Ariston Nimbus M Hybrid Universal Net R32 12 kW Three-Phase Inverter A++ WiFi air-water heat pumpAriston Nimbus M Hybrid Universal Net R32 12 kW Three Phase Inverter A++ WiFi air water heat pump Ideal for units of approximately 120 m2 with an average height of 2. 7 m The Nimbus M Hybrid Universal Net R32 heat pump contains the efficiency and reliability of the Ariston brand, also adding the predisposition for the creation of a universal hybrid system. This heat pump in fact, it can be combined with any boiler as it is equipped as standard with a