solar collector

1.The solar collector including vacuume heat collecting and header,so it's of greatefficiency of heat collecting2.When it's working ,no water in the vacuume tube.It can work natual when one tubebroke3.The heat collector could be mounted on the balcony veranda.the southern wall .roof.or awanig.4.Vacuume tube:47mm*1500mm or 58*1800
solar collector