Big Shot firing chamber size: 14" wide X 9" deep, 7 sided, .84 cubic feet, 120 volt, 20 amp. 2.4 K.W., maximum cone 6. Good wide body kiln for the ceramic hobbyist. Will accommodate those larger pieces with convenience of still only requiring 120 volts power. Not to be used for porcelain firing, other than china paint fires. This little kiln has too much cubic feet area to heat to toally mature porcelain from greenware stage to full cone 6 maturity. Great for ceramic, glazes, decals, china paint, gold and luster. Big Shot has a Dawson Kiln Sitter as a standard feature for cone firing with auto shut off. Lid and bottom are reversible. Kiln is dropshipped via UPS.