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Evacuated Tube Solar Geyser
Key Advantages:
1. Frost-Proof Technology: Operates flawlessly in -30°C conditions.
2. Low Maintenance & Durable: Borosilicate glass resists hail (25mm impact), stainless steel frame prevents corrosion.
3. 60-70% Lower Energy Bills: ROI in 3-5 years with decades of service life.
4. Simple Installation: Plug-and-play kit with pre-assembled components (tubes, tank, mounting).
5. Technical Features: Evacuated Tubes: Double-layer borosilicate glass, vacuum insulation.
Heat Pipe Solar Water Heater Kit | Frost-Resistant | High-Efficiency Vacuum Tube System
Product Introduction:
Harness free solar energy with our Heat Pipe Solar Water Heater – an advanced, all-climate solution for reliable hot water. Engineered with vacuum tube technology and copper heat pipes, this system delivers exceptional thermal efficiency (75%+), withstands extreme cold (-30°C), and drastically cuts energy costs. Ideal for homes, businesses, and off-grid installations.
Evacuated Tube Collector (ETC) acts as an absorber in the solar water heater. Each evacuated tube consists of two glass tubes having vacuum in between which is an excellent insulator. The incident solar radiation falling on the tube passes through the outer transparent tube and strikes the outer of inner tube. It absorbs heat energy and then passes to the cold water flowing in the tube. An evacuated tube technology based solar water heating system is most energy efficient and cost effective. Suitable for domestic use.
Polyurethane insulation water tank for hot water storage up to 72 hours. Stainless Steel inner tank for longer system life. Triple layer coated vacuum tubes for higher efficiency.
Working Principle of Heat Pipe Solar Water Heater:
1. Sunlight Capture: Evacuated glass tubes absorb solar radiation, converting it into heat.
2. Heat Transfer: Copper heat pipes (filled with volatile liquid) at the tube core vaporize instantly when heated.
3. Phase-Change Energy Movement: Vapor rises to the condenser bulb at the top, transferring heat to the water tank via a copper manifold.
4. Condensation & Recycling: Heat releases into water, causing vapor to condense back into liquid, flowing down the pipe to repeat the cycle.
5. Passive Circulation: No pumps needed – gravity and phase-change physics drive continuous operation.
Parameter table:
Model | Solar Vacuum Tube | Absorption Area(m²) | Ambient Temperature | Daily Efficiency | Insulation (mm) | Container Loading Sets | ||
Pty/pcs | Size/mm | 20GP | 40HQ | |||||
BTE5818-12 | 12 | 58*1800 | 1.49 | 0-60℃ | ≥55% | 50 | 61 | 148 |
BTE5818-16 | 16 | 58*1800 | 1.98 | 0-60℃ | ≥55% | 50 | 52 | 125 |
BTE5818-20 | 20 | 58*1800 | 2.48 | 0-60℃ | ≥55% | 50 | 37 | 91 |
BTE5818-25 | 25 | 58*1800 | 3.09 | 0-60℃ | ≥55% | 50 | 35 | 83 |
BTE5818-30 | 30 | 58*1800 | 3.71 | 0-60℃ | ≥55% | 50 | 25 | 62 |
Advantages:
1. Cheap and reliable solution, simple structures, easy installation.
2. High efficiency of heating, water heated by sun light directly.
3. Operated without any power supplying.
4. Water flow in the vacuum tubes and is operated when confined, to make sure water is sanitary. The insulating layer uses polyurethane bulk bubble, keep hot water 72 hours.
5. Inner tank adopts SUS304 & SUS316 food grade stainless steel, and use seamless welding technology to ensure clean water.
6. Flexible installation methods can be installed on the flat or inclined roof, water heater can be integrated well with different buildings.
