13 heat-pump models in EPRELComfortZone ABModels13Avg SCOP4.65Across all listed modelsTop typeAir-to-water (10)Heat pump typesAir-to-water10 (77%)HP water heater3 (23%)Top models by SCOPRX65APPPSCOP 4.97kW 7RXC65APPPSCOP 4.97kW 7RXC50APPPSCOP 4.65kW 5RXCL50APPPSCOP 4.62kW 5RXC35APPPSCOP 4.60kW 3RX95NAPPPSCOP 4.60kW 4RX35AAPPPSCOP 4.60kW 3RXL35AAPPPSCOP 4.60kW 3See all 13 models →