No. 955 is a 500ºF (~260ºC) electrically heated, top-loading oven for testing electronics components. Workspace measures 312" x 24" x 24". 70KW are installed in Nichrome wire elements to heat the oven; 8000CFM total from a series of four 2HP recirculating blowers provide horizontal rear to front airflow. Has 4" insulated walls, aluminized steel exterior and interior, a motor-operated rear-hinged door opening the top and front, and a workspace floor reinforced for 7200 lbs. loading onto the 1/4" steel plate surface. No. 998 features digital programming temperature controller with two channels. Has two manual reset excess temperature controllers with separate contactors and four recirculating blower airflow safety switches.