5 heat-pump models in EPRELFirebird Heating Solutions LimitedModels5Avg SCOP4.87Across all listed modelsTop typeAir-to-water (5)Heat pump typesAir-to-water5 (100%)Top models by SCOPASH010FHPAPPPSCOP 5.20kW 9ASH006FHPAPPPSCOP 4.95kW 7ASH004FHPAPPPSCOP 4.85kW 5ASH014FHPAPPPSCOP 4.73kW 14ASH016FHPAPPPSCOP 4.62kW 15See all 5 models →