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  2. Steam locomotive components - Wikipedia

    en.wikipedia.org/wiki/Steam_locomotive_components

    The diagram, which is not to scale, is a composite of various designs in the late steam era. Some components shown are not the same as, or are not present, on some locomotives – for example, on smaller or articulated types. Conversely, some locomotives have components not listed here.

  3. Truma (company) - Wikipedia

    en.wikipedia.org/wiki/Truma_(company)

    Truma Gerätetechnik GmbH & Co. KG is a German manufacturer of leisure products for caravans and motorhomes. The company develops, manufactures and sells heating and air conditioning systems, hot water boilers, maneuvering systems and products for energy and gas supply.

  4. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    This limit controller may shut the furnace off if the blower fails or if something is blocking the air flow. The heated air is then sent back through the home through supply ducts. In larger commercial applications, central heating is provided through an air handler which incorporates similar components as a furnace but on a larger scale.

  5. Three-drum boiler - Wikipedia

    en.wikipedia.org/wiki/Three-drum_boiler

    The Thornycroft boiler is a variant that splits the usual central furnace into two. There are four drums: two main drums vertically in the centre – a steam and a water drum – also two wing drums at the outside edges of the furnace. The design was notable for its early use of the water-wall furnace. The outer bank of tubes was shallow ...

  6. Scotch marine boiler - Wikipedia

    en.wikipedia.org/wiki/Scotch_marine_boiler

    Sectional diagram of a "wet back" boiler. The general layout is that of a squat horizontal cylinder. One or more large cylindrical furnaces are in the lower part of the boiler shell. Above this are many small-diameter fire-tubes. Gases and smoke from the furnace pass to the back of the boiler, then return through the small tubes and up and out ...

  7. Muffle furnace - Wikipedia

    en.wikipedia.org/wiki/Muffle_furnace

    An Automatic Oil Muffle Furnace, circa 1910. Petroleum is contained in tank A, and is kept under pressure by pumping at intervals with the wooden handle, so that when the valve B is opened, the oil is vaporized by passing through a heating coil at the furnace entrance, and when ignited burns fiercely as a gas flame.

  8. Elkridge Furnace Complex - Wikipedia

    en.wikipedia.org/wiki/Elkridge_Furnace_Complex

    It comprises the six remaining buildings of an iron furnace that operated from the 18th century into the 1860s. Included are a large 2 + 1 ⁄ 2-story Federal/Greek Revival house constructed about 1835 as the residence of the furnace owner; a frame dwelling of about the same date which probably accommodated a manager or clerk; a 2 + 1 ⁄ 2-story company store and hotel or dormitory for ...

  9. Therm - Wikipedia

    en.wikipedia.org/wiki/Therm

    The therm (symbol, thm) is a non-SI unit of heat energy equal to 100,000 British thermal units (BTU), [1] and approximately 105 megajoules, 29.3 kilowatt-hours, 25,200 kilocalories and 25.2 thermies. One therm is the energy content of approximately 100 cubic feet (2.83 cubic metres) of natural gas at standard temperature and pressure .

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