1)There is no wait, we can get hot water at the shortest time.

2)Can operate with water pressure up to 0.6MPa.

3)No additional device for automatic filling water to the tank.

4)More pressure, more comfortable.

5)There are no water in the vacuum tube, so it cannot breakage due to the freeze weather.

6)The system will still operate in the event of occasional tube breakages.

7)it can placed on the very cold place., and easy installment.

8)it is seperated between water tank and solar water heater collector, so we can place it in my mind, and it also can cooperate with the around environment.