Model: Olympic Kiln - 3031HE Inside Dim: 42" (width) x 30" (depth) x 33.5" (height) - 20.5 Cubic Feet Outside Dim: 55" (width) x 53" (depth) x 53.5" (height) Shelf Size: 26" x 39" Oval Shelf - NOT INCLUDED Brick Thickness: 3" Brick Max Temp: 2350°F Voltage: 240 volts Amperage: 110 amps (Single Phase) / 80 amps (3 Phase) Watts: 20,400 watts Receptacle: DIRECT WIRED Ship Wt: 765# (Freight) MODEL PHASE AMPS BREAKER SIZE NEMA PLUG 3031HE 240V 1 85 110 DIRECT 3031HE 208V 1 98 130 DIRECT 3031HE 240V 3 55 80 DIRECT 3031HE 208V 3 64 80 DIRECT