Session Number: PR-18

Residential Energy Efficiency:

Putting Theories into Practice - Part 2

Bill Spohn - Registered Professional Engineer (PA)

TruTech Tools, LTD, Wexford, PA

About this program:


As a follow up to his presentation at the 2019 event, Bill Spohn will give and update on the journey he and Marilyn are on in building, and now occupying, a new, high performance home.  

You will learn the paths they went down (and back!) before arriving at the design (and features) which are now enjoying as homeowners.

A mix of technical and consumer experiences will be shared.

Learning goals


1) How can you apply as many "cutting-edge" techniques and systems without overwhelming your builder


2) What kind of compromises must be made to integrate with available techniques and experience


3) Did the design meet the goals?


4) Lessons learned


About the Speaker: 

Bill Spohn is President and owner of, an award-winning reseller of tools and test instruments. 

He holds a BS & MS in Mechanical Engineering and is a Registered Professional Engineer (PE) in Pennsylvania. Over the last 30 years, Bill has built his career on creating, designing, and marketing a wide array of test and measurement products that work for technicians in the field. Bill is all about Science – Comfort, health and energy efficiency. He has worked on BPI, RESNET, GAMA, AHRI, OMA, RSES, NATE, and ACCA Technical Committees, and holds three US patents in instrumentation design. He regularly consults, teaches and writes on product applications in HVACR, building science, healthy homes, Indoor Air Quality, and weatherization. Bill is smart, a great listener and speaks with passion and in a language we can all understand. He shares his knowledge in the two podcasts: Building HVAC Science and RESTalk. He and his wife built a modular, high performance home near Pittsburgh, PA. Keep tabs on the details at

Program Level: Basic-Intermediate

Content Area(s): Energy Efficiency, Building Design & Construction (including Green)