skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Heating system

Patent ·
OSTI ID:7085925

A fireplace heating system is described comprising: a firebox having opposite side walls, a back wall extending between said side walls and an open front side spaced from and opposite said back wall; an angulated stack connected to the firebox at the upper side thereof and extending generally upwardly from the firebox, said stack having a lower portion, a central portion projecting vertically from said lower portion, and an upper portion extending upwardly and rearwardly in the direction of the back wall of the firebox from said central portion; housing means around the firebox and stack and defining with the firebox and stack an air plenum chamber, said housing means including: an upper portion surrounding, and spaced from, the upper portion of said stack and having an upper air opening at the forward, top side of said upper portion and spaced upwardly from the open front side of said firebox, said upper air opening being positioned opposite said stack; and a base portion including: a bottom wall; side walls spaced horizontally from the side walls of the firebox to define a portion of said air plenum chamber, one of said side walls having a hot air discharge opening therethrough adjacent and above said bottom wall, said hot air discharge opening being aligned with the lowermost portion of said firebox and adapted for connection to a forced air device; and a back wall spaced horizontally rearwardly from the back wall of the firebox and interconnecting the side walls of said base portion, said space between said base portion back wall and the back wall of the firebox forming a portion of said air plenum cahamber; said base portion having horizontally spaced lower air openings in horizontal alignment with the open front side of the firebox and on opposite sides of said firebox opening.

Assignee:
IFI; ERA-06-003815; EDB-81-001407
Patent Number(s):
US 4214570
OSTI ID:
7085925
Resource Relation:
Patent File Date: Filed date 23 Mar 1978
Country of Publication:
United States
Language:
English