Whether you're supplementing cooling and heating in an entry or an interior room, you'll appreciate the power and efficiency of this heat pump. Its Inverter compressor and outdoor fan can accurately match load to drive efficiency and keep temperatures even. If you are more concerned with assuring consistent temperatures year round you'll be able to cool in temperatures as low as 23° F (0° F with optional wind baffle) and heat in outdoor temps ranging from -4 to 59° F. And with line lengths of up to 245' (depending on system configuration) this versatile unit can go just about anywhere. The RAVAT heat pump can be matched with the RAVKR High Wall, RAVUT Cassette, or RAVCT Underceiling indoor units to create the RAV Single Zone Ductless System.