Free Hydronic Design Video From John Siegenthaler Brian Hayden This ten minute video is all about fittings. Fittings can be an afterthought, but they are a critical component for designing a high-performing hydronic heating system. In this video, John Siegenthaler outlines the universe of fittings, and even tells you which fittings you should avoid when designing a hydronic system. This video comes from John’s ‘Hydronics Master Class’ – an advanced training for hydronic system designers. Click here to learn more about the Hydronics Master Class. Building Science Hydronic Heating Originally posted on October 14, 2013 Written by Brian Hayden HeatSpring co-founder. You can reach me directly at bhayden @ heatspring.com or 800-393-2044 x1. More posts by Brian