LG LT1236CER 11,500 BTU 230V Through-The-Wall Remote Control Air Conditioner, White 016 energy star: 10.5 energy efficiency Ratio (EER) dBA level (indoor / outdoor):59/65. 11,500 BTUs cools a room up to 530 sq. Ft Through-the-wall installation (not suitable for window installation) Special 230V electrical outlet required (unit will not work with a standard 115V outlet) 3 cooling speeds/3 fan speeds for more cooling flexibility