Keystone KSTAT12-2C 12000 BTU 230V Through-The-Wall Air Conditioner with Follow Me LCD Remote Control 2016 energy star: 10.5 energy efficiency Ratio (EER) 12,000 BTU air Conditioner for through-the-wall installation (not suitable for window installation) Special 230-volt electrical outlet required (unit will not work with a standard 115V outlet) Cools a room up to 550 sq. Ft. With dehumidification up to 2.5 pints per hour Temperature sensing LCD remote control allows you control the temperature from across the room