Cool Living AC 10,000 BTU Energy Star Window Mount Air Conditioner A/C + Remote Cools a room up to 450 sq ft Designed to be installed in a standard double-hung window with a window width of between 23" and 36" Remote Control has a signal range up to 20 feet Thermostat range of 64 - 86 degrees Fahrenheit (cooling only) Programmable Timer runs anywhere from 0.5-24 hrs