Chimney heat exchange system

Heat exchange – Structural installation

Reexamination Certificate

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Details

C165S048100, C165S053000, C237S00200B

Reexamination Certificate

active

06886626

ABSTRACT:
A heat pump circuit is installed into the inner cavity of a chimney servicing a dwelling with the exterior heat pump coil mounted in an annular gap formed around the upper chimney end. A fan driven by the chimney draft then rotates an exterior rank of blade segments above the annular space to draw ambient air across the exterior coil. A set of gated apertures in the chimney wall both above and below the flue damper then directs zoned airflows up into the chimney and across the inner coil that is deployed at the lower, interior chimney opening.

REFERENCES:
patent: 4204409 (1980-05-01), Satama
patent: 4420034 (1983-12-01), VanderVaart
patent: 4687133 (1987-08-01), Karlstedt
patent: 5074464 (1991-12-01), Moore et al.
patent: 5619864 (1997-04-01), Reedy
patent: 5924390 (1999-07-01), Bock
patent: 6434969 (2002-08-01), Sosnowski

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