Forced air heating fireplace unit
A forced air heating fireplace unit is described. The unit is installed in a framed in opening provided for a fireplace during the erection of a building and including a generally rectangular metal firebox spacedly encased within a metal housing connected at its upper end to a chimney flue. A vertically disposed air inlet pipe enters the flue above the unit and extends downwardly of the rear thereof and introduces air into an air distribution chamber at the lower end thereof from which air is circulated forwardly and upwardly through a series of spaced pipes into the bottom of the firebox below a grate therein so that air within the firebox is heated from the grate and exits upwardly through the main heat duct and chimney flue. A series of heating cores embodying closely spaced parallel aluminum plates are attached exteriorly to the side, rear and top walls of the firebox and extend at right angles thereto in the space between the firebox and housing so that a circulating blower associated with the unit introduces atmospheric air into and upwardly over the heating cores for heating through the fireplace walls. Spaced parallel air transfer pipes extend angularly upwardly and forwardly across the upper end of the firebox and through the rear and front walls thereof so that air flowing upwardly over the unit walls is caused to flow through and is heated in the transfer pipes and exits through the front of the firebox and the fireplace wall into the room and into the main heat duct for transfer to and the heating of other areas. As the transfer pipes are heated from within the firebox and the air flowing therethrough is also heated during its passage over the firebox walls and through the heating cores, maximum heat is extracted from the firebox and is introduced into the areas being heated.
- Assignee:
- IFI; EDB-81-056781
- Patent Number(s):
- US 4223833
- OSTI ID:
- 6803169
- Resource Relation:
- Patent File Date: Filed date 8 May 1979
- Country of Publication:
- United States
- Language:
- English
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