Used to heat stainless steel prior to welding, No. 812 has workspace dimensions of 6 x 3 x 3". With 40 kW installed in Incoloy-sheathed tubular elements that heat the workspace, the oven has a 3300-cfm, 2-hp recirculating blower to provides horizontal airflow to the workload. The 650°F (343°C), high temperature top-loading oven has 5" insulated walls, aluminized steel interior and exterior, and a reinforced 0.25" steel-plate top. Features also include an air-operated rear hinged door and wear bars at the sides of the workspace. The floor of the workspace is reinforced for 3000 lb loading at a removable subway grate.