Portable Electric Salamander Heater, Overall Height 25 in, Overall Depth 46 in, NEMA Plug Configuration Hardwired, Voltage 440/480V AC, 3 Phase, Wattage Output 16kW/32kW/40kW, Air Temp. Rise 100 Degrees F, Amperage 50A, Frequency 60 Hz, Heating Capacity 51,200 BtuH, 102,400 BtuH, 136,000 BtuH, Heating Method Convection, Fan Forced, Number of Heat Settings 3, Non-Oscillating, Thermal Overheat Protection Automatic Reset, Thermostat Included Unit-Mounted, Indoor Only, Housing Color White