The LG 18000 BTU 230V window-mounted air conditioner is perfect for cooling a room up to 1000 square feet. You will cool a lot and save even more with this unit's energy saver function 24-hour on/off timer and a 11.9 Energy Efficiency Ratio. With its stylish full-function remote you can even get your cool on from across the room. Plus LG's patented Gold Fin anti-corrosion coating provides a protective shield so the unit lasts longer. PLEASE NOTE: This unit requires a special 230V electrical outlet and will not operate with a standard 115V household electrical outlet.