5 heat-pump models in EPRELWarmflow Engineering Co Ltd.Models5Avg SCOP4.12Across all listed modelsTop typeAir-to-water (3)Heat pump typesAir-to-water3 (60%)HP water heater2 (40%)Top models by SCOPGS08APPPSCOP 4.47kW 8AS03APPSCOP 4.00kW 17AS02APPSCOP 3.90kW 11DI180CDI300CSee all 5 models →