Detailed Product Description of High Qualiaty Solar Water Heater1)High efficiency2)High quality3)Long life span4)Beautiful designÿÿTube:ÿ1) Material of cover tube: Borosilicate glassÿ2) Diameter of cover tube:58mmÿÿÿ Thinckness of cover tube:1.6mmÿ3) Diameter of inner tube:47mmÿÿÿÿ Thickness of inner tube:1.6mmÿ4)Transmission of the cover tube:>94%ÿ5)Selective coating:ALN/ALN-SS/CUÿ6)Emissivity coeffcient:<7%ÿ7)Distance from tube to tube:7.8mmÿ8)Material of the absorber pipe:copperÿ9)Dimension of heat pipe: condensor, è14mm*1mm, body, è 8mm*0.8mmÿManifold:ÿ1)Material of the header pipe:copperÿ2)Dimension of the header pipe:è35mm* 1mmÿ3)Innerÿflowingÿÿpipe of manifold :è22mm*1mmÿ4)Material of manifold: Aluminum alloyÿ5)Thickness of manifold:2mmÿInsulation:ÿ1)Material of insulation: Polyurethane or rockwoodeÿ2)Thickness of the insulation: 35mm or 45mmÿ3)Sealing material:rubberÿBracketÿ1)Material:aluminum alloyÿ2)Thinckness:1.8mm