Keystone KSTAW12C 12000 BTU 115V Window-Mounted Air Conditioner with Follow Me LCD Remote Control 2016 energy star: 12.0 energy efficiency Ratio (EER) 12,000 BTU air Conditioner for window-mounted installation 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 3 cooling speeds, 3 fan speeds, plus auto cool for cooling flexibility