1.Solar Water Heater Work Principle:

The key of compact heat pipe pressure solar water hater is heat pipe, The heat pipe is hollow with the space inside evacuated, much the same as the solar tube. In this case insulation is not the goal, but rather to alter the state of the liquid inside. Inside the heat pipe is a small quantity of purified water and some special additives. At sea level water boils at 100oC (212oF), but if you climb to the top of a mountain the boiling temperature will be less that 100oC (212oF). This is due to the difference in air pressure.

Based on this principle of water boiling at a lower temperature with decreased air pressure, by evacuating the heat pipe, we can achieve the same result. The heat pipes used in AP solar collectors have a boiling point of only 30oC (86oF). So when the heat pipe is heated above 30oC (86oF) the water vaporizes. This va pour rapidly rises to the top of the heat pipe transferring heat. As the heat is lost at the condenser (top), the va pour condenses to form a liquid (water) and returns to the bottom of the heat pipe to once again repeat the process.

The top of heat pipe is pluged into the water tank, so the cold water inside the tank can get heat from heat pipe, and become hot water. Because the water tank is close, so it can endure 0.6Mpa(6 bar), when the tap go into the water tank from the bottom inlet, the hot water is out from the top outlet, just like the electric water heater.

1, direct heating, high efficiency
2, pressurized hot water
3, Non-Freeze in winter
4, CE, SOLAR KEYMARK EN12976 certified
5, Factory audited by TUV&SGS.

2. Integrated Heat Pipe Solar Hot Water Heater System Features

1. Efficiency is 20% to 30% higher than flat plate solar water heater.

2. Quick start-up with heat pipe transferring heat energy unidirectionally to the storage tank.

3. Withstands pressure up to 8 bar, allowing direct connection to tap water.

4. Water-free vacuum tubes enable system operation even with multiple tube breakages.

5. Dense insulation using polyurethane foam ensures 72-hour heat preservation.

6. Simple structure for easy assembly and installation.

7. Suitable for year-round use in cold climates.

8. Compatible with auxiliary electric heaters.

9. Offers stable and reliable performance.

10. Environmentally friendly and energy-saving.

11. Pressurized hot water enhances bathing comfort.