Novel solar water heater

The utility model provides a novel solar water heater includes solar energy collection pipe, water tank, be equipped with sealed the pad between solar energy collection pipe and the water tank, the intraductal heat pipe that is equipped with of solar energy collection, two ends of heat pipe seal, and heat pipe one end penetrates solar energy collection pipe lower extreme on the solar energy collection pipe, and the other end passes sealed the pad and establishes in the water tank, is equipped with the supersaturated solution sodium acetate in the heat pipe, and the volume that supersaturated solution sodium acetate volume is in the heat pipe is 70% -85%. The utility model has the advantages of, can save solar energy, utilize the water of storage solar energy in to the solar energy water tank to carry out secondary heating.