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  2. Circulator pump - Wikipedia

    en.wikipedia.org/wiki/Circulator_pump

    The traditional hot water recirculation system uses the existing cold water line as return line from the point of use located farthest from the hot water tank back to the hot water tank. The first of two system types has a pump mounted at the hot water heater while a "normally open" thermostatic control valve gets installed at the farthest ...

  3. Water recycling shower - Wikipedia

    en.wikipedia.org/wiki/Water_recycling_shower

    Water recycling showers (also known as recycle showers, circulation showers or re-circulation showers) are showers that use a basin and a pump to re-use the water during a shower session. The technology is used to reduce the use of drinking water and primary energy consumption for water heating .

  4. Tankless water heating - Wikipedia

    en.wikipedia.org/wiki/Tankless_water_heating

    On-demand recirculating pumps are activated by push-button or other sensor. A water contacting temperature probe installed at the hot water usage point signals the pump to stop. Single-cycle pumping events only occur when hot water is needed, thereby preventing the energy waste associated with constantly heating water within piping.

  5. Comparison of pumps - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_pumps

    Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...

  6. Water heat recycling - Wikipedia

    en.wikipedia.org/wiki/Water_heat_recycling

    Installation of a double-walled copper-on-copper heat exchanger in a vertical section of the master drain line in a Canadian home (2007) Water heat recycling (also known as drain water heat recovery, waste water heat recovery, greywater heat recovery, [citation needed] or sometimes shower water heat recovery [citation needed]) is the use of a heat exchanger to recover energy and reuse heat ...

  7. Thermostatic mixing valve - Wikipedia

    en.wikipedia.org/wiki/Thermostatic_mixing_valve

    WW-Zulauf = Warmwasser-Zulauf = Hot water input KW-Zulauf = Kaltwasser-Zulauf = Cold water input Temperaturregler =Temperature regulator Abgang = Outlet Mengeneinstellung = Volume control. A thermostatic mixing valve (TMV) is a valve that blends hot water with cold water to ensure constant, safe shower and bath outlet temperatures to prevent ...

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