A walk-in oven used for composite curing has workspace dimensions measuring 72' wide by 120' deep by 78' high. With an operating temperature up to 500¡F (260¡C), it has 100 kW installed in Incoloy-sheathed tubular elements to heat the oven chamber. A 10,000-cfm, 10-hp recirculating blower provides horizontal airflow to the workload. The oven has 4' thick insulated walls in addition to an aluminized steel interior and exterior. Safety equipment for handling flammable solvents, including explosion-venting door hardware, is included.