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  2. Heating seasonal performance factor - Wikipedia

    en.wikipedia.org/wiki/Heating_seasonal...

    A system which transfers 2.25 times as much heat as the electricity consumed is said to have an SPF of 2.25. A well designed ground source heat pump installation should achieve an SPF of 3.5, or over 5 if linked to a solar-assisted thermal bank. [6]

  3. House Energy Rating - Wikipedia

    en.wikipedia.org/wiki/House_energy_rating

    Required Items: refers to minimum performance requirements for building envelope and Heating Ventilation and Air-Conditioning (HVAC). Optional Items: refers to the additional energy management system which are not mandatory in the rating scheme. it covers, the application of renewable energy, innovative energy efficient technologies.

  4. Home Energy Rating - Wikipedia

    en.wikipedia.org/wiki/Home_Energy_Rating

    The Home Energy Rating is an American estimated measurement of a home's energy efficiency based on normalized modified end-use loads (nMEULs). [1] In the United States, the Residential Energy Services Network (RESNET) is responsible for creation and maintenance of the RESNET Mortgage Industry National Home Energy Rating Standards (MINHERS), a proprietary system of standards, [2] which includes ...

  5. Glossary of geothermal heating and cooling - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_geothermal...

    The methodology of calculating the SPF makes it possible to compare the heat pump system with common heating systems like oil or gas. By this comparison it is also possible to calculate the CO2- and primary energy reduction potential from different heat pump systems compared to other heating systems.

  6. Homes For Good offers winter weather support through ... - AOL

    www.aol.com/homes-good-offers-winter-weather...

    Lane County's housing authority, Homes For Good, located at 100 W. 13th Ave. in Eugene, supports affordable housing and health and wellness through programs such as the weatherization and heat ...

  7. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    The system normally has eight main components: a compressor, a reservoir, a reversing valve which selects between heating and cooling mode, two thermal expansion valves (one used when in heating mode and the other when used in cooling mode) and two heat exchangers, one associated with the external heat source/sink and the other with the ...

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