The HEAT Dura Pro is the top range inverter heat pump. Delivering extreme heating performance, effectively combined with high COPs regardless of cooler outside temperatures. You do not only save energy but can also keep the pool open for all year round swimming when climate permits. On top of all these benefits you will enjoy the silence thanks to a unique internal ventilation structure that keeps the noise very low, even reaching 25 dB in silent night mode. HEAT Dura Pro is offered in 5 different models ranging from 12, 17, 21, 25 and 28 kW.