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  2. National Board of Boiler and Pressure Vessel Inspectors

    en.wikipedia.org/wiki/National_Board_of_Boiler...

    Pressure-retaining items can be registered with the National Board, requiring certain uniform quality standards be achieved certifying the manufacturing, testing, and inspection process. To obtain a certification the registered items have to be inspected by National Board-commissioned inspectors and built to required standards.

  3. IGS Energy - Wikipedia

    en.wikipedia.org/wiki/IGS_Energy

    IGS Energy, also known as Interstate Gas Supply, Inc., is an independent retail natural gas and electric supplier based in Dublin, Ohio, United States.It serves more than 1,000,000 residential, commercial and industrial customers in the states of Ohio, Michigan, Kentucky, New York, Pennsylvania, Indiana, Virginia, Maryland, Texas, California, Illinois and Massachusetts.

  4. NiSource - Wikipedia

    en.wikipedia.org/wiki/NiSource

    NiSource Inc. is one of the largest fully regulated utility companies in the United States, serving approximately 3.5 million natural gas customers and 500,000 electric customers across six states through its local Columbia Gas and NIPSCO brands. The company, based in Merrillville, Indiana, has more than 8,000 employees. As of 2018, NiSource is ...

  5. Chimney sweep - Wikipedia

    en.wikipedia.org/wiki/Chimney_sweep

    A chimney sweep in Wexford, Ireland in 1850.. A chimney sweep is a person who inspects then clears soot and creosote from chimneys.The chimney uses the pressure difference caused by a hot column of gas to create a draught and draw air over the hot coals or wood enabling continued combustion.

  6. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    65–97% for gas-fired heating; 80–89% for oil-fired and; 45–60% for coal-fired heating. [26] Oil storage tanks, especially underground storage tanks, can also impact the environment. Even if a building's heating system was converted from oil long ago, oil may still be impacting the environment by contaminating soil and groundwater.

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  8. Fire safety - Wikipedia

    en.wikipedia.org/wiki/Fire_safety

    Fire safety equipment at a construction site in China Property loss caused by arson. Fire safety is the set of practices intended to reduce destruction caused by fire.Fire safety measures include those that are intended to prevent the ignition of an uncontrolled fire and those that are used to limit the spread and impact of a fire.

  9. Belmont Glass Company - Wikipedia

    en.wikipedia.org/wiki/Belmont_Glass_Company

    Columbus, OH: Ohio Department of Inspection of Workshops and Factories. OCLC 13049618. Paquette, Jack K. (2002). Blowpipes, Northwest Ohio Glassmaking in the Gas Boom of the 1880s. Xlibris Corp. p. 559. ISBN 1-4010-4790-4. OCLC 50932436. Revi, Albert Christian (1964). American Pressed Glass and Figure Bottles. New York: Nelson. OCLC 965803.

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