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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.
A 'muffle' is the incineration chamber where the body is put. In order to improve the speed at which bodies burned, the muffles were internally joined, resulting in the ashes of individual bodies being mixed. This was illegal, but all subsequent multi-muffle ovens built for the concentration camps were designed in the same way.
Requires less energy than electric resistance heating and possibly more efficient than fossil fuel fired furnaces (gas/oil/coal). Air source types may not be suitable for cold climates unless used with backup (secondary) source of heat. Newer models may still provide heat when coping with temperatures below 0 °C (32 °F).
Articles on particular furnaces should be in categories for particular countries subcategories of Category:Iron and steel mills or the equivalents for other metals. Subcategories This category has the following 5 subcategories, out of 5 total.
A metallurgical furnace, often simply referred to as a furnace when the context is known, is an industrial furnace used to heat, melt, or otherwise process metals. Furnaces have been a central piece of equipment throughout the history of metallurgy ; processing metals with heat is even its own engineering specialty known as pyrometallurgy .
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An electric furnace; A central heating plant for a home or building; An electric arc furnace used for steel making and smelting of certain ores; An industrial heat treating furnace; An electrically heated kiln; An induction furnace used for preparation of special alloys; A modern muffle furnace
Furnace "A" is a type c.d. "muffle" furnace. [7] There are very few examples of this type in Europe, and archaeology scholars maintain an absolute reserve on them. [ 8 ] The structure of the "praefurnium" and part of the rectangular corridor (60 centimetres wide and 2.7 metres deep), which served to introduce firewood into the combustion ...
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