1. Evacuated tubes convert solar radiation into heat that is Transferred to copper U pipes by an aluminum fin with high solar Energy absorption and low heat loss. Liquid (pure water Or glycol solution) in the U pipe heats up, and the U pipe conducts Thermal energy to the water inside the storage tank through internal Copper coils.
2. An electrical heater is used to heat water during cloudy days or at night.
3. As the water temperature can be adjusted using an automatic controller, hot water is available all day long.
4. With a testing pressure of 12 MPa, this system has a working pressure of 0.6 MPa.
5. Solar water heaters can still work even with several tubes broken.
6. Highly efficient insulation with integrated polyurethane foam.