... day, the water in the tank is gradually heatedHeat pipe solar collector technical specificatonManifold casing material: aluminumFrame material:aluminumHeader pipe ... flat roof/inclined roofMounting angle:15-50CInlet:3/4"E Solar collector(Heat pipe series)SC-H seriesModelSC-H-15- ... 4,Service Life,10 years Mounting FrameAluminum Alloy,Thickness,1.8 mm, not have back-leg Rack InsertABSDimension(CBM)0. ...