| 摘要 |
A flue gas heat pump is provided for extracting heat from the discharged hot flue gas of a furnace. The heat pump includes a condenser at the inlet of the furnace cabinet in heat transfer relation with the flow of air to be conditioned, and an evaporator disposed at the outlet of the furnace heat exchanger for extracting heat therefrom. A compressor is provided for compressing a refrigerant and delivering it to the heat exchangers. The compressor is located in the flow path of the air to be conditioned so that the heat generated by the compressor is transferred thereto.
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