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No. 1042 is a 2,000° F (1093°C), gas-fired heavy-duty furnace from Grieve. Workspace dimensions of this furnace measure 30” W x 60” D x 30” H. The furnace offers 750,000 BTU/HR, which are installed in four modulating natural gas burners with a floor mounted combustion air blower. Burners fire below hearth, with 9” thick insulated walls comprising 5” thick 2,300° F ceramic fiber, 4” 1,900° F block insulation and 8 1/2” floor insulation made from 4½” of 2,300° F firebrick and 4” of 1900°F block insulation.
This Grieve furnace has two lanes of roller rails supported by firebrick piers and an air-operated platform with roller rails to bridge from loading table to workspace. Features include a ¼” plate steel exterior reinforced with structural steel, ½” steel faceplate at doorway and an air-operated vertical lift door.
Other features include safety equipment required by IRI, FM and National Fire Protection Association Standard 86 for gas-heated equipment plus a free-standing 390 CFM high-pressure combustion blower.
Controls on the No. 1042 include a digital indicating temperature controller and manual reset excess temperature controller with separate contactors.