solar furnace

American  

noun

1. a furnace using sunlight concentrated by concave mirrors as the direct source of heat.

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solar furnace British  

noun

1. a furnace utilizing the sun as a heat source, sunlight being concentrated at the focus of a system of concave mirrors

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Example Sentences

Beaming from an almost cloudless afternoon sky , our solar furnace showed the welcome warmth still available from its direct rays in mid-October.

From Washington Post • Oct. 14, 2022

Waste water is purified in a solar furnace and then piped back to the farm.

From Slate • Jun. 21, 2012

Zwicky would also produce carbon dioxide by focusing the rays of a solar furnace on rocks containing calcium carbonate.

From Time Magazine Archive

Other topics discussed by the electrochemists in Washington: � Chemist W. M. Cohn of Berkeley, Calif, described the solar furnace invented in Germany which he uses for high-temperature work.

From Time Magazine Archive

If submitted to the heat of this appalling solar furnace, an iron poker, for instance, would vanish into invisible vapor.

From McClure's Magazine, Vol. 6, No. 2, January, 1896 by Various