solar water heater

Detailed Product DescriptionVacuum tube specifications: Ø 58 x 1, 800mm Vacuum tube quantity: 30 PCS Sunlight collection area: 4.2 sqm Install 1.8*2.6 sqm. Inner water tank shell is made of SUS304/2B food grade stainless steel plates, outside tank material is colorful steel plates, and welded by automatic argon arc by laser. Water is pure and drinkable. . Thermal insulation of water tank adopts polyurethane foam; Thickness is 50-55mm...Silicon rings to connect and seal. . The tubes and bracket are adjustable; Power bearing is average, which can make sure the vacuum tubes in good condition for a long time. . The glass vacuum tubes adopt super hard borax and silica glass. . Absorbing rate: 94%, thermal radiation rate: 6%(100 Celsius Degrees). . Resist 25mm hail dropping, using life can last about 15 years.