No. 955 is a 500°F (260°C) electrically heated, top-loading oven used for testing electronic components. Workspace of the unit measures 312 x 24 x 24". Nichrome wire elements heat the oven while four 2-hp recirculating blowers provide 8,000 cfm horizontal airflow to the workload. The top-loading oven has 4" insulated walls throughout, aluminized steel exterior and interior, and a motor-operated, rear-hinged door.