What Is the 2025 Refrigerant Change? The R-410A Phase-Out and What It Means for Homeowners

The HVAC industry is undergoing one of the biggest transitions in decades with its new refrigerant regulations. This is leading to updated HVAC systems and changes that reduce greenhouse gas emissions. For that, we need to move toward low GWP refrigerants.

Throughout this process, many homeowners are asking what the new rules mean for their current air conditioning system. It’s also normal to wonder why R-410A is being phased out and how new refrigerants like R-454B and R-32 will change repair costs. Let’s break down the purpose of the mandate. From there, we can help you review your options for system replacement, retrofitting, and repairs. Sometimes it’s worth making the switch to a newer model. Other times, waiting is the most cost-effective option for your home.

What Is the Government HVAC Refrigerant Mandate?

The 2025 mandate originates from the federal AIM Act. This legislation requires the HVAC industry to transition to low GWP (low global warming potential) refrigerants to reduce the environmental impact of cooling equipment. It’s primarily about the design of new HVAC systems and what refrigerants are allowed for manufacturing. The first step in the transition related to the types of HVAC equipment that HVAC manufacturers can legally produce, and it all started in 2025.

Why Is R-410A Being Phased Out?

R-410A is a reliable refrigerant, but it has a high global warming potential. This means it’s been contributing to climate change and increased greenhouse gas emissions. The good news is that R-410A does not harm the ozone layer. However, there are now better options. The R-410A GWP is significantly higher than the newer environmentally friendly refrigerants that are now on the market. That’s why regulators and manufacturers are moving toward R-454B and R-32—they’re considered low GWP refrigerants.

What's the Timeline for the R-410A Phase-Out?

Beginning in January 2025, manufacturers were no longer allowed to produce new systems using R-410A. That being said, R-410A will remain available for repairs, maintenance, and servicing for years to come. This is good news for homeowners who recently purchased their system. Most people won’t notice changes unless they purchase a new HVAC system after 2025.

What Kind of Refrigerant Will New HVAC Systems Need?

The two leading options for refrigerants moving forward in 2025 and beyond are R-454B and R-32. At Surplus City, we’ve designed a new line of heating and cooling equipment that utilizes R-454B. EnduroAir is an affordable solution that meets the new mandates.

What Refrigerant Will Replace R-410A in 2025?

R-454B offers dramatically lower global warming potential and is a primary choice for major HVAC brands. There’s also the option for R-32. Both offer solid energy efficiency and deliver a reduced environmental impact compared to R-410A.

Are New Refrigerants Backward Compatible with Older Systems?

New refrigerants such as R-454B and R-32 are not backward compatible with older R-410A equipment. You should only use what your system recommends. An existing system cannot simply be “topped off” or retrofitted to use a new refrigerant type. There are differences in pressures and the component design that make units unique for specific refrigerants.

How Does This Mandate Affect Homeowners?

Homeowners will see their options change in the market during 2025 and beyond. The goal is about having more environmentally friendly refrigerants, so the new systems available will no longer be using R-410A. The next wave of refrigerants will be even more energy efficient, so you might even see your energy bills go down when you make a system upgrade.

Can I Still Use My R-410A System After 2025?

Absolutely. Homeowners can continue operating their R-410A air conditioning system as normal for its full lifespan. The mandate only affects production of new HVAC systems. Homeowners don’t need to worry about removing or replacing existing equipment until it’s necessary.

Will R-410A Be Available for Repairs and Maintenance?

Yes. R-410A will still be stocked for years, though repair costs may gradually rise as supply decreases. Homeowners with newer R-410A units shouldn’t have to deal with any immediate issues obtaining refrigerant.

Can My Older HVAC System Be Retrofitted?

Switching an R-410A system to low GWP refrigerants requires full replacement of critical components. In general, this makes retrofitting impractical. It’s just not cost effective. If your system is experiencing issues or nearing the end of its lifespan, planning for system replacement is the way to go. You can get a new refrigerant unit like EnduroAir for a wise investment.

Will AC Units Cost More in 2026?

When you know where to shop you can save money. At Surplus City, we stock EnduroAir, which is an affordable solution for 2026 systems. Our prices have always been low because we source directly from the manufacturers. But now we’re bringing you even better value with our own solutions for heating and cooling.

Why Are New HVAC Systems More Expensive?

Newer refrigerants require redesigned compressors and safety components. Combined with updated refrigerant regulations and compliance testing the costs add up. Many new systems using R-454B or R-32 are likely to cost more than today’s R-410A systems. But this is always how the market goes. Fortunately, you can find cost effective units at Surplus City.

How Can You Save Money on HVAC Equipment Before 2026?

Homeowners can still purchase R-410A HVAC equipment before the deadline, often at lower prices. That’s where we come into play. Browsing your options with Surplus City is all about getting savings. We stock the leading brands at affordable prices because we buy in bulk and pass the savings on to you!

Benefits of Replacing Your HVAC System in 2025 and Beyond

Upgrading to a 2025-compliant system can offer long-term advantages, so it’s often worth the investment. You can get lower energy bills thanks to improved energy efficiency. Plus you get peace of mind knowing that you have reduced environmental impact with the low GWP refrigerants.

Whether you upgrade now or later, understanding the refrigerant transition ensures you're prepared for the future of HVAC systems. There’s an ongoing shift toward reduced emissions across all industries, and smarter cooling technology is just one way to make that happen.