The LG 7,500 BTU 115V window-mounted air conditioner with 3,850 BTU supplemental heat function gives you everything you love about an air conditioner and more! whether it's cold in April or hot in October, this unit has you covered so you can always feel comfortable at home. In addition to cooling, this versatile unit offers supplemental heating, providing you with an additional heat source to your main heat source when outdoor temperatures are above 45 degrees Fahrenheit.Dry Air Flow (CFM):505