200L Compact Direct Thermosiphon Non Pressurized Vacuum Tube Solar Water Heater

How non-pressurized solar water heater works?

1. Non-pressurized solar water heater of all glass evacuated tube collector integrated with storage tank, are ideal for use in houses and other applications where cheap, reliable hot water supply is required. They are simple, economic and practical.

2. As the specific gravity of hot water and cold water are different, cold water goes downward and hot water goes upward.

3. When cold water in evacuated tubes is heated, it becomes lighter and goes to the water tank, while cold water in the tank goes down to the evacuated tubes.

4. Through this circulation, the cold water in the water tank will be gradually heated.

Features:

Inner tank: coated enamel

Vacuum tube: AL-N/AL 47-1500/58-1800mm

Outer tank: painted steel, 0.4mm thickness

55mm polyurethane foaming

Supporting frame: 1.2mm galvanized steel with rust-proof treatment

Glass thickness: 1.6mm

Reflectors are available

Capacities: 100, 150, 200, 250 and 300L

Working principle:

Larger proportion of hot water than cold water, cold water flows downward and hot water goes upward

Water will be heated continuously between water tank and vacuum tube

Hot water always floats on cold water

Hot water flows to water tank from vacuum tubes

Proportion cold water flows to vacuum tubes from water tank

Certificate:CE

Accessories:

Stainless bolts & nuts, water-proof silicon rubber, anti-aging dust-proof rubber seal, plastic pipe holder and ventilating cap to ensure their lives as long as other parts of the system

Optional Devices:

Assistant tank, automatically feed tap water into storage tank to keep it sufficient always

Electrical heater, as an auxiliary heating element in case of raining or cloudy days so as to ensure a continuous hot water supply

Intelligent controller, automatically controls water refill and switch on the auxiliary heating device, more intelligent system operation.

Warranty:

6 years international responsibility for integrated system exchange and 15 years for glass vacuum tube compensation due to original quality problems

Brand: PASSION & OEM

Color: Produced according to customer requirements

Place of Origin: China

Price Terms: FOB, CIF

Payment Terms: T/T, L/C

Supply Ability: 500 sets/day

Delivery Time: 7 days/according to the order

Minimum Order: 5 sets