Wisconsin Oven Corp. offers natural gas-fired batch ovens for drying pet treats. The ovens have chamber dimensions of 8-foot wide by 15-foot long by 6-foot high, with a maximum operating temperature of 500 F and a normal operating temperature at 220 F, the company says. The walk-in ovens are constructed with 4-inch thick tongue and groove panel assemblies, and 20-gauge aluminized steel interiors and ductwork. The heating systems feature 600,000 BTU per hour air heat burners including motorized gas control valves, flame detectors and flame relays with alarm horns. Industrial ovens also include non-insulated 12-gauge carbon floors with drip pans and have a NEMA 12 control enclosure.