and a plurality of U-shaped conduit tubes, each having its bight within the flue. The legs of each U-shaped tube are of different lengths with the inlet end on the longer leg opening into the outer duct and the outlet end on the shorter leg opening into the inner duct.

• Assignee: TIC; ERA-04-016480; EDB-79-025821
• Patent Number(s): US 4047490
• OSTI ID: 6607267
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
APPLIANCES
BUILDINGS
CAVITIES
CHIMNEYS
DESIGN
ENERGY
ENERGY CONSERVATION
ENERGY SOURCES
EQUIPMENT
FIREPLACES
FLUE GAS
FURNACES
GASEOUS WASTES
HEAT
HEAT RECOVERY EQUIPMENT
HEAT SOURCES
OPERATION
STOVES
WASTE HEAT
WASTES