Frigidaire's FFTH1422R2 14000 BTU 230V Through-the-Wall Air Conditioner with 10600 BTU Supplemental Heat Capability is perfect for rooms up to 700 square feet. This unit 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 standard universal interior trim kit. New wall sleeves are sold separately. This unit also requires a special 230V electrical outlet and will not operate with a standard 115V household electrical outlet. In addition to cooling this versatile unit also offers supplemental heat capability providing you with an additional heat source to your main heat source when outdoor temperatures are above 45 degrees Fahrenheit. It quickly cools the room on hot days and quiet operation keeps you comfortable without keeping you awake. Plus the washable mesh filter with clean filter alert reduces bacteria room odors and airborne particles creating a comfortable environment.