compact non-pressurized 20 vacuum tubes solar hot water heater
Thermosyphon Solar Water Heater (compact non-pressurized system)
Galvanized Sheet Series
Thermosyphon solar water heater (compact non-pressurized system) is
comprised of three parts: water tank, vacuum tubes (collector), and
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
Thermosyphon solar water heaters can be used for ordinary families,
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)
167L for 4-5 people
Effective absorb area (m2)
White color galvanized sheet
SUS304-2B stainless steel, food grade
Dark Blue color galvanized sheet
Commom Vacuum tube
Borosilicate Glass 3.3
Mode of payment
TT, LC, Western Union
Vacuum tube: 25mm diameter hail resistance
Holding time of warm: 72 hours
Wind protection: 180km per hour
1. All of our thermosyphon solar water heaters are of CE
certificate, and our workers are skilled, so that we can ensure the
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.