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Northeast HVAC News

Holohan’s Seminar Will Benefit Teachers.


Dan Holohan will present his Classic Hydronics seminar on May 20, 2015 at 2:00pm in Hershey, PA. Holohan and OESP will donate all proceeds from this seminar to a grant for industry teachers. This seminar will follow OESP’s Trade Show & Convention from May 17-21, 2015 at Hershey® Lodge.

Holohan will retire from teaching next year, so take this opportunity to attend his popular Classic Hydronics seminar and learn from one of the industry’s most informative and entertaining teachers. Sharpen your troubleshooting skills while supporting the future of industry education.

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“This all-technical seminar will give you a Liberal Arts education in Classic Hydronic systems,” says Holohan. “You will see inside the pipes and get a better understanding of how things work, what goes wrong, and why. I’ll share with you the secrets I’ve picked up from the Old Timers, making you a better troubleshooter.”

This class explores one-pipe loops, the critical importance of pressure differential, gravity hot-water heating, pumping, radiation, one- and two-pipe primary-secondary systems, two-pipe direct and reverse return, classic radiant, multiple boiler systems, diverter tees, two-temperature systems, air problems and their solutions, and more.

Visit to register. This seminar is $99 per person. Class size is limited and this one sells out quickly, so reserve your spot today. OESP looks forward to seeing you in Hershey® for this year’s Trade Show & Convention from May 17-21, 2015.




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