25 Engineering Header Collectors
· Premium all-glass vacuum tubes—optimized for year-round solar gain
· Long-lasting insulation using German eco-friendly PU foaming
· Designed for harsh environments with minimal maintenance needs
Join the new generation of solar heating and maximize your ROI with dependable engineering.
Introducing our Direct-Insertion Manifold Solar Collector, purpose-built for high-demand heating applications in commercial, agricultural, and industrial sectors. Whether you're running a hotel, factory, or greenhouse, this collector delivers powerful thermal output with simplicity and reliability.
By using a direct single-circuit structure, it efficiently heats and transports water to large tanks, removing the need for complex system controls—saving you both time and money.
Perfect for:
· Hotels, resorts, and schools
· Poultry and livestock farms
· Swimming centers and bathhouses
· Urban solar heating grids
· Office buildings and factory heating
What Makes It Different?
At the heart of the system is our proprietary UHS technology. We’ve redefined solar durability with:
· Seamless double-sided argon arc welding on the inner tank
· Weld-free sealing on both ends to eliminate leak risks
· 15-year weld durability withstanding 1.0 MPa—tested beyond expectations
Built to Perform:
· Premium all-glass vacuum tubes—optimized for year-round solar gain
· Long-lasting insulation using German eco-friendly PU foaming
· Designed for harsh environments with minimal maintenance needs
Join the new generation of solar heating and maximize your ROI with dependable engineering.
Product Parameter:
Type of collector | CTC390 | CTC500 | CTC780 | CTC1490 | |
outline dimension (mm) | 2180×1990×180 | 2580×1990×180 | 3760×2180×180 | 3760×4065×180 | |
Vacuum tube specifications | φ58×1800 | φ58×1800 | φ58×1800 | φ58×1800 | |
Number of vacuum tubes | 25 | 30 | 50 | 100 | |
Contour area (m2) | 3.91 | 5 | 7.81 | 14.91 | |
Lighting area (m2) | 2.47 | 2.96 | 4.93 | 9.86 | |
net weight (kg) | 67 | 81 | 123 | 230 | |
Working pressure (MPa) | ≤0.06MPa | ||||
Interface size | DN25 or DN50 external thread | ||||
Number of interfaces | Two | Three | |||
End cap of inner tank | UHS solder-free structure sealing process | ||||
Total heat loss coefficient | 2.4W/(m2·K) | ||||
Maximum operating temperature (℃) | 100 | 100 | 100 | 100 | |
Peak efficiency | 0.7 | 0.7 | 0.69 | 0.69 | |
rated efficiency ① | 0.59 | 0.59 | 0.57 | 0.57 | |
specified power (kW)② | 400W/m² | 0.4 | 0.5 | 0.8 | 1.5 |
700W/m² | 0.9 | 1.1 | 1.8 | 3.4 | |
1000W/m² | 1.4 | 1.7 | 2.8 | 5.3 | |
1. How does a vacuum tube solar water heater work?
A vacuum tube solar water heater uses solar energy to heat water through evacuated glass tubes. Each tube consists of two concentric glass layers with a vacuum in between to minimize heat loss. Sunlight is absorbed by the inner layer and converted into heat, which is transferred to the water inside the tank via a heat pipe or direct circulation, depending on the system type.
2. What applications are vacuum tube solar water heaters suitable for?
Vacuum tube solar water heaters are ideal for both residential and commercial use, including homes, hotels, schools, hospitals, and industrial facilities. They are especially effective in areas with moderate to cold climates. The systems can be used for domestic hot water, pre-heating for boilers, and even floor or space heating when combined with compatible systems.
3. Can a vacuum tube solar water heater work during winter or cloudy days?
Yes. Vacuum tubes retain heat exceptionally well, allowing the system to continue heating water even in low-temperature or overcast conditions. However, performance may be slightly reduced, so a backup electric or gas heater is recommended for consistent hot water supply during prolonged bad weather.
4. How long is the lifespan of a vacuum tube solar water heater?
With proper installation and maintenance, a vacuum tube solar water heater can last 15–20 years or more. The glass vacuum tubes are durable and resistant to corrosion, and the tank is usually made of stainless steel or enamel-coated steel for longevity.
5. Is installation difficult? Can the system be installed on any roof?
Installation is straightforward and can be completed in a few hours by a qualified technician. Most vacuum tube solar water heaters are designed for pitched roofs, but flat-roof mounting brackets are also available. It's important to ensure the roof can support the system’s weight and gets sufficient sunlight.



