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  2. Rheem Manufacturing Company - Wikipedia

    en.wikipedia.org/wiki/Rheem_Manufacturing_Company

    Rheem was the first residential HVAC company to begin using scroll compressors throughout their lineup in 1994, and air conditioners and heat pumps continue to use Copeland Scroll Compressors. [20] The company was also first to introduce a 14 SEER remote condensing unit in 1997.

  3. Chromalox, Inc. - Wikipedia

    en.wikipedia.org/wiki/Chromalox,_Inc.

    Chromalox, Inc. manufactures and supplies electric heat and control products for industrial heating applications in the U.S. and internationally. [1] Based in Pittsburgh, Pennsylvania, the company has manufacturing facilities in Ogden, Utah; La Vergne, Tennessee; Nuevo Laredo, Mexico; and Soissons, France.

  4. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality .

  5. Duct (flow) - Wikipedia

    en.wikipedia.org/wiki/Duct_(flow)

    Ducts for air pollution control in a 17000 standard cubic feet per minute regenerative thermal oxidizer (RTO). A round galvanized steel duct connecting to a typical diffuser Fire-resistance rated mechanical shaft with HVAC sheet metal ducting and copper piping, as well as "HOW" (Head-Of-Wall) joint between top of concrete block wall and underside of concrete slab, firestopped with ceramic ...

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  7. Plumbing - Wikipedia

    en.wikipedia.org/wiki/Plumbing

    Heating and cooling (HVAC), waste removal, and potable water delivery are among the most common uses for plumbing, but it is not limited to these applications. [2] The word derives from the Latin for lead , plumbum , as the first effective pipes used in the Roman era were lead pipes .

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