#a2l

If you own your HVAC company or are involved in management, you may have realized that our industry is currently facing a shortage of new A2L refrigerants, particularly R-454B and R-32.  Our own company has faced limited availability and long lead times, mainly due to supply chain disruptions and the increased demand now that our […]

This tech tip was written by Dr. Chuck Allgood from Chemours. Thanks, Dr. Chuck! As the ramp-up of new AC units and heat pumps with low-GWP refrigerant R-454B accelerates, it may be useful to look at some of the basic properties of R-454B refrigerant as compared to the legacy gas it’s replacing: R-410A. This tech tip […]

This tech tip was written by Dr. Chuck Allgood with Chemours. Thanks, Dr. Chuck! While the ever-evolving world of refrigerants can often seem overwhelming with what seems like a never-ending parade of new gases being developed, taking a simplified approach may help clear the clutter. It can be as easy as A, B, C—that is, […]

This tech tip was written by Don Gillis with Chemours. Thanks, Don! You’ve probably heard it way too many times now: A2Ls are coming.  While we’ve heard a lot about what “A2L” really means and the R-410A phasedown timeline, there isn’t a lot of public information about what to expect on the service side. I’ve […]

This tech tip is an overview of the livestream by the same name, featuring HVAC School contributors Matt Bruner, Roman Baugh, and Adam Mufich, as well as special guests Don Gillis, Dr. Chuck Allgood, and Jason Obrzut. You can watch the full livestream HERE. These gents also gave the “Flammable Refrigerant Update” at the 2023 […]

This article was written by Don Gillis with Chemours. Thanks, Don! With the American Innovation Act (The AIM Act) in place and the reduction of the supply of hydrofluorocarbons (HFCs) in effect, the need to retrofit systems with lower global warming potential (GWP) refrigerants will become commonplace in the very near future. So, what does […]

This article about A2L refrigerants was written by Don Gillis with Chemours. Thanks, Don! HVACR service technicians find themselves at the forefront of the refrigerant transition in AC and commercial refrigeration. As hydrofluorocarbon (HFC) refrigerants with high-global warming potential (GWP) are being phased down, mildly flammable A2L refrigerants have been identified as potential lower-GWP alternatives.  […]

 In this engaging episode of the HVAC School Podcast, host Bryan sits down with Jesse from NAVAC to dive deep into the evolving landscape of refrigeration technology, focusing primarily on the transition to A2L refrigerants. The conversation offers a refreshingly pragmatic approach to addressing industry concerns about these new, mildly flammable refrigerants, dispelling myths […]

 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 […]

 In this podcast, Bryan and Clifton discuss the upcoming transition to A2L refrigerants, like R-32 and R-454B, and what A2L mitigation is going to look like. These mildly flammable refrigerants will be used in place of R-410A for residential air conditioning systems due to an HFC phase-down driven by legislation and international agreements. They […]

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