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The vacuum tube is an important part of the solar water heater, which directly affects the water heating function. To learn more about what a vacuum tube is, please refer to this article right away!
What is a vacuum tube?
The vacuum tube is part of the solar water heater’s heat collection system. Vacuum tubes are made from transparent glass tubes , arranged along the surface of the flat inner plate of the water tank.
When the sun’s rays hit the glass tubes, the energy from the sunlight will be absorbed and converted into heat, heating the water in the vacuum tube.
Son Ha solar water heater 180 liters Eco 58-180 has 18 5-layer vacuum tubes that help collect heat well and make hot water fast
What effect does the vacuum tube have on the solar water heater?
When the sun’s rays hit the glass tubes, the energy from the sunlight will be absorbed and converted into heat, heating the water in the vacuum tube. At that time, hot water will be stored in an insulated tank to provide hot water for users.
The vacuum tubes are usually arranged in parallel and there is a vacuum layer between the tubes to minimize heat transfer. The vacuum tube increases the efficiency of absorbing heat from sunlight and minimizes heat loss due to radiation.
Son Ha solar water heater 200 liters Gold 58 – 200 for faster hot water with 20 high-grade 5-layer vacuum glass tubes
Common types of vacuum tubes on solar water heaters
Vacuum tube
Vacuum glass tubes work on the principle of natural heat convection through the tubes, transferring heat. The vacuum tube has a low transparency coating that converts solar energy into heat quickly.
In addition, this type of tube does not directly heat the water in the glass tube, which improves heat absorption. After the water has been heated, it will be circulated to an insulated tank for storage and use.
Son Ha solar water heater 160 liters Gold 58-160 uses 16 5-layer vacuum tubes
Oil pipe
The oil pipe prevents deposits from sticking to help keep the water source clean and prolongs the life of the product because water does not flow down the heat absorption tube. This type of tube operates by natural thermal convection and the phenomenon of the glass effect, which converts light energy into heat energy .
When sunlight shines on, the oil heats and boils, then transfers heat to the top of the tube in contact with the insulation to heat the water contained in the tank. The oil pipe is plugged directly into the insulation tank, causing the water in the tank to heat up and this process takes place continuously.
Oil tube of solar water heater
Some hot selling solar water heaters at Tnhelearning.edu.vn
Son Ha solar water heater 180 liters Eco 58-180
Reserve
10,080,000 won
See highlights
- Efficient heating without spending money thanks to solar technology.
- Capacity up to 180 liters , suitable for families of 3-4 members.
- 18 5-layer vacuum tubes help to collect heat well to make hot water fast.
- Leakproof and retains heat up to 72 hours with super heat-retaining Polyurethane insulation.
- Safer, more beautiful, and environmentally friendly thanks to the electrostatically coated shell.
- Sure, lighter with 304 stainless steel legs.
See details
Son Ha solar water heater 200 liters Eco 58-200
Reserve
12,400,000 won
See highlights
- There is no additional cost of electricity when using solar energy.
- Comfortable to use with a capacity of 200 liters suitable for families with 4-5 members.
- The inner pot with insulation made from Polyurethane, has the ability to super keep heat up to 72 hours.
- Good heat absorption, fast heating with 20 5-layer vacuum tubes.
- Modern and durable with the inner pot made of stainless steel SUS 304 according to European technology.
- Electrostatic plating cover, better protect the water heater from the outside.
- Sturdy, anti-rust and safe thanks to the 304 stainless steel leg frame.
See details
Son Ha solar water heater 300 liters Gold 58-300
Reserve
19,200,000 won
See highlights
- Safe, no electricity consumption thanks to solar heating.
- The capacity of 300 liters meets the needs of a family of 6-7 people.
- Polyurethane insulation for up to 72 hours of heat retention.
- Durable and leak-proof thanks to the insulated tank from SUS 304 stainless steel manufactured according to European technology.
- 28 5-layer vacuum tubes for fast and continuous hot water.
- The frame and shell are made of 304 stainless steel, providing a strong and solid effect.
See details
Above is an article about what a vacuum tube is and how it works for a solar water heater. Hope to provide you with useful and necessary information. If you have any questions, please leave a comment below the article!
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