Model: Olympic Kiln - 3023HE Inside Dim: 42" (width) x 30" (depth) x 24.5" (height) - 14.9 Cubic Feet Outside Dim: 55" (width) x 53" (depth) x 44.5" (height) Shelf Size: 26" x 39" Oval Shelf - NOT INCLUDED Brick Thickness: 3" Brick Max Temp: 2350°F Voltage: 240 volts Amperage: 70 amps (Single Phase) / 47 amps (3 Phase) Watts: 16,800 watts Receptacle: DIRECT WIRED Ship Wt: 595# (Freight) MODEL PHASE AMPS BREAKER SIZE NEMA PLUG 3023HE 240V 1 70 90 DIRECT 3023HE 208V 1 81 100 DIRECT 3023HE 240V 3 47 60 DIRECT 3023HE 208V 3 54 70 DIRECT