Ultra High Efficiency Inverter ductless mini split heat pump system Cooling capacity: 9,000 BTU/H with 18 SEER efficiency Heating capacity: 9,000 BTU/H with 9.5 HSPF efficiency Voltage: 208~230V, 60Hz, 1Ph High Wall Mounted Air Conditioning & Heating System Variable Speed DC Inverter Operation Mode Customizable length copper line set with flare connections AHRI Estimated Annual Operating Costs: Cooling: $67.00 Heating: $220.00 Refrigerant R410A Pre-Charged Outdoor Unit, accommodating refrigerant line lengths up to 25 ft. per circuit.