Ruud Heat Pumps RP14Up to 14 SEERUp to 9 HSPFUp to 11.5 EER RP14-FUp to 14.5 SEERUp to 8.5 HSPFUp to 12 EER RP15Up to 15 SEERUp to 9 HSPFUp to 13 EER RP16Up to 16 SEERUp to 13 EER RP17**HUp to 19 SEERUp to 10.7 HSPFUp to 12 EER UP17Up to 15 SEERUp to 9 HSPFUp to 13 EER UP20Up to 21.95 SEERUp to 11.5 HSPFUp to 15.3 EER WP14**AUp to 14 SEERUp to 11.5 EER WP14**FUp to 14 SEERUp to 8.5 HSPFUp to 11.5 EER