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  2. Freeze stat - Wikipedia

    en.wikipedia.org/wiki/Freeze_stat

    Air coil freeze stat. A freeze stat is a temperature sensing device for HVAC that monitors a heat exchanger to prevent its coils from freezing.Freeze stats can be used on both refrigerant-to-air, and refrigerant-to-liquid type heat exchangers and serve different purposes with similar goals for each.

  3. Electric cars in winter: How cold weather affects EV range ...

    www.aol.com/electric-cars-winter-cold-weather...

    A heat pump is an energy efficient way of using refrigerant to move heat from one place to another. In an EV’s case that mostly means taking warmth from the battery and using it to heat the cabin.

  4. 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]

  5. How to Fix Your Frozen Pipes, According to Experts - AOL

    www.aol.com/keep-pipes-freezing-winter-according...

    Drastically dropping the temperature in your home between the night and day can leave your pipes more prone to freezing than they would be if you leave your heat on (anywhere over 55 degrees ...

  6. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Heat pumps can extract heat from various sources, such as environmental air, exhaust air from a building, or from the ground. Heat pumps transfer heat from outside the structure into the air inside. Initially, heat pump HVAC systems were only used in moderate climates, but with improvements in low temperature operation and reduced loads due to ...

  7. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    Specifically, the heat pump transfers thermal energy using a heat pump and refrigeration cycle, cooling the cool space and warming the warm space. [1] In winter a heat pump can move heat from the cool outdoors to warm a house; the pump may also be designed to move heat from the house to the warmer outdoors in summer.

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