Solar Manufacturing built, shipped and installed a vacuum furnace for a commercial heat-treating and brazing facility in eastern Pennsylvania. The Mentor has stainless steel chamber, a work zone measuring 12 inches x 12 inches x 18 inches and a maximum operating temperature of 2400°F (1315°C) with a workload capacity of 250 pounds. The furnace includes a VHS 6-inch diffusion pump for vacuum performance in the 10^-6 torr range, a high-performance 7.5-HP fan motor for internal gas quenching up to 2 bar and the SolarVac fully automated and programmable controls package with a Eurotherm digital recorder.