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  2. Thermosiphon - Wikipedia

    en.wikipedia.org/wiki/Thermosiphon

    The heat from the collector can be transferred to water in two ways: directly where water circulates through the collector, or indirectly where an anti-freeze solution carries the heat from the collector and transfers it to water in the tank via a heat exchanger. Convection allows for the movement of the heated liquid out of the solar collector ...

  3. Moving-bed heat exchanger - Wikipedia

    en.wikipedia.org/wiki/Moving-bed_heat_exchanger

    Media moves along heat transfer surfaces which can be tubes, plates or panels. MBHEs offer the advantages of little external equipment, a compact design, low maintenance cost and low construction costs. [2] The Moving Bed Heat Exchanger can consist of several heat exchanger modules arranged one above the other.

  4. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    In comparison, a typical 230 L (60 US gal) tank electric water heater has a 4.5 kW (15,000 BTU/h) heating element, which at 100% efficient results in a heating time of about 2.34 hours. At $0.16/kWh the electricity would cost $1.68.

  5. 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 ...

  6. Condensing boiler - Wikipedia

    en.wikipedia.org/wiki/Condensing_boiler

    Condensing boilers are water heaters typically used for heating systems that are fueled by gas or oil. When operated in the correct circumstances, a heating system can achieve high efficiency (greater than 90% on the higher heating value) by condensing water vapour found in the exhaust gases in a heat exchanger to preheat the circulating water.

  7. Copper in heat exchangers - Wikipedia

    en.wikipedia.org/wiki/Copper_in_heat_exchangers

    Various types of solar collectors for residential applications are available with either direct circulation (i.e., heats water and brings it directly to the home for use) or indirect circulation (i.e., pumps a heat transfer fluid through a heat exchanger, which then heats water that flows into the home) systems. [32]

  8. Heat exchanger - Wikipedia

    en.wikipedia.org/wiki/Heat_exchanger

    Tubular heat exchanger Partial view into inlet plenum of shell and tube heat exchanger of a refrigerant based chiller for providing air-conditioning to a building. A heat exchanger is a system used to transfer heat between a source and a working fluid. Heat exchangers are used in both cooling and heating processes. [1]

  9. Rheem Manufacturing Company - Wikipedia

    en.wikipedia.org/wiki/Rheem_Manufacturing_Company

    In 2009, Rheem and Ruud were the first to sell a Hybrid Heat Pump Water Heater, which was more than twice as efficient as similar electric water heaters. [25] Also in the same year, Rheem and Ruud central air conditioners were reported to have the fewest percentage of units requiring repair among all major HVAC brands according to Consumer Reports.

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