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  2. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    For older houses where the water heater is part of the space heating boiler, and plumbing codes allow, some plumbers install an automatic gas shutoff (such as the "Watts 210") in addition to a TPR valve. When the device senses that the temperature reaches 99 °C (210 °F), it shuts off the gas supply and prevents further heating.

  3. Vertical boiler with horizontal fire-tubes - Wikipedia

    en.wikipedia.org/wiki/Vertical_boiler_with...

    A typical Cochran boiler, as illustrated, [5] might be 15 feet (4.57 m) high and 7 feet (2.13 m) in diameter, giving a heating surface of 500 square feet (46.45 m 2), and a grate area of 24 square feet (2.23 m 2). Working pressure is between 100 and 125 psi (6.9 and 8.6 bar; 690 and 860 kPa).

  4. Forced circulation boiler - Wikipedia

    en.wikipedia.org/wiki/Forced_circulation_boiler

    The forced circulation boiler begins the same as a natural circulation boiler, at the feed water pump. Water is introduced into the steam drum and is circulated around the boiler, leaving only as steam. What makes the forced circulation boiler different is its use of a secondary pump that circulates water through the boiler.

  5. Natural circulation boiler - Wikipedia

    en.wikipedia.org/wiki/Natural_circulation_boiler

    Natural Circulation Boiler in construction. In a natural circulation boiler the circulation is achieved by the difference in density when the water in the boiler is heated. In natural circulation steam boilers the circulation of water is by convection currents, which are set up during the heating of water.

  6. Netanyahu's prostate removal surgery was a success, hospital says

    www.aol.com/israels-netanyahu-undergo-prostate...

    Israeli Prime Minister Benjamin Netanyahu successfully underwent surgery to have his prostate removed, hospital officials said Sunday.. The 75-year-old leader, who has had a series of health ...

  7. Dana G. Mead - Pay Pals - The Huffington Post

    data.huffingtonpost.com/paypals/dana-g-mead

    From January 2008 to April 2010, if you bought shares in companies when Dana G. Mead joined the board, and sold them when he left, you would have a -27.6 percent return on your investment, compared to a -17.7 percent return from the S&P 500.

  8. List of boiler types by manufacturer - Wikipedia

    en.wikipedia.org/wiki/List_of_boiler_types_by...

    [6] [7] Benson boiler: a monotube "once-through" steam generator. [8] Blake boiler; Blechynden boiler: An early naval water-tube boiler. [6] [9] Bolsover Express boiler [10] box boiler: An early marine boiler with flat sides. Owing to the flat sides, even with extensive rod stays, the boilers were only suitable for low pressures.

  9. Demonic dad allegedly beheads 1-year-old son with knife after ...

    www.aol.com/demonic-dad-allegedly-beheads-1...

    A demonic California dad has been arrested for allegedly beheading his 1-year-old son Friday in an early-morning frenzy of violence that also injured his wife and her mother, according to police.

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