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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. 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 ...

  4. Acheson process - Wikipedia

    To finish the items, the process is run for approximately 20 hours at 200 V with a starting current of 300 A (60 kW) for a furnace approximately 9 meters long by 35 cm in width and 45 cm in depth, and the resistance drops as the carbon heats due to a negative temperature coefficient, causing the current to increase. Cool down takes weeks.

  5. Rheem - Wikipedia

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  6. Blast furnace - Wikipedia

    Former AHM blast furnace in Port of Sagunt, Valencia, Spain. A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead or copper. Blast refers to the combustion air being supplied above atmospheric pressure. [1]

  7. Vacuum furnace - Wikipedia

    A vacuum furnace is a type of furnace in which the product in the furnace is surrounded by a vacuum during processing. The absence of air or other gases prevents oxidation, heat loss from the product through convection, and removes a source of contamination. This enables the furnace to heat materials (typically metals and ceramics) to ...

  8. AJAX furnace - Wikipedia

    The AJAX process invented in 1957, and named after its originator, Albert Jackson. The process involved modifying an open hearth furnace to use oxygen instead of air. [1] The use of oxygen in the open hearth negated the need for an external fuel source, as with Linz-Donawitz converters. [2]

  9. 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. [clarification needed] Furnaces are permanently installed to provide heat to an interior space through intermediary ...

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    yahoo error code 45 on a rheem furnace model 36c84 diagram video youtube