Grieve’s No. 839 electrically-heated 850°F walk-in oven is designed for heat treating and high-temperature batch paint baking. It measures 72 × 120 × 72 inches and features 120 kw in Incoloy-sheathed tubular heating elements, while a 12,500-cfm, 10-hp recirculating blower provides a combination horizontal/vertical airflow to the workload.
The oven is made from aluminized steel with 7-inch thick insulated walls, a 4-inch thick insulated floor and built-in truck wheel guide tracks. It has inner and outer door gaskets, sealing against the door plug and the front face, respectively.
The oven has all safety equipment required by NFPA Standard 86 for handling flammable solvents, including explosion-venting door hardware, a powered-forced exhauster air-flow safety switch and a purge timer. It also features a recording and programming temperature controller with separate contactors, and a recirculating blower air-flow safety switch.