Solar water heater with assistan tank features: The assistant tank is used to supply the cold water automatically. When the water tank reduces to a certain level, the assitant tank will supply the cold water automatically untill the water tank is full. The angel of bracket is decided according to your latitude. Its performance is stable, reliable and easy installation. It adopts scientific structure to reach the best performance. The system can be perfectly integrated with architecture. The system can endure the maximum pressure up to 0.2 Mpa.