No. 1011 is a 500°F, four-door cabinet oven to be used for stress relieving stainless steel parts. Workspace dimensions measure 20 inches wide x 28 inches deep x 36 inches high in each of the four compartments in the oven. The oven features 4-inch-thick insulated walls; an aluminized steel exterior; Type 304, 2B stainless steel interior; shelf truck with shelf supports on 4-inch centers; stainless steel loading trays with integral holes to hold parts in place; and a transfer dolly with an oven-to-dolly latch to hold the trays for loading onto the supported shelves in the four chambers. A 6,000-CFM, 5-HP recirculating blower provides independent horizontal airflow to the workload in each compartment, and 30 kW are installed in Incoloy-sheathed tubular elements to heat the oven chamber. Controls include a digital indicating temperature controller, manual reset excess temperature controller with separate contactors and a recirculating blower airflow safety switch.