In 2020, the Environmental Protection Agency (EPA) passed the American Innovation and Manufacturing Act of 2020 (AIM) to reduce hydrofluorocarbons (HFCs), potent greenhouse gasses traditionally used in HVAC systems. Under AIM, the EPA set a phasedown schedule that called for a 60% reduction in HFCs by 2024 and an 85% reduction by 2036.
What the AIM Act Means for the HVAC Industry
The HVAC industry must begin transitioning to new refrigerants. The EPA set deadlines for new equipment, mandating that residential and light commercial air conditioners and heat pumps manufactured after January 1, 2025, must use new A2L refrigerants like R32 and R454B. Equipment made before this date has until January 1, 2026, for installation. Existing equipment can continue to be used and serviced with current refrigerants like R-410A, which will remain available, though production will gradually decline.
The shift to A2L refrigerants is driven by their low global warming potential (GWP) and enhanced system efficiency. With higher operating pressures and superior thermal properties compared to older refrigerants, A2Ls enable more efficient heat transfer. As a result, your HVAC system can cool your home more effectively while using less energy, reducing both energy consumption and operating costs over time.
Though A2L refrigerants are lower in HFCs, they pose a slight risk of flammability. To mitigate this risk, all new HVAC units will come equipped with sensors to immediately report any leaking of gas. Retrofitting existing systems is not permitted as it would violate EPA regulations.
What the AIM Act Means for Homeowners
As the HVAC industry transitions to new refrigerants, homeowners should prepare for changes that will affect their systems, costs, and service timelines. The shift to eco-friendly refrigerants is more than a simple swap—it triggers a chain of adjustments. Here’s what you need to know and how you can prepare.
Consider upgrading early: If your HVAC system is nearing the end of its life, it might be wise to consider investing in a new A2L energy efficient system. For R410A systems, schedule a tune up now, while R410A parts and refrigerants are still readily available. This could save you from higher costs and potential shortages in the future.
Secure a service agreement: Regular maintenance can extend the life of your current system, helping you delay a full upgrade. Service agreements ensure your HVAC system runs efficiently, catching issues early and avoiding costly emergency repairs under the new standards.
Stay informed: Education is your best defense. By keeping up with the evolving HVAC landscape and AIM Act regulations, you can make informed decisions for your home and budget. Our team offers personalized advice and our technicians have been A2L certified, so we can help you navigate these changes smoothly.
Looking Ahead
The AIM Act represents a significant step toward reducing the environmental impact of HVAC systems, but the transition may create challenges for homeowners. New refrigerants and systems bring increased costs, potential supply chain delays, and more expensive maintenance for older systems. However, by staying proactive, informed, and working with our certified professionals, you can manage these changes effectively.
At Jay’s Heating and Cooling, we’re fully equipped to guide you through this transition. Each one of our HVAC technicians are certified in handling the new refrigerants, ensuring your home stays comfortable, safe, and compliant with the latest regulations. Contact us today to discuss how we can help you navigate this evolving landscape and future-proof your home. Taking steps now can save you money and stress down the road.
Glossary
AIM: American Innovation and Manufacturing Act of 2020
EPA: Environmental Protection Agency
HFCs: hydrofluorocarbons (potent greenhouse gasses)
Supplemental Articles
https://www.nahb.org/blog/2024/05/new-refrigerants-hvac
https://hvac-blog.acca.org/the-history-of-refrigerants-and-a-glimpse-at-their-future
https://www.epa.gov/climate-hfcs-reduction/frequent-questions-phasedown-hydrofluorocarbons