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  2. Williams Companies - Wikipedia

    en.wikipedia.org/wiki/Williams_Companies

    In 1966, Williams bought the then-largest petroleum products pipeline in America, known as the Great Lakes Pipe Line Company, for about $287 million. In 1982, it expanded into natural gas transportation with the purchase of Northwest Energy Company, and extended their reach to the East Coast with the 1995 purchase of Transco Energy Company.

  3. Gas heater - Wikipedia

    en.wikipedia.org/wiki/Gas_heater

    Upright non-flued liquefied petroleum gas heater, 1970s A wall mounted gas heater that runs on either propane or natural gas. A gas heater is a space heater used to heat a room or outdoor area by burning natural gas, liquefied petroleum gas, propane, or butane. Indoor household gas heaters can be broadly categorized in one of two ways: flued or ...

  4. Direct vent fireplace - Wikipedia

    en.wikipedia.org/wiki/Direct_vent_fireplace

    A direct vent fireplace is a prefabricated metal fireplace that employs a direct-vent combustion system. "Direct vent" refers to a sealed-combustion system in which air for combustion is drawn from the outdoors, and waste combustion gasses are exhausted to the outdoors. "Direct vent" does not simply mean that all gasses from combustion are ...

  5. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    Electric heating or resistance heating converts electricity directly to heat. Electric heat is often more expensive than heat produced by combustion appliances like natural gas, propane, and oil. Electric resistance heat can be provided by baseboard heaters, space heaters, radiant heaters, furnaces, wall heaters, or thermal storage systems.

  6. Furnace (central heating) - Wikipedia

    en.wikipedia.org/wiki/Furnace_(central_heating)

    The fourth category of furnace is the high-efficiency condensing gas furnace. High efficiency condensing gas furnaces typically achieve between 90% and 98% AFUE. [3] A condensing gas furnace includes a sealed combustion area, combustion draft inducer and a secondary heat exchanger. The primary gain in efficiency for a condensing gas furnace, as ...

  7. Catalytic heater - Wikipedia

    en.wikipedia.org/wiki/Catalytic_heater

    The catalytic heater is contained within the package which is usually made out of stainless steel. Instrument gas and pilot preheating regulators are only used for freeze protection, and to heat up the gas before it reaches the pilot. It can also be used to heat a stream of gas that is used for measurement or instrumentation. Space heating is a ...

  8. Half a Million Electric Space Heaters Recalled Due to ... - AOL

    www.aol.com/finance/half-million-electric-space...

    2. Which Models Are Being Recalled? Quite a few. Model numbers H7130 (including the H7130101 variation), H7131, H7132, H7133, H7134, and H7135 are the ones that have been recalled.

  9. List of United States natural gas companies - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    Piedmont Natural Gas; XOOM Energy; Public Service of North Carolina (PSNC) Frontier Natural Gas, North Dakota. Xcel Energy; MDU Resources; Ohio. Direct Energy; East Ohio Gas; Duke Energy; Nisource; Columbia Gas of Ohio; Dominion Energy; Northeast Ohio Natural Gas; Orwell Natural Gas; Oklahoma. Expand Energy; Oklahoma Gas & Electric; Oklahoma ...

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