Designed to a cool room up to 450 square feet, the Emerson Quiet Kool 230-volt 10,000 BTU through-the-wall air conditioner is the perfect cooling solution for your home or office. This model is designed for through-the-wall installation and is not designed for standard window installation. It will fit most existing wall sleeves (including our competitors) 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. Convenient features include a remote control, 24-hour on/off timer, and sleep mode. 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 beat the heat and stay comfortable.