Fireplace insert with forced air flow heat exchanger

Patent · Tue May 03 04:00:00 EDT 1983

OSTI ID:5989621

Reges, J C

A heater for use as a fireplace insert, but which may be modified to function as a free standing heater. The heater includes an inner firebox having inner bottom, top, rear and opposite side walls interconnected along adjacent marginal edges to form a combustion chamber therein. An outer housing is provided for snug reception within a fireplace and the housing includes outer bottom, top, rear, front and opposite side walls. The firebox is received within the housing with at least major portions of the inner bottom, top, rear and opposite side walls spaced inwardly from opposing portions of the outer bottom, top, rear and opposite side walls and the outer front wall closes the front of the firebox. Circulating air inlet structure opens through the front wall into the space between a first set of opposing surfaces of corresponding inner and outer walls and air outlet structure opens through the front wall from the space between a second set of opposing surfaces of corresponding inner and outer walls. The inner and outer walls include coacting portions defining a tortuous path for circulating air to be heated between the inner and outer walls and the tortuous path extends between major portions of the bottom walls, the rear walls, the top walls and the side walls. An access opening is formed in the front wall for providing access to the interior of the combustion chamber and an access door removably closes the access opening.

• Assignee: EDB-83-142217
• Patent Number(s): US 4381760
• OSTI ID: 5989621
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR FLOW
DESIGN
EFFICIENCY
FIREPLACES
FLUID FLOW
GAS FLOW
HEAT EXCHANGERS
HEATING
SPACE HEATING