A solar heating system that preheats water or air that is then heated more by another heating appliance.

Energy terms . 2014.

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Look at other dictionaries:

  • preheater — noun see preheat …   New Collegiate Dictionary

  • preheater — See preheat. * * * …   Universalium

  • preheater — noun An engineering device that preheats a material prior to some other process …   Wiktionary

  • preheater — prɪː hɪːtÉ™(r) n. device for preheating; person who preheats something before using it …   English contemporary dictionary

  • preheater — pre·heater …   English syllables

  • preheater — “+ noun Etymology: preheat + er : any of various devices for preliminary heating: as a. : a heat exchanger used in brewing and distilling b. : any of various devices for using waste heat for preliminary heating in petroleum refining processes …   Useful english dictionary

  • preheater system — A cold starting aid for diesel engines, consisting of glow plugs, a glow control unit, and a glow plug and starter switch, for preheating the combustion chamber or the intake air up to auto ignition temperature …   Dictionary of automotive terms

  • Air preheater — An air preheater or air heater is a general term to describe any device designed to heat air before another process (for example, combustion in a boiler) with the primary objective of increasing the thermal efficiency of the process. They may be… …   Wikipedia

  • preheat — preheater, n. /pree heet /, v.t. to heat before using or before subjecting to some further process: to preheat an oven before baking a cake. [1895 1900; PRE + HEAT] * * * …   Universalium

  • Cement kiln — Cement kilns are used for the pyroprocessing stage of manufacture of Portland and other types of hydraulic cement, in which calcium carbonate reacts with silica bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of… …   Wikipedia

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