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  2. Grundig - Wikipedia

    en.wikipedia.org/wiki/Grundig

    In 2004 the UK's Alba plc and the Turkish Koç's Beko jointly took over Grundig Home InterMedia System, Grundig's consumer electronics division. In 2007 Alba sold its half of the business to Koç for US$50.3 million, [ 15 ] although it retained the license to use the Grundig brand in the UK until 2010, and in Australasia until 2012.

  3. Circulator pump - Wikipedia

    en.wikipedia.org/wiki/Circulator_pump

    By installing a thermostatically controlled pump just after the farthest fixture on the loop, cyclic pumping maintains ready hot water up to the last fixture on the loop instead of wasting energy heating the piping from the last fixture to the water heater. Installing a circulation pump at the farthest fixture on a hot water circulation loop is ...

  4. Talk:Ground source heat pump - Wikipedia

    en.wikipedia.org/wiki/Talk:Ground_source_heat_pump

    I'm a bit confused about the third paragraph, which reads: "This article focuses on geothermal heat pumps that use water to exchange heat with the ground, often referred to as "water-source geothermal heat pumps" or "water loop geothermal heat pumps.".... I thought water-source heat pumps use heat from a water source, such as lakes, ponds or ...

  5. Absorption heat pump - Wikipedia

    en.wikipedia.org/wiki/Absorption_heat_pump

    The absorption heat pump can be used as a cooler during summer while, during winter, it can be used on heat pump or heat transformer mode according to the available heat source. [6] The performance of the absorption heat pump is indicated by the coefficient of performance (COP). The COP is the ratio of the removed (for refrigeration) or ...

  6. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    In general, heat pumps work most efficiently (that is, the heat output produced for a given energy input) when the difference between the heat source and the heat sink is small. When using a heat pump for space or water heating, therefore, the heat pump will be most efficient in mild conditions, and decline in efficiency on very cold days.

  7. Ground source heat pump - Wikipedia

    en.wikipedia.org/wiki/Ground_source_heat_pump

    A heat pump in combination with heat and cold storage. A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons.

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