The 350°F (177°C), modified shelf oven has a 1000-cfm, 1-hp recirculating blower that provides horizontal airflow to the workload. Features include 4” insulated walls; an aluminized steel exterior and Type 430 stainless steel interior; two shelf trucks with supports on 9” centers to correspond to wheel supports in oven; and two tiers of wheel tray supports to aid in loading trays from oven to trucks. Additional features include 350,000 BTU/hr installed in a modulating natural gas burner. No. 879 is used to preheat bulk friction material in trays.