Allison A. Bailes III, PhD Archives

Allison A. Bailes III, PhD

Company name: Energy Vanguard, LLC

Position: Founder and President

Dr. Allison Bailes is a building science expert who has spoken at many conferences, written several informative articles on The Energy Vanguard Blog, and published a book, A House Needs to Breathe… Or Does It? He has received a formal education in physics and has taught that subject at the high school and college levels. Nowadays, he applies that subject knowledge to his personal areas of interest: high-performance and green buildings.

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Traditional & Desiccant Dehumidification and When to Use Each (or Both)

This tech tip is based on a conversation with Nikki Krueger and David Schurk. Nikki is a longtime contributor to HVAC School and is a relatively frequent podcast guest and symposium speaker. David Schurk is the Director of Applied Engineering and National Sales Manager at Innovative Air Technologies. Nikki specializes in traditional cold-coil dehumidifiers, and […]

Switch Terms

A while back, I had a tech who was having some trouble finding a 35 PSI (2.41 bar) make-on-fall pressure switch. One adjustable switch in the catalog said (SPDT), but he didn't quite understand what that meant. In that case, it means single-pole, double-throw, and the “double-throw” part means that the switch has terminals in both the […]

Piston Design and Bypass

I remember it like it was yesterday. It was my first day of work as a trainee at my first technician job, just a wet-behind-the-ears kid fresh out of trade school. It was a Monday morning, and the technicians and I were standing in the dusty warehouse surrounded by stacks and stacks of brand new […]

A Layered Approach to IAQ

Is Undersizing Really a Problem?

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A Layered Approach to Indoor Air Quality

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Dr. Allison Bailes Discusses His New Book

Do Houses Need to Breathe? w/ Allison Bailes

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ERVs – What You Need To Know w/ Dr. Bailes

In this episode of the HVAC School podcast, host Bryan sits down with building science expert Allison Bailes to dive deep into the world of Energy Recovery Ventilators (ERVs). The conversation explores the critical role of ventilation in modern homes, highlighting how ERVs have become an essential component of maintaining indoor air quality and […]

Proper Design For Ductless and Ducted HVAC Systems

In this podcast episode, Bryan, Chad, John, and Allison discuss proper design for ductless and ducted HVAC systems, especially mini-splits. They also discuss potential future improvements to equipment and duct designs. Mini-splits are smaller than traditional HVAC units, so they make zoning a bit easier. However, load calculation plays a huge role in equipment selection […]

Friction Rate and Duct Design w/ Dr. Bailes (Podcast)

This episode is very exciting to me because we get to have Dr. Allison Bailes on the show. Today, he shares his knowledge about friction rate and duct design. Allison got his start teaching college-level physics before getting into the building design industry. If you have a forced-air system that blows heated or cooled air […]