Dr. Chuck Allgood Archives

Dr. Chuck Allgood

Company name: The Chemours Company

Position: Technical Fellow

Dr. Chuck Allgood is a chemist of over 30 years who works with the Chemours Company as a technical fellow and technology leader. He focuses on the development of low-GWP refrigerants and educates industry professionals about A2L refrigerants and the changing regulatory landscape. He films short informational videos on his “Checkup with Dr. Chuck” series on YouTube and the HVACR Learning Network.

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The “Bad” Contactor That Wasn’t

I wanted to share a recent “rediscovery” with you out of pure humility. I call it a rediscovery because it’s a basic fundamental I already knew, but it just hadn't come up recently enough to be top of mind until the other day. I found myself troubleshooting a single-pole Mars 91311 contactor. I had voltage […]

How Private Equity Has Been Shaping the Industry (and How to Navigate It)

My family tries to live as holistically as possible. We make a lot of our own food and stay away from things that are heavily processed and have a lot of additives, preservatives, and common allergens. That means we like to buy snacks from independent brands that are transparent about their recipes, and one of […]

So You Want to Be a Space HVAC Tech

“It sounds very fancy, but it's really the HVAC of the spacecraft — controlling humidity, temperature and the whole atmosphere onboard.” — Manuel Retana, NASA Project Manager, ECLSS Artemis II | University of Nevada, Reno, April 2026 A NASA engineer who spent five years building the life support system on the Artemis II spacecraft name-dropped […]

Flammable Refrigerant Update

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ABC’s of New A2Ls w/ Opteon

Flammable Refrigerant Update

Refrigerants of the Past & Future with Dr. Chuck & Brandon Marshall LIVE

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A2L Update With Chemours Live from AHR

Don Gillis and Dr. Chuck Allgood from Chemours join the show to discuss their new easy as “1,2,3” branding around the A2L refrigerants R454A, R454B, and R454C. They explain that A2Ls are not actually flammable like hydrocarbons; they are just mildly combustible with much lower burning velocity and energy than propane or butane. The […]