Keep cool without racking up an expensive electric bill thanks to the Keystone KSTAT08-1HC 8000 BTU 115V Through-the-Wall Air Conditioner. This through-the-wall unit is great for cooling a single room up to 350 square feet. An included remote or the LED control panel lets you easily control the three-speed fan and temperature. A 24-hour timer lets you set the air conditioner to cool with the natural warming of the day. A quiet operation means you'll hardly notice it chugging away while a sleep mode and energy-saver mode help keep your operational costs to a minimum. The unit can also be used as a heater in chillier weather.