6 heat-pump models in EPRELBulg Frank Topnik GmbHModels6Avg SCOP4.74Across all listed modelsTop typeAir-to-water (4)Heat pump typesAir-to-water4 (67%)HP water heater2 (33%)Top models by SCOPBULG Mono Pro 15,2 KWAPPPSCOP 4.83kW 13BULG Mono Pro 6,1 KWAPPPSCOP 4.80kW 5BULG Mono Pro 9,1 KWAPPPSCOP 4.77kW 7BULG Mono Pro 50 KWAPPPSCOP 4.55kW 35BULG AquaHeat Pro 80LAPBULG AquaHeat Pro 300LAPSee all 6 models →