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  2. 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 ...

  3. 12 Hacks to Keep Warm Outside All Winter Long - AOL

    www.aol.com/lifestyle/12-hacks-keep-warm-outside...

    Sip on something hot. Because our bodies are 50 to 70 percent water, drinking hot liquids may increase body temperature by a few degrees for a short time.However, the effects are minimal and ...

  4. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    Air source heat pumps are the most common models, while other types include ground source heat pumps, water source heat pumps and exhaust air heat pumps. [3] Large-scale heat pumps are also used in district heating systems. [4] The efficiency of a heat pump is expressed as a coefficient of performance (COP), or seasonal coefficient of ...

  5. Micro-environments and radiator hacks: Tips for staying warm ...

    www.aol.com/micro-environments-radiator-hacks...

    With another cold spell on its way for metro Detroit and rolling outages across the state, know the tips necessary for keeping warm inside your home. Micro-environments and radiator hacks: Tips ...

  6. Water recycling shower - Wikipedia

    en.wikipedia.org/wiki/Water_recycling_shower

    The first recycling shower, operated by a hand pump, was patented in England in 1767 by the stove maker William Feetham. [1] This recycling shower used the pump to push the water into a basin above the user's head. To receive the water, the user pulled a chain to release the water from the basin.

  7. Dedicated outdoor air system - Wikipedia

    en.wikipedia.org/wiki/Dedicated_outdoor_air_system

    DOAS air handling unit with heat recovery wheel and passive dehumidification. A dedicated outdoor air system (DOAS) is a type of heating, ventilation and air-conditioning system that consists of two parallel systems: a dedicated system for delivering outdoor air ventilation that handles both the latent and sensible loads of conditioning the ventilation air, and a parallel system to handle the ...