Refrigerant Guide
R-454B vs R-410A vs R-32: The 2026 Transition
EPA banned new R-410A residential AC systems January 2025. All new installs now use R-454B (most brands) or R-32 (some premium brands). Here’s what Tampa homeowners need to know.
Quick Verdict
If your AC was installed before January 2025: it’s R-410A and you’re fine. Can continue repair/recharge indefinitely (supply will be available 10-15+ years). If you’re replacing now: new system will be R-454B (Goodman, Daikin mostly) or R-32 (some Daikin premium). R-454B is the industry standard going forward. Don’t panic — this is a smooth transition, not a crisis. Call (813) 343-2212.
Refrigerant Comparison
| Factor | R-410A | R-454B | R-32 |
|---|---|---|---|
| EPA Status (Residential) | Banned Jan 2025 for new systems | Current standard | Current standard |
| Global Warming Potential (GWP) | 2,088 | 466 | 675 |
| Flammability Class | A1 (non-flammable) | A2L (mildly flammable) | A2L (mildly flammable) |
| Tampa price per pound (2026) | $95/lb | OEM-only (factory charged) | OEM-only (factory charged) |
| Your existing AC uses | Yes (pre-2025) | Possible (late 2024+) | Possible (Daikin) |
| New install uses (2025+) | No | Yes (most brands) | Yes (Daikin premium) |
| Tech certification required | EPA 608 | EPA 608 + A2L training | EPA 608 + A2L training |
| Supply availability long-term | Declining 10-15 years | Long-term | Long-term |
| Can mix with old R-410A system? | Yes (same gas) | No (different specs) | No (different specs) |
Florida-Specific Considerations
What Tampa homeowners should actually do:
- If your AC is < 12 years old (R-410A): Continue running it normally. R-410A supply will be available for 10-15+ years for repairs/recharges.
- If your AC is 12+ years old and failing: Replace with R-454B system. This is what you’d do anyway; just know the refrigerant changed.
- If you’re installing new AC now: You’re getting R-454B (or R-32 if Daikin premium). Nothing you need to do differently.
- Repair considerations: R-410A refrigerant costs $95/lb in 2026 and rising (supply tightening). Future recharges on old systems will get expensive — factor into repair-vs-replace decisions.
- A2L safety: R-454B and R-32 are classified A2L (mildly flammable). In real residential use, risk is extremely low. Systems are engineered with leak detection. One year post-transition: zero safety incidents in our Tampa installs.
What We Recommend (and Why)
Don’t panic about the refrigerant transition. It’s smoother than industry scare stories suggest. Here’s our straight advice:
- Keep your working R-410A system. Don’t replace just because of the refrigerant change. If it’s running well, let it run.
- When you do replace, you’ll get R-454B. It’s not dramatically different — same cooling performance, same home experience. Just more environmentally friendly.
- Ask about A2L-certified technicians. Any installer offering you a new system should have techs certified for R-454B handling. This is a differentiator — ALL Home Therapist techs are A2L certified.
- Get leak detection upgrades. A2L refrigerants need dedicated leak detection. Modern R-454B systems come with this built in; older R-410A systems often lack it.
- Cost impact: New R-454B installs are running about 5-10% higher than equivalent R-410A systems were in 2024. This is temporary — prices will normalize by 2027.
FAQ
Is R-410A actually banned?
Banned for NEW residential AC manufacture as of January 2025. Existing systems, servicing, and refrigerant supply for recharges are all legal. No one will come take your AC away.
Will R-410A become unavailable?
Supply is decreasing gradually. Estimates: 10-15 years before it becomes very scarce. Price will rise each year (already $95/lb vs $60/lb in 2023).
Is R-454B dangerous?
A2L classification means mildly flammable, but residential use is very safe — systems are engineered for leak detection and airflow to prevent ignition. No incidents in our hundreds of Tampa installs.
Can I convert my R-410A system to R-454B?
No — different specs, different oil, different pressures. Mixing or converting is illegal and unsafe. When you’re ready to switch, it’s a full system replacement.
Why did they phase it out?
EPA AIM Act (Kigali Amendment compliance). R-410A has GWP 2,088 vs R-454B at 466. 78% lower climate impact per pound.
Will R-454B be phased out too?
Possibly in 15-20 years. Each refrigerant cycle gets greener. R-454B is projected to be the standard through at least 2040-2045.
Should I rush to replace my AC?
No. Keep using your R-410A system until it’s near end-of-life (12+ years). Then replace with R-454B. Don’t waste a working AC over refrigerant change.
Refrigerant Questions? Free Consultation.
No pressure, just honest advice. (813) 343-2212.