Vornado MVH Whole Room Vortex Heater, Black Vortex technology fully circulates warm air evenly throughout the whole room Thermostatic temperature control to dial in a desired heat setting 3 heat settings (750W, 1125W, 1500W) to tailor heat output and energy consumption Advanced safety features including tip-over protection and automatic safety shut-off system for worry-free use Whisper-quiet operation and backed by a 5-year limited warranty. Tip over protection Built to meet U.S. voltage requirements. Certified, safety-tested, and warrantied for use only in the U.S.