Keystone KSTAT12-2B Energy Star 12 000 BTU Through-The-Wall Air Conditioner with Follow Mebr Click below to buy on Amazon: 2014 Energy Star 98 EER rating br 12000 BTU air conditioner for through-the-wall installation Not suitable for window installation br Special 230-volt electrical outlet required Unit will not work with a standard 115V outlet br Cools a room up to 550 sq ft with dehumidification up to 25 pints per hour br 3 cooling speeds and 3 fan speeds with adjustable 4-way air flow