Comparison of Performance of Solar Water Heating Systems
A study was conducted comparing performance of 3 systems of 250 lpd/60 deg. C. installed by 3 different manufacturers.
Performance of the three systems under identical conditions (these were installed in the same location) showed a large variation. System design and installation played a major role in the performance. AVIN solar system turned in a superior performance.
Reproduced here below is the text of the report.