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  2. National Fenestration Rating Council - Wikipedia

    en.wikipedia.org/wiki/National_Fenestration...

    Consumers who purchase Energy Star rated windows and doors may be eligible for a tax credit. [6] Energy Star sets maximum u-factors and minimum or maximum Solar Heat Gain Coefficients for products depending on the type of product and the climate zone where it is installed. [7] Version 7.0 of Energy Star will take effect on October 23, 2023.

  3. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    Pumps with ratings of 18 SEER or above are considered highly efficient. The highest efficiency heat pumps manufactured are up to 24 SEER. [37] Heating seasonal performance factor (in the US) or Seasonal Performance Factor (in Europe) are ratings of heating performance. The SPF is Total heat output per annum / Total electricity consumed per ...

  4. Seasonal energy efficiency ratio - Wikipedia

    en.wikipedia.org/wiki/Seasonal_energy_efficiency...

    In the United States, the efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER) which is defined by the Air Conditioning, Heating, and Refrigeration Institute, a trade association, in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [1]

  5. In New York City, heat pumps that fit in apartment windows ...

    www.aol.com/news/york-city-heat-pumps-fit...

    For 27 years, the heat in Regina Fred’s Queens apartment building came from a noisy steam radiator that she couldn't control and sometimes didn't come on at all, leaving her shivering.

  6. Energy Star - Wikipedia

    en.wikipedia.org/wiki/Energy_Star

    Energy Star qualified heat pumps, boilers, air conditioning systems, and furnaces are available. In addition, cooling and heating bills can be significantly lowered with air sealing and duct sealing. Air sealing reduces the outdoor air that penetrates a building, and duct sealing prevents attic or basement air from entering ducts and lessening ...

  7. Air source heat pump - Wikipedia

    en.wikipedia.org/wiki/Air_source_heat_pump

    An air source heat pump (ASHP) is a heat pump that can absorb heat from air outside a building and release it inside; it uses the same vapor-compression refrigeration process and much the same equipment as an air conditioner, but in the opposite direction. ASHPs are the most common type of heat pump and, usually being smaller, tend to be used ...

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