... efficiency of the solar heater collector. Save much electricity. Main feature:1.Without water tank,improve the ... new basking way,bask water directly;3.Never mix water,give much hot water, water quality is clean and ... a lot.5.Food grade quality,the water can be drank directly6.Achieve building integration, ... Quality Certification Center. Our solar heater has no tank,and store the hot water by pipes, one ...