This is a Dual - Media Kiln from Olympic Kilns ( model DM3018HE ). The Dual - Media kilns are designed for firing ceramics and glass. They are built with 3" brick and will fire to 2350F for high firing pottery and ceramic projects. The Dual - Media comes equipped with a lid element for glass fusing. This Kilns Dimensions are: Outside ( 39" front to back x 55" wide x 34" high), Inside ( 30" front to back x 42" wide x 20" deep = 12.2 Cu.Ft.)