This thermal water heating system from Eagle Sun uses a 120 gallon tank paired with a large 96 square foot solar collector. Never run out of hot water again as the heating water is continuously passed through the storage tank transferring heat to the stored water. The system is engineered using a closed loop preventing the water sources from mixing. The system is equipped with a drainback system that emptiest he heating liquid during low times of use or once a maximum water temperature has been reached. The system is engineered with a drainback reservoir for use in colder climates.