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  2. 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 ...

  3. Hydrocarbon dew point - Wikipedia

    en.wikipedia.org/wiki/Hydrocarbon_dew_point

    In the United States, the hydrocarbon dew point of processed, pipelined natural gas is related to and characterized by the term GPM which is the gallons of liquefiable hydrocarbons contained in 1,000 cubic feet (28 m 3) of natural gas at a stated temperature and pressure.

  4. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    Under the pre-2015 standard, a 75 US gal (280 L; 62 imp gal) gas storage water heater with a nominal input of 22 kW (75,000 BTU/h) or less was able to have an energy factor as low as 53%, while under the 2015 standard, the minimum energy factor for a 75-US-gallon gas storage tank water heater is now 74%, which can only be achieved by using ...

  5. Reliance Home Comfort - Wikipedia

    en.wikipedia.org/wiki/Reliance_Home_Comfort

    Due to regulatory changes, Union Gas' unregulated water heater business was split off in 1999 as a sister company named Union Energy. [ 8 ] [ 9 ] Union Energy was then acquired in 2001 by Epcor for about $160 million, [ 9 ] later also acquiring Hydro One 's retail rental division Ontario Hydro Energy. [ 10 ]

  6. Simona Halep withdraws from Australian Open qualifying ...

    www.aol.com/simona-halep-withdraws-australian...

    The 33-year-old Romanian said she is planning to next enter the Transylvania Open in her home country, where play begins Feb. 3. Last week, Halep was granted a wild-card entry for qualifying in ...

  7. Hazen–Williams equation - Wikipedia

    en.wikipedia.org/wiki/Hazen–Williams_equation

    S foot of water per foot of pipe; P d = pressure drop over the length of pipe in psig (pounds per square inch gauge pressure) L = length of pipe in feet; Q = flow, gpm (gallons per minute) C = pipe roughness coefficient; d = inside pipe diameter, in (inches) Note: Caution with U S Customary Units is advised. The equation for head loss in pipes ...

  8. Massachusetts ‘idiot’ gets stuck in chimney while trying to ...

    www.aol.com/news/naughty-list-massachusetts...

    A Massachusetts man was caught in the middle of some “Santa-antics” and got stuck in a chimney while trying to evade police executing a search warrant on his home.

  9. Dog expert reveals what they look for in a hotel when ... - AOL

    www.aol.com/dog-expert-reveals-look-hotel...

    Follow these tips to ensure that your pup’s stay is as pleasant as yours!