Solar project for apartment:
Non-pressure solar collector:
1) Manifold: red copper
2) Frame: aluminum alloy, 20-56 degree
3) Vacuum tubes:ALN/AIN-SS/CUlayer, 58*1800mm or 47*1500mm
Non-pressure water tank
1) Outer tank: stainless steel
2) Inner tank: SUS304-2B stainless steel
3) Capacity: 1T-20T
Free design offered by ONTEK solar water heater company