open gas furnace
21Furnace — For other uses, see Furnace (disambiguation). Industrial Furnace from 1907 A furnace is a device used for heating. The name derives from Latin fornax, oven. In American English and Canadian English, the term furnace on its own is generally used… …
22open-hearth process — a process of steelmaking in which the charge is laid in a furnace (open hearth furnace) on a shallow hearth and heated directly by burning gas as well as radiatively by the furnace walls. [1885 90] * * * or Siemens Martin process Steelmaking… …
23furnace — n. 1) to stoke a furnace 2) a blast; coal; coke; gas; hot air; oil; open hearth furnace * * * [ fɜːnɪs] coal coke gas hot air oil open hearth furnace a blast to stoke a furnace …
24open-hearth process — noun a process for making steel using an open hearth furnace • Hypernyms: ↑steel production * * * noun : a process of making steel in a furnace of the regenerative reverberatory type from pig iron usually charged molten by adding to it with lime… …
25furnace — I (New American Roget s College Thesaurus) n. See heat. II (Roget s IV) n. Syn. heater, heating system, boiler, hot air furnace, steam furnace, hot water furnace, oil burner, gas furnace, electric furnace, annealing furnace, kiln, reduction… …
26The open air — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …
27Natural gas — For other uses, see Natural gas (disambiguation). Natural gas extraction by countries in cubic meters per year. Natural gas is a naturally occurring gas mixture consisting primarily of methane, typically with 0–20% higher hydrocarbons[1] …
28Pine Grove Furnace State Park — Geobox Protected Area name = Pine Grove Furnace State Park native name = other name = other name1 = category local = Pennsylvania State Park category iucn = III image caption = Historic remnants of the industrial past of Pine Grove Furnace at… …
29Electric arc furnace — An electric arc furnace (EAF) is a furnace that heats charged material by means of an electric arc. Arc furnaces range in size from small units of approximately one ton capacity (used in foundries for producing cast iron products) up to about 400 …
30Cornwall Iron Furnace — U.S. National Register of Historic Places U.S. National Historic Landmark …
