Designed for curing large batches of industrial fuses, Grieve’s No. 826 500°F electric walk-in oven is a modified version of the company’s standard model WRH566-500 oven. It features workspace dimensions measuring 54 × 72 × 72 inches and 30 kW of power installed in Nichrome wire heating elements, while a 4,200-cfm, 3-hp recirculating blower provides horizontal airflow across the workload.
The oven has an aluminized steel interior and exterior, 4-inch insulated walls, a 2-inch insulated floor with two pairs of truck wheel guide tracks, two independent doors on the oven front opening with a removable mullion, and two shelf trucks with 10 shelf supports on 6-inch centers. Safety features include a digital programming temperature controller, manual reset excess temperature controller with separate heating element control contactors, recirculating blower airflow safety switch, 10-inch diameter circular chart recorder and a 30-hr shutdown timer.