heat pump
device that transfers thermal energy in the opposite direction of spontaneous heat transfer
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A heat pump is a device that moves heat from one place to another, working against the natural tendency of heat to flow from hot to cold areas. This matters because it can efficiently heat or cool buildings by relocating existing thermal energy rather than generating new heat, making it a more energy-efficient alternative to traditional heating and cooling systems.
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External heat exchanger of an air-source heat pump for both heating and cooling Mitsubishi Electric heat pump interior air handler wall unit
A heat pump is a device that uses mechanical or thermal energy to transfer heat from one space to another. The mechanical heat pump uses electric power to transfer heat by compression. Specifically, it transfers thermal energy by means of a heat pump and refrigeration cycle, cooling one space and warming the other. Heat pumps driven by thermal energy are known as absorption heat pumps.