There are many solar collectors to compose one large project. This project could be used for Hotel, School, workshop, and other larger hot water needed places
Heliosray Bilateral Vacuum Tubes Solar Collector:
Separated Non-pressurized project solar collectors are mainly for large projects. This kind system uses city water pressure to circulate water through whole system. There should be one or some water tanks upper than solar collectors. Its work principle just likes Integrative Non-pressurized solar water heater.
As the water circulates in vacuum tubes, so this kind solar collector is not suitable for cold area. For cold area, we recommend Split Vacuum Tubes Heat Pipe Solar Collector (BYF58) to assemble large project.