Ductless System Type Ductless System Type Multi-Zone Ductless (10)Single-Zone Ductless (6) Up to 25 SEERUp to 11.3 HSPFUp to 28.1 SEERUp to 14 HSPFUp to 18 SEERUp to 11.5 HSPFUp to 19.8 SEERUp to 11.2 HSPFUp to 17 SEERUp to 9 HSPFUp to 17.5 SEER