12 heat-pump models in EPRELChal -Tec GmbHModels12Top typeHP water heater (8)Top refrigerantR32 (4)Heat pump typesHP water heater8 (67%)Air-to-air4 (33%)RefrigerantsR324 (33%)Top models by SCOP10046103APkW 5.7R R3210046100APkW 2.1R R3210046101APkW 2.4R R3210046102APkW 3.3R R3210045726B10046240B10046239A10045722BSee all 12 models →