No. 817 is a 500°F electric truck oven constructed from Type 304 SS including supply and return ductwork, the entire heat chamber and the recirculating blower wheel. workspace dimensions inside this unit measure 48x48x60 inches. Features of the unit include rugged construction, including four-inch insulated walls, two-inch insulated floor with truck wheel guide tracks and an aluminized steel exterior and Type 304. A digital indicating temperature controller, manual reset excess temperature controller with separate heating element control contactors and recirculating blower airflow safety switch are among the safety equipment built into this truck oven.