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Changzhou Sunfield Solar Technology Co., Ltd
Changzhou Sunfield Solar Technology Co., Ltd We are engaged in the research, development, manufacturing and marketing of solar water heaters, and solar collectors.
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100L Non-Pressurized Solar Water Heater With Three Target Vacuum Tube

100L Non-Pressurized Solar Water Heater With Three Target Vacuum Tube

Place of Origin : Changzhou, China (mainland)

Brand Name : Sunfield

Certification : CE, SRCC, Solar Keymark

Model Number : SF-1800-58-470-12-SCN (100L)

MOQ : 1 set

Packaging Details : Cartons Dimension (mm): Water Tank: 1140 x 500 x 500 Support/Bracket: 1850 x 100 x 350 Vacuum Tube:

Delivery Time : For one 40HQ container quantity, within 15 working days after we receive the pre-payment.

Payment Terms : TT, LC, Western Union

Supply Ability : 3000 sets per month

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Home Solar Water Heater (compact non-pressurized system) Galvanized Sheet Series

SF-1800-58-470-12-SCN 100L , 25mm diameter hail resistance


Thermosyphon solar water heater (compact non-pressurized system) is comprised of three parts: water tank, vacuum tubes (collector), and support (bracket).
Working principle: Non-pressure solar heating is a kind of solar water heating systems that the bellow collector directly connects with the above water tank.
This solar water heater do not need to run the pump to force and do not require pipeline connections between the collector and the water tank. It is a simple and secure way to collect solar energy. The working principle of solar water heater is to make a natural circulation between the water tank and the collector.
a. The high quality vacuum tubes absorb the solar ray to heat the cold water in the vacuum tube.
b. The hot water rises in the top of the water tank from the vacuum tubes, and the cold water from the water tank sinks to the vacuum tubes to be heated by solar collector. So the whole system is always circulating continuously.
c. You can use a controller or an auxiliary tank to let the water fill the water tank automatically.


1. Lowest price. Most family can afford it.

2. Highest efficiency. The water fills the whole system, so that the heat loss is the least.

3. There is no need to wait and the hot water is available immediately.

4. Three target vacuum tube: more efficient

Thermosyphon solar water heaters can be used for ordinary families, or appartments.
Several solar water heaters can also be installed in array to form a solar project.
Bath room, hand/clothes wash, kitchen




Water Tank Capacity (L)

100L for 2-3 people

Effective absorb area (m2)



Outer Tank


Silver color galvanized sheet

Diameter (mm)


Thickness (mm)



Inner tank


SUS304-2B stainless steel, food grade

Diameter (mm)


Thickness (mm)



Insulating layer



Thickness (mm)





Black color galvanized sheet

Thickness (mm)


Angle (degree)



Three-target Vacuum tube


Borosilicate Glass 3.3

Thickness (mm)


Diameter (mm)


Length (mm)



AL-N-SS-CU (aluminum nitride, stainless steel, copper)


Mode of payment

TT, LC, Western Union


Delivery time

15 days



5 years


Service life

15 years

Vacuum tube: 25mm diameter hail resistance

Holding time of warm: 72 hours

Wind protection: 180km per hour

Competitive Advantage:
1. All of our thermosyphon solar water heaters are of CE certificate, and our workers are skilled, so that we can ensure the top quality.
2. In our working room, we have a special producing line for thermosyphon solar water heaters, and the productivity is increased dramatically, so that we can ensure the delivery time.
3. For every order, we provide spare parts, such as vacuum tube, silicon rings, and decoration rings.
4. We have professional team from before sale to after sale. We can produce the products as your requirement, and we can also make a design for you. If there is any problem of installing and using, we can solve it for you very soon.
5. The solar water heaters are easy to install and maintain.
6. Our thermosyphon solar water heater (compact non-pressurized system) has good reputation in Africa, especially in South Africa. We are doing the government projects. We also have good market in Middle East area.

Product Tags:

heat pipe solar water heater


solar hot water panels

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