What’s changing and why
The EPA is phasing down high-"global warming potential" (GWP) refrigerants. R-410A — the standard in AC systems for the last two decades — is being replaced in new equipment by lower-GWP refrigerants, primarily R-454B and R-32. This is a manufacturing change: as of 2025, new systems are built for the new refrigerants.
What it means for your current system
- If you have R-410A: Your system is fine. R-410A will remain available for servicing existing equipment for years, though prices may rise over time as supply tightens.
- If you have R-22 (pre-2010 systems): R-22 is no longer produced and is very expensive. A system still on R-22 is a strong candidate for replacement.
- If you’re replacing now: Your new system will use R-454B or R-32 — more efficient and far better for the environment.
You can’t mix refrigerants. The new refrigerants aren’t drop-in replacements for R-410A. When you replace a system, the whole matched set is designed for the new refrigerant.
Should you replace early to "get ahead" of it?
Not necessarily. If your R-410A system is healthy, keep it. The right time to replace is driven by your system’s age, efficiency, and repair history — not the refrigerant change alone. Where the change does tip the scales is on older R-22 units, or R-410A systems already needing a major repair: replacing now gets you a modern, efficient system and may unlock rebates and tax credits.
How this affects repair costs
For R-410A systems, expect refrigerant-related repairs to gradually cost a bit more as supply tightens — another reason to fix leaks properly rather than repeatedly topping off. We’ll always tell you honestly whether a repair or a replacement is the smarter spend for your specific unit.
Frequently Asked Questions
No. R-410A systems can still be serviced and recharged for years. The phase-out applies to new equipment manufacturing, not to existing systems in your home.
R-454B is a low-global-warming refrigerant now used in many new air conditioners and heat pumps, replacing R-410A in new equipment under EPA rules. R-32 is another common replacement.
R-22 is no longer produced and is expensive to source, so repairs that need refrigerant can be costly. If your R-22 system needs significant work, replacement is usually the better investment.
New equipment pricing has shifted modestly with the transition, but new systems are also more efficient and may qualify for rebates. For existing R-410A units, the main effect is gradually rising refrigerant prices over time.