The Square 146GFE runs on 120v - requires 20 amp breaker. Inside dimensions 14.5" x 14.5" wide x 6" deep, .73 cubic feet. Lid element for fusing and slumping, and 3-key controller. Models come equiped with pilot light, 18" tall metal stand, and stainless steel jacket. Fires to 1700 degrees. Furniture Kits for 120 volt glass fusing kilns include 2 layers of shelving for stacking ware, assorted square posts, ceramic paper and a one pound bag of kiln wash. Instruction manual, and warranty card included.Two-year warranty.