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  2. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    Saddle-style window mounted heat pump 3D sketch. Window mounted heat pumps run on standard 120v AC outlets and provide heating, cooling, and humidity control. They are more efficient with lower noise levels, condensation management, and a smaller footprint than window mounted air conditioners that just do cooling. [39]

  3. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    HVAC (heating, ventilation, and air conditioning) is a major sub discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency. The discipline of HVAC includes a large number of specialized terms and acronyms, many ...

  4. Electric fireplace - Wikipedia

    en.wikipedia.org/wiki/Electric_fireplace

    An electric fireplace. An electric fireplace is an electric heater that mimics a fireplace burning coal, wood, or natural gas.Electric fireplaces are often placed in conventional fireplaces, which can then no longer be used for conventional fires. [1]

  5. Electric arc furnace - Wikipedia

    en.wikipedia.org/wiki/Electric_arc_furnace

    Industrial arc furnaces range in size from small units of approximately one-tonne capacity (used in foundries for producing cast iron products) up to about 400-tonne units used for secondary steelmaking. Arc furnaces used in research laboratories and by dentists may have a capacity of only a few dozen grams. Industrial electric arc furnace ...

  6. IEC 62056 - Wikipedia

    en.wikipedia.org/wiki/IEC_62056

    Most metering units have special modes for calibration and resetting meter registers. These modes are usually protected by anti-tampering features such as switches that sense if the meter enclosure has been opened. The HHU may also be given limited rights to set or reset certain parameters in the meter. The handheld unit then sends a sign-off ...

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