Solar water heater

The utility model discloses a solar water heater, including water tank, thermal -collecting tube and ring base, the bottom of water tank is connected with the top of thermal -collecting tube, the thermal -collecting tube is between circular distribution range and water tank and the ring base, and the bottom of thermal -collecting tube is connected with the ring base, the water tank includes inlayer tank wall and outer tank wall, inlayer tank wall detachable just is provided with the ultraviolet generator in being fixed in outer tank wall in the outer tank wall, be provided with ozone generator on the inlayer tank wall, its inside fixing along its periphery is provided with the sealed tube, the thermal -collecting tube includes outer tube and inner tube, the inner tube is totally closed pipe fitting, and the one end of inner tube stretch out the outer tube and insert the inlayer tank wall inside, the other end sets up in the outer tube. The utility model discloses collecting efficiency is high, the rate of utilization is high, restraines small suspended solid to water tank and adhering to of thermal -collecting tube inner wall and breeding of bacterium, water purification, improvement life -span.