Designed for a room up to 450 square feet, the Emerson Quiet Kool 4-in-1 SMART air conditioner gives you flexible home comfort options. Not only will this unit cool the room with 10,000 BTUs of power, it can also provide 10,600 BTUs of supplemental heating for cool, brisk nights. On top of that, it can also function as a fan for air circulation and a dehumidifier for lowering humidity in the room. With Wi-Fi you can control and monitor your AC with your smartphone while you are on the go or with voice commands at home. This model is designed for through-the-wall installation and is not designed for standard window installation. It will fit most existing wall sleeves and includes a decorative interior trim kit. This unit also requires a special 230-volt/20-amp electrical outlet and will not operate with a standard 115V household electrical outlet. For peace of mind, you get our 1-2-5 years warranty: 1 year labor, 2 years parts and 5 years compressor. Emerson Quiet Kool air conditioners are a great way to stay comfortable.