No. 1039 is a 2000°F (1093°C) inert-atmosphere furnace used for heat treating turbine components. Workspace dimensions measure 36 inches wide x 60 inches deep x 36inches high, and 73 kW are installed in ICA wire coils supported by vacuum-formed ceramic fiber installed on all interior surfaces. The heavy-duty furnace has a roof-mounted, heat-resisting-alloy circulating fan powered by a 1-HP motor with V-belt drive, water-cooled bearings and inert-atmosphere shaft seal. Controls include a digital programming temperature controller, a manual reset excess temperature controller with separate contactors, paperless event recorder and SCR power controller.