C&H 21 SEER 18,000 BTU ductless mini split WiFi installed Karolina series with 25ft copper line set included Series: Karolina Functions: Cooling / Heating / Fan / Dehumidifying E.E.R.: 12.5 Heating Capacity (BTU): 18,000 Energy Star Compliant: Yes Zones: Single Zone C.O.P.: 12.01 Operating Room Size (Approx.): 750