No. 1042 is a 2000°F (1093°C), gas-fired, heavy-duty furnace designed for heat treating. Workspace dimensions measure 30 inches wide x 60 inches deep x 30 inches high, and 750,000 BTU/hour 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 inches of 2300°F ceramic fiber and 4 inches of 1900°F block insulation. The 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. Controls include a digital indicating temperature controller and manual reset excess temperature controller with separate contactors.
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