This is an excerpt of Dan Holohan’s Classic Hydronics seminar. Want to watch more? Visit https://heatinghelp.pivotshare.com In this all-technical three-hour-and-ten-minute seminar, Dan Holohan will give you a Liberal Arts education in those Classic Hydronics systems. He’ll have you seeing inside the pipes as he gives you a better understanding of how things work, what goes wrong with them, and why. He’ll share with you the secrets he’s picked up from the Old-Timers and he’ll make you a better troubleshooter. We’ll look closely at: • The critical importance of pressure differential • Gravity hot water heating • Pumping • Radiation • One-pipe loops • One-pipe primary-secondary systems • Diverter tees • Two-pipe direct- and reverse-return • Two-pipe primary-secondary • Multiple boiler systems • Two-temperature systems • Air problems and their solutions (once and for all) • Classic radiant • And more!