The walk-in oven has 4” thick insulated walls and an aluminized steel interior and exterior. A four-port vacuum manifold, with pressure gauge and hand valve on each port, is included on the oven, as is a solenoid valve to bleed air into the manifold and a resin trap leading to the vacuum pump. A two-stage rotary vacuum pump rated at 10 cfm is provided. A 500°F (260°C) walk-in oven, No. 1016 was designed for composite curing applications. It has a 72 x 120 x 78” workspace, and 100 KW are 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.