Heating large swimming pools efficiently is a growing concern for commercial property owners. Rising energy costs and carbon regulations push many businesses to search for cleaner, more cost-effective solutions. Heat pipe solar water heaters offer a proven, energy-saving approach to maintaining ideal pool temperatures—especially in high-demand environments. Here’s how we helped Dawan Group solve their pool heating challenge—and how your facility can benefit too.
Heat pipe solar water heaters provide an efficient, eco-friendly way to maintain stable pool temperatures. By using vacuum tubes and sealed copper heat pipes, they convert solar energy into usable heat with minimal loss. Ideal for commercial pools, they can reduce electricity use by up to 70%, offering both cost savings and environmental benefits.
Let’s explore how our system helped the Dawan Group, and how similar solutions can apply to your pool heating challenges—whether for hotels, schools, or recreation centers.
In 2018, Dawan Group in Dong'an, Jiangxi Province, implemented a solar thermal project using heat pipe technology for their indoor swimming pool complex.
Project Location: Dong’an, Jiangxi, China
System Type: Heat pipe vacuum tube solar water heater
Capacity: 300 tons of hot water per day
Temperature Control: Maintained at 26–28°C
Annual Savings:
Electricity: ~700,000 kWh
Coal: 109 tons
This system effectively met year-round heating needs while drastically cutting energy costs. The installation offered both ecological and economic returns, making it a model example for energy-conscious enterprises.
A heat pipe solar water heater is a high-efficiency solar thermal system. Its core component—the heat pipe—is a sealed copper tube filled with a special fluid. Here's how it works:
Sunlight heats the vacuum tube surrounding the heat pipe.
The fluid inside vaporizes, rapidly transferring heat upward.
A heat exchanger carries this heat into the water storage tank or pool loop.
The fluid condenses and returns for reuse, ensuring a continuous heating cycle.
This design minimizes heat loss, making it ideal for swimming pools that require consistent temperatures.
Costs vary by region and project scale. On average, a commercial heat pipe solar pool heating system falls in the range of $2,000 to $6,000 for moderate-sized installations.
Return on Investment: Most commercial clients recover costs within 3–5 years through energy savings alone.
A properly sized and installed solar system can raise pool water temperature by 4–6°C, depending on sunlight exposure and system design. At Dawan Group, the system stabilized water at 26–28°C year-round.
| Feature | Heat Pipe Collector | Flat Plate Collector |
|---|---|---|
| Efficiency | High (esp. in cold/cloudy climates) | Moderate |
| Durability | Excellent | Prone to corrosion |
| Maintenance | Low | Medium |
| Temperature Tolerance | Up to 300°C | ~100°C |
| Freeze Protection | Built-in (sealed pipe) | Needs antifreeze |
Hotels: Guest water heating and spas
Schools: Dormitories and gymnasiums
Factories: Process water and sanitation
Bathhouses: High-volume, stable water heating
On average, switching to a solar pool heating system with heat pipes can reduce:
Electricity use by 60–70%
Carbon emissions by 40–60%
Coal or gas usage almost entirely
Dawan Group: ~700,000 kWh saved per year = equivalent to removing 120+ cars off the road annually.
DIY systems may work for home pools, but are not ideal for commercial applications. They lack scale, regulation, and long-term reliability.
System sizing based on usage
Panel orientation and site conditions
Thermal storage requirements
Professional installation and controls
Maintenance plans and support
“Since installing the heat pipe solar system, our pool operates more consistently and at much lower cost. It’s a long-term investment that paid off faster than we expected.”
“The system requires little maintenance. We've had it running for over five years with no major issues.”
Heat pipe solar water heaters offer a smart, long-term solution for pool heating—efficient, sustainable, and proven in real-world projects like Dawan Group’s. Reach out today to request a custom solution, technical consultation, or quote tailored to your site.Contact us export@soletksolar.com!
