Firebar definitions

Firebar

Replaceable cast-iron bars that form the base of the furnace and support the fire. These wear out frequently, so as designed for easy replacement.. See also Rocking grate
Found on http://en.wikipedia.org/wiki/Glossary_of_boiler_terms

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Firebar

NATO codename for Yak-28 all-weather fighter, Yakolev [SU]
Found on https://www.encyclo.co.uk/local/20785

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