| 摘要 |
A heat retriever having a shell provided with an inlet and an outlet for permitting a fluid to be circulated through the shell and heated by a retriever assembly including a vent pipe attachable to a flue pipe of a furnace. At least one, and preferably a plurality of retriever pipes are connected in parallel to the vent pipe within the shell for forming a bypass around a portion of the vent pipe of exhaust gas from the associated furnace flue pipe and exposing the fluid to be heated to a larger heat transfer surface. A blower is advantageously mounted on the inlet of the shell in order to provide a flow of forced air over the retriever pipes.
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