No pressure solar water heater

1. With intelligent controller.
2. Easy to install for flat roof and pitched roof,auxiliary heating by electrical heater.
3. High pressure polyurethane foaming with thickness 55mm.
4. Stable and reliable performance,well wind resistance.
5. Inner tank sillicon seals.
6. Outer tank against rust and corrosion.
7. Eco and ecconomical,improves the envirronment and save your fuel cost.