Electrical power required: 120 V 60 Hz/15amp Wattage: 2100 Watts Outer dimensions: 57"L)x41"(W)x 74"(H) Inner dimensions: 54"(L)x38"(W)x70"(H) Load capacitv: 3 Person Load weight capacitv: 690 1b Number of heaters: 7 Max temperature: 65ƒ Min temperature: 18ƒ Door dimensions: 62(H)x 21"W). Contact Myron Miller with any questions 574-536-6306