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  2. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    Propane may be the most suitable for high temperature heat pumps. [73] Ammonia (R717) and carbon dioxide also have a low GWP. As of 2023 smaller CO 2 heat pumps are not widely available and research and development of them continues. [74] A 2024 report said that refrigerants with GWP are vulnerable to further international restrictions. [75]

  3. Air source heat pump - Wikipedia

    en.wikipedia.org/wiki/Air_source_heat_pump

    Propane may be the most suitable for high temperature heat pumps. [53] Ammonia (R717) and carbon dioxide also have a low GWP. As of 2023 smaller CO 2 heat pumps are not widely available and research and development of them continues. [54] A 2024 report said that refrigerants with GWP are vulnerable to further international restrictions. [55]

  4. California pushes heat pumps for all new homes starting 2026 ...

    www.aol.com/news/california-pushes-heat-pumps...

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  5. Heat pump and refrigeration cycle - Wikipedia

    en.wikipedia.org/wiki/Heat_pump_and...

    Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]

  6. Heat pumps needed at 'much faster rate' - watchdog - AOL

    www.aol.com/news/heat-pumps-needed-much-faster...

    Only about 5,000 heat pumps were installed in homes in 2022, way short of the 25,000 needed annually.

  7. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    An air source heat pump can be used to air condition the building during hot weather, and to warm the building using heat extracted from outdoor air in cold weather. Air-source heat pumps are generally uneconomic for outdoor temperatures much below freezing. In colder climates, geothermal heat pumps can be used to extract heat from the ground ...

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