Bill Spohn has designed, marketed and sold a wide array of test and measurement products in the last twenty-five years. He was design-engineering manager at Bacharach, Inc. for 10 years and HVAC Product Marketing Manager at Testo, Inc. for 10 years. Since 2009, he has managed and is now President, CEO and majority owner of www.TruTech Tools.com . He regularly presents technically complex topics to a wide range of audiences on the applications of testing and measurement instrumentation in building science, weatherization, and HVACR.

He has worked on BPI, RESNET, GAMA, AHRI, OMA, RSES, NATE, and ACCA Technical Committees, and holds three US patents in instrumentation design. He also consults in instrumentation design, development and application along with expert witness work on HVAC equipment, heat exchanger, carbon monoxide and related issues. He also runs a consulting business, William P. Spohn, LLC, which engages in HVACR Expert Witness work, technical education and e-commerce consulting. Bill’s BS & MS in Mechanical Engineering are from the University Of Rochester and he is a registered Professional Engineer in PA. Bill is also host of the Building HVAC Science Podcast, a member of the www.BlueCollarRoots.com network.