Advantages:
1. Novel design & easy to install.
2. Completely use the hot water in solar vacuum tube.
3. Automatic water refill to the tank.
4. Humanization control, can choose one or two water compartment for auxiliary heating, increase the electrical heater efficiency.
5. Heat concentrated, can automatically transfer the heat from cold and warm water compartment to hot water compartment.
6. Capacity: 180L/240L/300L