If you have shopped for a new air conditioner or heat pump lately, you may have seen names like R-454B and R-32. These are the refrigerants used in most new home systems. If your current system uses R-410A, you might be wondering what this means for you.
Here is a plain explanation of what changed, why, and what it means for homes in Sapulpa, Tulsa and across Oklahoma.
What Refrigerant Does
Refrigerant is the fluid that carries heat in your air conditioner or heat pump. It soaks up heat inside your home and releases it outside. Your system holds a set amount, and it should not "use up" refrigerant. If it is low, there is a leak.
Why Refrigerants Are Changing
In 2020, Congress passed the American Innovation and Manufacturing (AIM) Act. It directs the EPA to phase down the production and import of hydrofluorocarbons, or HFCs, by 85 percent by 2036. HFCs are refrigerants with a high global warming potential (GWP) if they leak into the air.
R-410A, the standard refrigerant in home systems for many years, is an HFC with a high GWP. Under the EPA's Technology Transitions rule, new home and light commercial air conditioners and heat pumps manufactured or imported starting January 1, 2025 must use a refrigerant with a GWP below 700. R-454B and R-32 meet that limit, so manufacturers have switched to them.
What About Leftover R-410A Equipment?
The original rule set a deadline for installing R-410A systems that were built before 2025. In May 2026, the EPA finalized a rule that allows inventory of home and light commercial AC and heat pump equipment manufactured or imported before January 1, 2025, to continue to be installed.
In practice, you may still see some R-410A systems for sale while that older stock lasts. No new R-410A home systems are being made, so that supply will shrink over time. If you are offered one, ask how parts and future refrigerant costs may affect you over the life of the system.
If You Have an R-410A System Today
You do not have to replace a working R-410A system. The rules apply to new equipment, not systems already in your home. Your system can still be repaired and recharged.
What changes is the long-term picture. As the phasedown continues, less new R-410A is produced, and industry groups have warned that prices could rise. That matters most if your system has a leak.
- Small repair, healthy system: usually worth fixing.
- Major leak or failed compressor on an older system: compare the repair cost with a new system before deciding.
- Repeated leaks: fixing the leak itself, not just recharging, is the only real repair.
If your system is acting up, our AC repair visits start with a $95 diagnostic, and we'll tell you plainly whether repair or replacement makes more sense.
You Can't Mix Refrigerants
R-454B and R-32 are not "drop-in" replacements for R-410A. You should never put a different refrigerant into a system designed for R-410A.
This also affects partial replacements. A new R-454B or R-32 outdoor unit needs a matching indoor coil made for that refrigerant. In many cases, the line set between the units can be reused if it is the right size and in good shape. A technician should check it before deciding.
What's Different About R-454B and R-32?
Both new refrigerants are classified as A2L, which means they are mildly flammable. That sounds alarming, but these systems are designed for it. Many include built-in leak sensors and safety controls, and installers follow updated codes and handling steps.
For homeowners, the day-to-day experience is the same. The system cools and heats like any other. What matters is that it is installed by trained technicians who use the right tools and procedures.
What About R-22?
If your system is very old, it may use R-22. That refrigerant was phased out earlier, and new R-22 is no longer produced or imported in the U.S. Repairs that need a lot of refrigerant can be expensive. If you have an R-22 system with a major leak, it's usually time to look at HVAC replacement.
Planning Ahead in Oklahoma
Our summers are long and hot, and a breakdown in July is the worst time to make a big decision. If your R-410A or R-22 system is getting older, a few steps can help:
- Keep up with yearly maintenance so small leaks get caught early.
- Ask during your tune-up how your system is holding up.
- Get a free replacement estimate before you need one, so you can compare options without pressure.
Questions About Your System?
We work on R-410A, R-22 and newer A2L systems, and we install new high-efficiency equipment including inverter heat pumps. Book online or call (918) 370-1260, and we'll explain what applies to your equipment.
