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2. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   An 80 US gal (300 L; 67 imp gal) electric storage tank water heater was able to have a minimum energy factor of 86% under the pre-2015 standard, while under the 2015 standard, the minimum energy factor for an 80-gallon electric storage tank water heater is now 197%, which is only possible with heat pump technology. This rating measures ...

3. A. O. Smith - Wikipedia

   en.wikipedia.org/wiki/A._O._Smith

   A. O. Smith Water Products Company is headquartered in Milwaukee, Wisconsin. The Ashland City, Tennessee location is home of the world's largest water heater factory. [7] A. O. Smith Corporation manufactures the following types of water heaters for residential uses: gas and propane, hybrid, electric, tankless, and solar.

4. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   Tankless gas electronic ignition water heaters. Gas water heaters have an exhaust vent or one to two exhaust pipes on the top, and still require electric power for electronics, sensing and ignition. A three-phase, 21 kW, 400-volt tankless water heater in Europe, with new European color coding for three-phase power.

5. Radiator (heating) - Wikipedia

   en.wikipedia.org/wiki/Radiator_(heating)

   Hot-water baseboard-style radiator (top) which is covered (left) and opened (right), with inside view (bottom) showing the aluminium fins which are attached in series to the copper pipe A hot-water radiator consists of a sealed hollow metal container filled with hot water from a boiler or other heating device by gravity feed, a pump, or natural ...

6. Pipeline - Wikipedia

   en.wikipedia.org/wiki/Pipeline

   The United States had 65%, Russia had 8%, and Canada had 3%, thus 76% of all pipeline were in these three countries. [1] The main attribute to pollution from pipelines is caused by corrosion and leakage. [2] Pipeline and Gas Journal ' s worldwide survey figures indicate that 118,623 miles (190,905 km) of pipelines are planned and under ...

7. AOL.com - News, Sports, Weather, Entertainment, Local & Lifestyle

   www.aol.com

   AOL latest headlines, entertainment, sports, articles for business, health and world news.