Friday, July 13, 2007

Solar tubes - are they really that good?

Solar tubes, mostly imported from China look promising; but can anybody show evidence that these will last when subjected to years of NZ climatic conditions?

1 comment:

Anonymous said...

Original old style Tubes from 1984 at New South Wales University are still in perfect condition,

That's 24 years. The absorber can't corrode unless the tube is broken.