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  2. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    An 80 US gal (300 L; 67 imp gal) electric storage tank water heater was able to have a minimum energy factor of 86% under the pre-2015 standard, while under the 2015 standard, the minimum energy factor for an 80-gallon electric storage tank water heater is now 197%, which is only possible with heat pump technology. This rating measures ...

  3. Energy factor - Wikipedia

    en.wikipedia.org/wiki/Energy_factor

    The energy factor metric only applies to residential water heaters, which are currently defined by fuel, type, and input capacity. [5] Generally, the EF number represents the thermal efficiency of the water heater as a percentage, since it is an average of the ratio of the theoretical heat required to raise the temperature of water drawn to the amount of energy actually consumed by the water ...

  4. Franklin Electric - Wikipedia

    en.wikipedia.org/wiki/Franklin_Electric

    Franklin Electric Co., Inc. is a manufacturer and distributor of products and systems focused on the movement and management of water and energy. The company offers pumps, motors, drives, and controls for use in a variety of residential, commercial, agricultural, industrial, and municipal applications.

  5. Mercedes-Benz M176/M177/M178 engine - Wikipedia

    en.wikipedia.org/wiki/Mercedes-Benz_M176/M177/M...

    Coolant delivery 3 phase thermostat, timing chain driven water pump rated 420 litres (110 US gal; 92 imp gal) /min flow Oil delivery 9 litres (2.4 US gal; 2.0 imp gal) oil, dry-sump, via two-stage controlled suction pump (250 litres (66 US gal; 55 imp gal) /min), a pressure pump and a 12 litres (3.2 US gal; 2.6 imp gal) external oil tank

  6. Water pumping - Wikipedia

    en.wikipedia.org/wiki/Water_pumping

    A spiral pump, sometimes called a Wirz pump or incorrectly Wirtz pump, is a low lift pump which is composed of a long piece of metal plating, which is wound into a coil and sealed at the top and back extremities so as to resemble a cylinder. The outer cavity serves as the inlet, while the inner (partial) tube serves as the outlet.

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