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  2. Rheem Manufacturing Company - Wikipedia

    www .rheem .com. Rheem Manufacturing Company is an American privately held manufacturer that produces residential and commercial water heaters and boilers, as well as heating, ventilating and air conditioning (HVAC) equipment. The company also produces and sells products under the Ruud brand name.

  3. Water heating - Wikipedia

    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 ...

  4. Heating, ventilation, and air conditioning - Wikipedia,_ventilation,_and...

    For example, a conventional heat pump system used to heat a building in Montana's −57 °C (−70 °F) low temperature or cool a building in the highest temperature ever recorded in the US—57 °C (134 °F) in Death Valley, California, in 1913 would require a large amount of energy due to the extreme difference between inside and outside air ...

  5. Renewable Identification Number - Wikipedia

    A Renewable Identification Number (or RIN) is a serial number assigned to a batch of biofuel for the purpose of tracking its production, use, and trading as required by the United States Environmental Protection Agency's Renewable Fuel Standard (RFS) implemented according to the Energy Policy Act of 2005 and the Energy Independence and Security Act of 2007.

  6. Electric arc furnace - Wikipedia

    An electric arc furnace ( EAF) is a furnace that heats material by means of an electric arc . Industrial arc furnaces range in size from small units of approximately one-tonne capacity (used in foundries for producing cast iron products) up to about 400-tonne units used for secondary steelmaking. Arc furnaces used in research laboratories and ...

  7. Furnace (central heating) - Wikipedia

    A furnace ( American English ), referred to as a heater or boiler in British English, is an appliance used to generate heat for all or part of a building. Furnaces are mostly used as a major component of a central heating system. Furnaces are permanently installed to provide heat to an interior space through intermediary fluid movement, which ...

  8. William Rheem - Wikipedia

    Santa Cruz, California. Occupation. Businessman. Employer. Standard Oil. William S. Rheem (1862 – April 19, 1919), [1] a.k.a. W.S. Rheem, [1] was an important civic figure in the politics of early Richmond, California, in addition to being president of the Standard Oil Company of California (today's Chevron Corporation) from 1917 until his death.

  9. Industrial furnace - Wikipedia

    An industrial chamber furnace, used to heat steel billets for open-die forging. An industrial furnace, also known as a direct heater or a direct fired heater, is a device used to provide heat for an industrial process, typically higher than 400 degrees Celsius. [1] They are used to provide heat for a process or can serve as reactor which ...

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