This premium heat pump water heater is equipped with smart functions that consider usability throughout the four seasons and with a dual inverter for maximum efficiency and convenient hygiene control. The product has a rounded rectangular design that differentiates it from other existing water heaters and emphasizes its rigidity. Its modular design uses a single cycle unit to control water tanks of two different capacities. The product provides a seamless service panel, which makes repair and maintenance easy and allows the user to keep the exterior clean.