Electrical power required: 120 V 60 Hz/15amp Wattage: 1780 Watts Outer dimensions: 76"(L)x76"(W)x 74"(H) Inner dimensions:50"(L)x50"(W)x70"H) Load capacitv: 2 Person Load weight capacity: 460 Lb Number of heaters: 6 Max temperature: 65C Min temperature: 18C Door dimensions: 62"(H)x 21"W). Contact Myron Miller with any questions 574-536-6306