Wisconsin Oven Corp. shipped six propane-gas-fired, enhanced-duty walk-in ovens to a material-testing laboratory. The batch ovens, which will be used for hydrogen embrittlement relief of various parts, have a maximum operating temperature of 500°F and work-chamber dimensions of 8 feet wide x 4 feet long x 4 feet high. They were designed with the capacity to heat 1,020 pounds of steel and 220 pounds of a load cart from 70°F to 480°F within 60 minutes when loaded.

The ovens' recirculation systems utilize energy-efficient blowers and provide horizontal airflow. The heating systems use industrial air heat burners rated at 450,000 BTU per hour and modulating gas control valves. The ovens are designed with one electrically operated vertical lift door that splits into two sections horizontally.