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The ornamental design for a fireplace heat exchanger, as shown and described. |
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FIG. 1 is a perspective view of a fireplace heat exchanger showing my new design;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a side elevational view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a front elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The conventional cord has been shown fragmentarily in FIGS. 1 and 2 for ease of illustration.
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| Patent | Priority | Assignee | Title |
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Oct 21 1986 | WALKER, CROSWELLER & COMPANY, LIMITED | Caradon Mira Limited | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 004653 | /0643 |
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