Non-pressure solar water heater
Low cost
High heating efficiency
Few maintenance
Easy installation

Non-pressure solar water heater is a kind of solar water heating system that solar collector and storage are connected together with the cylinder storage on the top and collector panel on the bottom. There is no need of pump to push the fluid and no need of pipeline between the collector and storage. It is a simple and safe solution to get heat power from the sun.

Advantage:

1) The material of the outer tank is SUS304 2B stainless steel or Galvanized steel. The material of the inner tank is SUS304 2B stainless steel.

2) The life of the vacuum tubes is 15 years.

3) Stable and reliable performance, well resistance.

4) Temperature when exposed to sun without water: 250C, 2.5 hours to boiling point if using single tube.

5) It resists 25mm hail.

6) Heat preservation: 72 hours.

7) optional accessories: assistant tank, electric heater

Specification

1. Non-pressurized solar water heater.
2. Inner tank stainless steel 0.4mm-0.6mm thickness SUS304
3. Outer tank: 0.31mm-0.4mm thickness Fulorine Carbon Plate/Wiredrawing Metal Plate
4. Vacuum tube: 47*1500mm, 58*1800mm
5. Reflector (optional) Aluminum or stainless steel.
6. Fastness: Stainless steel screws.
7. Heat preservation: 72-96 hours.
8. Heat insulating layer: 55-60mm polyurethane.
9. Frame: 1.2thickness Aluminum Alloy
10. Rubber ring

Warranty:
1. 5 years manufacturer's warranty against deffects in material and workmanship.
2. 15 years for vacuum tube