Transpired solar collectors are not an invention - they are a "a law of nature"
The simplicity, elegance and scientific acknowledgements of the original transpired solar collector, Solarwall cannot be over-stated. The American Society of Mechanical Engineers authored a book and created a museum to substantiate this fact. In 2014 they titled a book,
"Engineering the Everyday and Extraordinary, Milestones in Innovation"
The engineers choose Solarwall (the original Transpired Solar Collector) as one of the most important inventions of the past 200 years.
Through independent third-party testing, Sunreps' Fabric Transpired Solar Collector has shown superior results in solar heating efficiencies for both the single and dual layer collectors.