How long is the service life of the vacuum tube solar?
Upper and lower water pipeline: generally use a little better, because the water is hot, life and quality has a great relationship, similar to the home of the water pipe, but to be short, because it is hot water.Between the above, the vacuum tube, the upper and lower water pipe is easy to change.In addition, do need to see what the quality of the manufacturers
The water tank liner at this stage: regular yard is used in 304 stainless steel, 15 years of life, with 201 other basic, 5-7. This is the general water quality area.Vacuum tube: formal manufacturers of vacuum tubes I heard of the use of 25 years, as long as the vacuum is better, no problem.
Generally, the life of the solar energy is mainly decided by the bracket, the water tank, the vacuum pipe and the upper and the lower water pipes.Bracket: aluminum alloy stent 10-15 years, galvanized plate bracket 7-10 years, which is a normal area, coastal areas to reduce.
