An electrically heated batch oven from Wisconsin Oven cures composite material for the aerospace industry. The oven's dimensions are 4 x 4 x 6 ft. Maximum operating temperature is 650°F, and normal operating temperature is 400ºF. Features include 6-in-thick tongue-and-groove panel assemblies, 20-gauge aluminized steel interiors and ductwork, and 2-in-thick reinforced, insulated floor with wheel guides. Incoloy-sheathed heating elements provide a total of 48 kW with solid-state relay power control. The recirculation system has a blower that provides 4500 ft3/min at 5 hp and uses combination airflow to maximize heating rates and temperature uniformity. Temperature is controlled via a Watlow F4D programmable controller; over-temperature protection is provided by a Barber Colman high-limit controller.