Many years ago, the Radiant Panel Association, predecessor of the Radiant Professionals Alliance (RPA), developed the first certification program for radiant installers and designers. I was one of the folks who took the time and sat for the very strenuous examination. If memory serves me correctly, I passed by the skin of my teeth. It was a fairly tough test and required a thorough knowledge of all aspects of radiant heating systems. The only real dilemma with the program was that it ...

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