EnerG+ 900 watts free standing heater tower uses radiant infrared energy that requires no gas or other flammable fuels; it can be plugged into a standard 120V AC wall outlet and is water and dust resistant. Infrared heat is safe for the environment with zero carbon monoxide emissions and hardly affected by wind, making this unit cost effective and environmentally friendly. It can be used indoor as well as outdoors; its size (25" height) makes this unit very portable and fits nicely under or above most tables. The heater tower is covered with cool-touch technology material which makes it safe to the touch and prevents accidental burning. - Protection against rain and dust (IP24 ) - With low operating costs, it is much cheaper to use than a propane heater. - Safe and environmentally friendly with zero carbon monoxide emission - 900 watts of heating power - Uses a standard wall outlet 120 volt, 60Hz - It is hardly affected by the wind and is completely silent. - The bulb lasts about 5,000 hours. - 2 m (6''6") power cord - cETL certified