The 15 SEER KSIN018-H215 18,000 BTU Inverter ductless mini split air conditioner with heat pump is a great cost efficient system for cooling areas up to 900 square feet. Advanced INVERTER DC Technology provides both energy efficient operation and low ambient operation start-ups. Additional features include auto-diagnostic functions, 24-hour timer sleep mode. Comes pre-charged with eco-friendly R410A and includes complete 16 ft installation Kit