солнечный водоподогреватель

Double wings type can save more space if your roof area is not enough with nice structure.Both of them special suitable for commercial big project, such as hotel, school, community, etc..Low pressure solar collectors are widly used in China for bug projects where automatic thermosyphon heat collection is prefferred water flows directly in the evacuated glass tubes connected to the mainfold.Features:1) Highest efficiency2) Thermosyphon heat collectables is one of the shining points3) Economic, it uses vacuum glass tubes to heat water4)Suitable for big projects where the lowest ambient temperature is no less than -3°5)Working pressure:less than 0.04MPa.