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  2. Block heater - Wikipedia

    en.wikipedia.org/wiki/Block_heater

    Testing in the 1970s of warm-up times for block heaters found little benefit in operating a block heater for more than four hours prior to starting a vehicle. [8] It was found that coolant temperature increased by almost 20 °C (36 °F) during the first four hours, regardless of the initial temperature.

  3. Glow plug - Wikipedia

    en.wikipedia.org/wiki/Glow_plug

    When the temperature of the air surrounding the engine comes below a certain value, depending upon cylinder head design, (40 °C for precombustion chamber injected, 20 °C for swirl chamber injected, and 0 °C for direct injected engines), the engine loses too much compression heat to reliably initiate combustion, and the engine fails to start.

  4. Winter diesel fuel - Wikipedia

    en.wikipedia.org/wiki/Winter_diesel_fuel

    winterized diesel — the No.2 diesel has been treated with additives by the diesel supplier. As the treatment with additives (1:40000 [40]) is a cheaper way to enhance No.2 fuel in winter, most stations offer winterized diesel in cold weather conditions. In regions with colder weather, most gas stations offer No.1 fuel at the same pump ...

  5. Cold start (automotive) - Wikipedia

    en.wikipedia.org/wiki/Cold_start_(automotive)

    Diesel engines make use of glow plugs to heat the combustion chamber prior to ignition, improving the conditions inside the engine, while certain manufacturers have incorporated a block heater, which heats the engine block prior to ignition to reduce the problem of cold starting. In the early 1940s diesel engines fitted in tractors were started ...

  6. Absorption refrigerator - Wikipedia

    en.wikipedia.org/wiki/Absorption_refrigerator

    Colour indicates relative temperature: blue=cold, red is hottest. The heat source (7) is contained entirely within the insulation section (6). A single-pressure absorption refrigerator takes advantage of the fact that a liquid's evaporation rate depends upon the partial pressure of the vapor above the liquid and goes up with lower partial ...

  7. How to safely use a space heater when it gets cold

    www.aol.com/lifestyle/safely-space-heater-gets...

    If the space heater's plug or cord, the wall outlet or faceplate is hot, stop using the heater. Call an electrician to check the plug or faulty wall outlet, or a repair person if the cord is hot.

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