The outer wall made of Mild steel sheet powder coated. High grade ceramic wool insulation to minimize thermal loss. Temperature range from 100°C to 900°C maximum design Temp. 1000°C working 940°C. Heating Element made of Kanthal wire special high temperature alloy to ensure uniform distribution of heat. To work on 220/440 volt, 50Hz. Single or Three Phase Supply. Inner chamber size: 225 x 100 x 100 mm ( 9" x 4" x 4" ) Connected Load Weight: 1.5