Box Furnace

A gas-fired heavy-duty box furnace designed to anneal spools of aluminum wire used in electrical cables has total chamber dimensions of 14 feet, 6 inches wide x 13 feet, 9 inches long x 17 feet high and a maximum operating temperature of 800ºF. The furnace shell is constructed with Wisconsin Oven’s patented, high-efficiency Expandable Surface™ design. This design includes 6 inches of semi-rigid batt-type insulation and a segmented sheet-metal interior. The outer shell is made of 3/16-inch carbon steel plate, and the inner shell and ductwork are 20-gauge aluminized steel. The furnace heating system consists of four tube-fired burners and a combustion blower. The recirculation system has a 39,000-CFM plug-style blower and utilizes a combination airflow design to maximize heating rates and temperature uniformity.