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  2. Homeowners were having issues with hot water tank before ...

    www.aol.com/news/homeowners-were-having-issues...

    The owners of a home that exploded in western Pennsylvania last weekend were having issues with their hot water tank, authorities said, but the cause of the blast that killed five people ...

  3. Pilot light - Wikipedia

    en.wikipedia.org/wiki/Pilot_light

    In natural gas furnaces, water heaters, and room heating systems, a safety cut-off switch is normally included so that the gas supply to the pilot and heating system is shut off by an electrically operated valve if the pilot light goes out. This cut-off switch usually detects the pilot light in one of several ways: A flame rectification device. [2]

  4. 2015 incidents of lead in drinking water in Hong Kong

    en.wikipedia.org/wiki/2015_incidents_of_lead_in...

    Due to the historic usage of lead water pipes, many jurisdictions have legal limits on safety levels of lead content in drinking water. Hong Kong standards limit the acceptable lead content of drinking water to 10 micrograms of lead per litre, the same standard as Europe, Australia, Taiwan, Japan and Singapore.

  5. Hot water tank eyed as potential cause of Plum house ... - AOL

    www.aol.com/hot-water-tank-eyed-potential...

    The house that exploded in Pennsylvania on Saturday, killing five people, was having hot water tank issues, the Allegheny County Fire Marshal’s Office confirmed, but the cause of the blast ...

  6. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    Appliances that provide a continual supply of hot water are called water heaters, hot water heaters, hot water tanks, boilers, heat exchangers, geysers (Southern Africa and the Arab world), or calorifiers. These names depend on region, and whether they heat potable or non-potable water, are in domestic or industrial use, and their energy source.

  7. District heating - Wikipedia

    en.wikipedia.org/wiki/District_heating

    The Spittelau incineration plant is one of several plants that provide district heating in Vienna, Austria. Animated image showing how district heating works. District heating (also known as heat networks) is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heating and water ...

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