Heating systems – Air
Patent
1982-09-30
1984-09-04
Makay, Albert J.
Heating systems
Air
126121, 165DIG2, F24B 118
Patent
active
044692765
ABSTRACT:
The present invention discloses a heat recovery apparatus, for example for use in a fireplace having a firebox with an upwardly directed flue of selected peripheral configuration communicating with the firebox and having an atmospheric outlet. The apparatus includes units to be inserted or otherwise received and contained in the flue and having first heat conductive conduit means of selected cross section to extend generally the length of the flue in parallel spaced relation from one side of the flue, generally upwardly extending heat conductive smoke conduit in parallel spaced relation from the first conduit and communicating with the firebox and the atmosphere for emission of combustion products from the firebox, first plenum chamber means disposed at the flue outlet to seal a portion of the outlet of the flue where the smoke conduit passes through the first plenum chamber and where the first conduit communicates with the first plenum chamber, wall means defining a second conduit and extending downwardly from the bottom of the first plenum chamber in spaced parallel relation from the first conduit and defining a second annular plenum chamber surrounding the smoke conduit where the second conduit communicates with the first plenum so air can be passed through the first conduit, first plenum chamber, and second plenum chamber to a space to be heated and blower means to move or circulate a stream of air through the first conduit means and through the first and second plenum chamber, to the space to be heated.
REFERENCES:
patent: 2524843 (1950-10-01), Slifer et al.
patent: 4043313 (1977-08-01), Sherman
Bennett Henry
Makay Albert J.
Steutermann Edward M.
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