heat pipe collector 1. CE, solar keymark, SRCC approved 2. 5 years gurantee & 15 years ... temperature preservation superior.7) A entire set of split solar water heater consists with solar collector, storage tank, working station and installation parts.8 ... installation angle45, 0, 90,can be customized,suitable for balcony, flat roof, sloping roof, wall, platform, ground etc.8Tube materialBorosilicate ...