Goodbye R-410A: The Transition to New Refrigerants in 2025

The HVAC industry is preparing for a major shift. Starting in 2025, the commonly used refrigerant R-410A will no longer be the go-to choice for heating and cooling systems. This change isn’t just about upgrading technology; it’s part of a larger global effort to reduce environmental impact. The phase-out of R-410A marks the beginning of a new era with refrigerants like R-454B and R-32 taking center stage.

If you’re a homeowner or business owner wondering what this means for you, Adams Heating & Cooling explains it all, covering why this transition is happening, what it means for your HVAC system, and how to prepare for this refrigerant change.

Why Is R-410A Being Phased Out?

R-410A has been a popular refrigerant in products ranging from residential air conditioners to commercial refrigeration units for many years, since the ban of R-22 and other refrigerants classed as ozone-depleting substances with the potential to cause damage to the ozone layer. But it has one significant downside: its global warming potential (GWP). GWP measures how much heat a greenhouse gas traps in the atmosphere. R-410A’s GWP is relatively high at 2088, making it a target in the global push to combat climate change.

Governments worldwide, including the United States, have committed to reducing the production and use of high-GWP refrigerants. The phase-out is a necessary step toward cleaner, greener cooling technologies.

Starting in 2025, R-410A refrigerant will no longer be used in newly manufactured HVAC systems, including air conditioning units and heat pumps. Production of R-410A for recharging existing systems will also decrease over time.

Meet the New Refrigerants: R-454B and R-32

With R-410A on its way out, newer refrigerants like R-454B and R-32 are stepping in to fill the gap. These refrigerants are more environmentally friendly, with zero ozone depletion potential and a much lower global warming potential, while still providing efficient cooling performance in air conditioners and heat pump systems.

R-454B

R-454B is a next-generation refrigerant designed to replace R-410A in HVAC systems. R-454B is a hydrofluoroolefin (HFO) blend refrigerant, composed of a mixture of R-32 (difluoromethane) and R-1234yf (2,3,3,3-tetrafluoropropene). This blend is designed to deliver efficient cooling while significantly reducing environmental impact.

R-454B has a significantly lower global warming potential of approximately 466, making it a more environmentally friendly option.  It belongs to the A2L safety classification, meaning it is mildly flammable but safer to handle than highly flammable refrigerants. R-454B provides a balanced approach to performance and sustainability, maintaining the cooling capacity and energy efficiency of traditional refrigerants like R-410A while cutting its GWP by nearly 80%. 

Many HVAC manufacturers are choosing to use R-454B in new residential systems due to these properties. Carrier, a longstanding leader in the heating and cooling industry, has committed to advancing environmentally friendly HVAC solutions by transitioning to the use of R-454B refrigerant. Also known as Puron Advance, R-454B is a more sustainable refrigerant alternative, and this switch aligns with global efforts to minimize the environmental impact of HVAC systems.

R-32

R-32, or difluoromethane, is a single-component hydrofluorocarbon (HFC) refrigerant that has gained popularity as an eco-friendly alternative in HVAC systems. Known for its high energy efficiency and excellent cooling performance, R-32 is used in residential and commercial air conditioning systems. 

One of its standout features is its relatively low global warming potential (GWP) of about 675, which is significantly lower than traditional refrigerants like R-410A. R-32 is also an A2L refrigerant, meaning it is mildly flammable and requires professional handling to ensure safety during installation and maintenance. Its simpler chemical composition compared to liquid refrigerant blends makes it easier to recycle and recharge. 

Both options are environmentally friendly alternatives that represent a step forward in reducing environmental impact while maintaining reliable cooling for your home or business.

What Does This Mean for Your HVAC System?

If you have an HVAC system that uses R-410A, don’t panic—your system isn’t becoming obsolete overnight. Here’s what you need to know:

Existing Systems

• You can still use your R-410A system after 2025. However, as the production of R-410A decreases, the cost of servicing and recharging systems with this refrigerant is likely to rise.
• Repairs involving refrigerant leaks could become more expensive due to the limited availability of R-410A.
• Retrofitting older systems to accommodate new refrigerants may be an option, but it’s not always cost-effective.

New Installations

• Starting in 2025, most new HVAC systems will be designed to use R-454B or R-32; however, systems using R-410A may still be available for installation, if they were manufactured prior to January 1, 2025. 
• If you’re planning to replace your system soon, it’s worth considering one of these updated models. Even though R-410A systems may be available to install within the next year, the refrigerant supply will continue to decrease, which could increase the cost of recharging the unit in the future.
• New systems are engineered to optimize performance with the new refrigerants, meaning you’ll benefit from better efficiency and potentially lower energy bills.

How to Prepare for the Refrigerant Transition

The upcoming phase-out of R-410A refrigerant doesn’t mean you need to make drastic changes immediately, but it’s wise to plan ahead. Here’s how:

1. Schedule a System Checkup

Regular maintenance is necessary to keep your current HVAC system running efficiently. During your next service appointment, ask your technician to check for refrigerant leaks and discuss your options for the future.

2. Budget for Potential Upgrades

If your HVAC system is nearing the end of its lifespan, consider upgrading to a new system designed for R-454B or R-32. While the initial cost may be higher, the long-term savings in energy efficiency and lower refrigerant costs can make it worthwhile.

3. Educate Yourself

Understanding the new refrigerants can help you make informed decisions. Adams Heating & Cooling installs new Carrier HVAC systems that use R-454B refrigerant, and our experienced team is here to guide you through the process, from selecting the right Carrier system for your home to understanding how this new refrigerant improves efficiency and sustainability. 

4. Work With a Professional

Handling refrigerants isn’t a DIY job. Always rely on licensed HVAC technicians who are trained to work with the new mildly flammable refrigerants safely and effectively.

Adams Heating & Cooling Keeps You Informed

The phase-out of R-410A refrigerant marks a turning point in the HVAC industry, with a clear focus on sustainability and efficiency. While this transition may seem confusing, it also presents an opportunity to invest in better technology and a greener future.

Adams Heating & Cooling understands that change can feel overwhelming, especially when it comes to your home’s comfort system. We’re here to guide you every step of the way. Our team stays up-to-date on HVAC industry changes, including the transition to R-454B and R-32, so we can provide you with the best advice and service.

Whether you need help maintaining your current system, are considering a new installation, or simply have questions about the refrigerant transition, we’re here to help. Give us a call and let us take the stress out of HVAC changes so you can focus on enjoying a comfortable, energy-efficient home.