Solar water heater:

1. Heated it rises naturally into the tank, while cooler water in the tank flows down to the bottom of the evacuated tubes, causing circulation throughout the system.

2. Cheap solution, high reliability, Simple structure, Easy installation.

3. High efficiency with daily average efficiency higher than 50%.

4. Could be installed using parallel and/or series connections.

5. Auxiliary electric booster is optional. 1500W.