1. Material of inner tank: SUS304-2B imported food grade stainless steel

    Thicknes: 1.2mm

2. Material of outer tank: colored steel

    Thickness: 0.4mm

3. Material of bracket: painted galvanized plate

    Thickness: 1.5mm

4. Copper coil: with dia of 12mm and wall thickness of 1.0mm

5. Assistant tank: 5L, 8L, 10L, 12L

6. Insulation: 55-60mm polyurethane foaming

Quality Guarantee:

1. we import advances technology and equipment from Germany to ensure the best quality

2. we have the strictly raw material purchasing project and department to ensure the best quality of the Vacuum Tube, the support and accessories

3. Special high quality insulated material to reduce the heat loss rate

4. exquisite workmanship to guarantee the decent apprearance

5. we have vigious Quality Control System to ensure all products being sold is working well 

6. we are the ISO9001 approved enterprise, and we have gained the CE certification 

7. we provide 36 months warranty for our Solar Water Heater, and Vacuum tube 15-20 years warranty