PM Live

January 31, 2017

Las Vegas, NV

About the Instructors:

siegenthaler bigJohn Siegenthaler
Appropriate Designs

John Siegenthaler, P.E., is Principal of Appropriate Designs, a consulting engineering firm in Holland Patent, N.Y. He is a mechanical engineering graduate of Rensellaer Polytechnic Institute and a licensed professional engineer. He has over 35 years of experience in designing modern hydronic heating and cooling systems. John is an Associate Professor Emeritus of Engineering Technology at Mohawk Valley Community College in Utica, NY. He is the author of the texts Modern Hydronic Heating, and Heating with Renewable Energy. John serves as the hydronics editor for BNP Media, and a columnist for PM, where he presents the monthly “Hydronics Workshop” column and the "The Glitch & The Fix" column, which offers hydronic troubleshooting challenges and solutions.
wohlfarth bigRay Wohlfarth
Fire & Ice Heating & Cooling

Ray Wohlfarth is the proud parent of four children and president of Fire & Ice Heating & Cooling in Pittsburgh, PA. He is the author of five technical books on boilers and one children’s book. He is a columnist for Plumbing & Mechanical, PM Engineer, and Engineered Systems magazines. He is past president of Pittsburgh ASHRAE and currently serves on the Board of Governors for WV ASHRAE. He is the secretary of WV APPA and a member of Radiant Professionals Alliance. Ray taught classes for RSES, Green Building Alliance, OESP, Steamfitters Local Union, WV APPA, and ASHRAE

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