65 heat-pump models in EPRELRHOSS SPAModels65Avg SCOP4.35Across all listed modelsTop typeAir-to-water (61)Heat pump typesAir-to-water61 (94%)HP water heater4 (6%)Top models by SCOPTCHETY+HPH/HPHCC 245APPPSCOP 6.57kW 63THHETU 245APPPSCOP 6.45kW 65TXHETYU 245APPPSCOP 6.38kW 64THHETY 245APPPSCOP 6.38kW 66THAITP 106 M PI0APPPSCOP 5.17kW 6THAITP 104 M PI0APPPSCOP 5.12kW 5THAITP 110 M PI0APPPSCOP 4.92kW 9THHETU 255APPPSCOP 4.77kW 1See all 65 models →