pme columnist Dan Holohan, who is retiring from teaching after 46 years in the heating industry, recently published his 374-page memoir, “What Hydronics Taught Holohan.” In the book, Holohan shares entertaining stories and knowledge he gained throughout his career as a manufacturers rep, writer, teacher and founder of

Holohan weaves technical tidbits with real-life examples and simple truths. Topics in the book range from the first time Holohan saw square pipes to what he’s noticed most contractors have in common. Holohan’s daughter, Erin Haskell, calls the book a love letter to the heating industry. The book is available in paperback or on Kindle. For more information, visit