Grieve 2000°F Gas-Fired, Heavy-Duty Furnace


No. 1042 is a 2000°F (1093°C) gas-fired heavy-duty furnace from Grieve, currently being used for heat treating at its customer’s facility. Workspace dimensions of this furnace measure 30" W x 60" D x 30" H.  Also, 750,000 BTU/HR are installed in four modulating natural gas burners with a floor-mounted combustion air blower. Burners fire below hearth, with 9-inch-thick insulated walls comprising 5-inch-thick 2300°F ceramic fiber, 4-inch 1900°F block insulation, and 8 1/2-inch floor insulation made from 4½ inches of 2300°F firebrick and 4 inches 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-inch plate steel exterior reinforced with structural steel, ½-inch 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.