420L economical 70 compact non-pressure freestanding solar heating

Working principle
As water in the collector is heated, it becomes lighter and naturally rises into the tank above. Meanwhile, cooler water in the tank flows downwards into the collector, thus causes circulation throughout the system.

Features

1. Temperature preservation is equipped with standard electric water heater 

2. Scientifically designed bracket can hold the tank firmly

3. High quality vavuum tubes

4. Simple structure, easy plug-in installation. Cheap and efficient

5. Guaranty: 5 years for tank, 15 years for collector and lifetime service

6. Colors according to customers’ needs

Specifications

1) Bracket: thicken galvanized anticorrosive steel. Stainless steel.

2) Vacuum tube: 70mm x 1.8m (15pcs - 42pcs).According to customers’ needs.

3) Inner tank: SUS304-2B food grade stainless steel

4) Outer tank: thicken galvanized anticorrosive steel. Stainless steel.

5) Capacity: 150L - 420L(according to cutomers' needs)

6)Assistant tank: galvanized or stainless steel(8L)

7) Insulating layer thickness: ≥50mm Freon-free polyurethane

8) Pressure: 0Pa