| muffle furnace | An electric furnace heated by direct transfer of heat from a resistant muffle, a dental furnace heated by a muffle. (05 Mar 2000) |
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| muffle | 1. Anything with which another thing, as an oar or drum, is muffled; also, a boxing glove; a muff. 2. <chemistry> An earthenware compartment or oven, often shaped like a half cylinder, used in furnaces to protect objects heated from the direct action of the fire, as in scorification of ores, cupellation of ore buttons, etc. 3. A small oven for baking and fixing the colours of painted or printed pottery, without exposing the pottery to the flames of the furnace or kiln. 4. A pulley block containing several sheaves. Origin: F. Moufle, prop, a mitten, from the resemblance in shape. See Muffle, Muff. Source: Websters Dictionary (01 Mar 1998) |
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| pernot furnace | A reverberatory furnace with a circular revolving hearth, used in making steel. Origin: So called from Charles Pernot, its inventor. Source: Websters Dictionary (01 Mar 1998) |
| spreader stoker furnace | A furnace in which fuel is automatically or mechanically spread. Part of the fuel is burned in suspension. Large pieces fall on a grate. (05 Dec 1998) |
| dental furnace | <dentistry> A furnace used to eliminate the wax pattern from the investment mold prior to casting in metal, a furnace used to fuse and glaze dental porcelains. (05 Mar 2000) |
| dutch oven furnace | One of the earliest types of furnaces, having a large, rectangular box lined with firebrick (refractory) on the sides and top. Commonly used for burning wood. Heat is stored in the refractory and radiated to a conical fuel pile in the centre of the furnace. (05 Dec 1998) |
| fuel-cell furnace | A variation of the Dutch oven design, that usually incorporates a primary and secondary combustion chamber (cell). The primary chamber is a vertical refractory-lined cylinder with a grate at the bottom in which combustion is partially completed. Combustion is completed in the secondary chamber. (05 Dec 1998) |
| furnace | An enclosed chamber or container used to burn biomass in a controlled manner to produce heat for space or process heating. (05 Dec 1998) |