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  2. Infrared heater - Wikipedia

    en.wikipedia.org/wiki/Infrared_heater

    Infrared heaters are usually classified by the wavelength they emit: Near infrared (NIR) or short-wave infrared heaters operate at high filament temperatures above 1,800 °C (3,270 °F) and when arranged in a field reach high power densities of some hundreds of kW/m 2. Their peak wavelength is well below the absorption spectrum for water ...

  3. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Heaters are appliances whose purpose is to generate heat (i.e. warmth) for the building. This can be done via central heating. Such a system contains a boiler, furnace, or heat pump to heat water, steam, or air in a central location such as a furnace room in a home, or a mechanical room in a large building.

  4. Radiant heating and cooling - Wikipedia

    en.wikipedia.org/wiki/Radiant_heating_and_cooling

    Outdoor radiant heaters allow specific spaces within an outdoor area to be targeted, warming only the people and objects in their path. Radiant heating systems may be gas-fired or use electric infrared heating elements. An example of the overhead radiant heaters are the patio heaters often used with outdoor serving. The top metal disc reflects ...

  5. Solar thermal collector - Wikipedia

    en.wikipedia.org/wiki/Solar_thermal_collector

    The absorber can be either metallic as in the case of flat plate collectors or being a second concentric glass tube ("Sydney Tube"). Heat transfer fluid can flow in and out of each tube or being in contact with a heat pipe reaching inside the tube. For the latter, heat pipes transfer heat to the fluid in a heat exchanger called a "manifold ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. Solar water heating - Wikipedia

    en.wikipedia.org/wiki/Solar_water_heating

    The tested SWH system had about 20% of the impact of an electrical water heater and half that of a gas water heater. [ 50 ] Analysing their lower impact retrofit freeze-tolerant solar water heating system, Allen et al. (qv) reported a production CO 2 impact of 337 kg, which is around half the environmental impact reported in the Ardente et al ...

  8. 5 convicted in Amsterdam over violence against Israeli soccer ...

    www.aol.com/news/5-convicted-netherlands-over...

    A Dutch court convicted five men for their part in last month's violence against Israeli soccer fans in Amsterdam.

  9. images.huffingtonpost.com

    images.huffingtonpost.com/2013-02-20-floggingand...

    %PDF-1.5 %µµµµ 1 0 obj >>> endobj 2 0 obj > endobj 3 0 obj >/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 16 0 R 17 0 R 18 0 R] /MediaBox[ 0 0 612 792 ...

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