36 heat-pump models in EPRELCarrierModels36Avg SCOP4.38Across all listed modelsTop typeAir-to-water (36)Heat pump typesAir-to-water36 (100%)Top models by SCOP30WG-020AAPPSCOP 5.60kW 3330WG-020A + 274APPSCOP 5.50kW 3330WG-035AAPPSCOP 5.47kW 5061WG-020AAPPSCOP 5.47kW 3430WG-030AAPPSCOP 5.45kW 4330WG-025A + 274APPSCOP 5.45kW 3930WG-045AAPPSCOP 5.38kW 6430WG-030A + 274APPSCOP 5.32kW 43See all 36 models →