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Solar water heater

Also called solar domestic hot water systems—can be a cost-effective way to generate hot water for your home. They can be used in any climate, and the fuel they use—sunshine—is free.
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Non Pressure Solar Water Heater With PVDF Out Tank

Non Pressure Solar Water Heater With PVDF Out Tank
Products Name: Non Pressure Solar Water Heater With PVDF Out Tank
Products Model: Non Pressure Solar Water Heater With PVDF Out Tank
Products Detail:

Non-pressure Solar Water Heater
.Competitive price and good quality
.5-15 years warranty

How non-pressure solar water heater works
1. Non-pressure 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 gravities 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 becaomes 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.

Non-pressure solar water heater features
1. Cheap and reliable solution, Simple structure, Easy installation
2. High efficiency
3. Withstands water pressure no more than 0.1MPa
4. Operated without any power supplying
5. Electric heater can be used as back up in rainy days
6. Hot water can be used directly, or can be used as a pre-heated

Solar hot water heating system optional accessories
1. Assistant tank: 3/5/8/10/12L
2. Controller
3. Electrical heater: 1.5/2/2.5kw

Solar hot water heating system specification



Non-pressure solar water heater

Material of out tank

wiredrawing steel/ fluorine carbon steel

Material of inner tank

Food grade SUS304 stainless steel

Tank insulating layer

45kg/m³ high-density polyurethane foamed

Inlet and outlet hole

Male G 1/2, 3/4

Solar collector tube

3.3 Borosilicate glass with N/Al coating

Thickness of glass tube


Vacuum tube tightness

P≤0.005 Pa



Emission ratio


Idle sunning property parameters


Average heat loss coefficient



1.5mm thickness galvanized steel

Structure of tank:

4 holes for air vent,overflow,water inlet and outlet,electric heater


Argon arc welding

Fastening pieces:

Made of stainless steel screw