Title tag: R-32 Refrigerant and 2026 HVAC Rules for Property Managers | Lula Property Maintenance
Meta description: What R-32 refrigerant and the EPA’s HVAC rules mean for rental portfolios: R-32 vs. R-410A, repair or replace, costs, and Pro certification, from Lula property maintenance.

R-32 Refrigerant and the 2026 HVAC Rules: A Guide for Property Managers

New HVAC rules are now in effect, and they’re already affecting property managers and the owners they manage for. The EPA set these rules to phase out high-GWP refrigerants. For rental portfolios, that means replacement systems built from new components run on R-32 refrigerant or an R-32 blend instead of R-410A.

This guide from Lula property maintenance explains what’s changed since January 2025 and where the rules stand after the EPA’s May 2026 update. It also covers what property managers need to do right now to keep investors’ properties valuable and residents happy.

What Are the 2026 HVAC Refrigerant Rules?

The EPA’s Technology Transitions Program, under the American Innovation and Manufacturing (AIM) Act, limits the use of hydrofluorocarbons (HFCs) with a Global Warming Potential (GWP) above 700. R-410A, the refrigerant in many existing residential split systems, has a GWP of 2,090, according to the EPA’s SNAP program.

The rules work on two separate timelines. Conflating them causes real planning mistakes.

January 1, 2025: Manufacturing and Import Ban

New residential and light commercial AC and heat pump products manufactured or imported on or after January 1, 2025 must use refrigerants with GWP below 700. The same limit applies to specified system components manufactured or imported on or after that date.

Installation Limits (Updated May 2026)

New residential and light commercial split systems, including mini-splits and unitary systems, built from components manufactured or imported on or after January 1, 2025 must meet the 700 GWP limit. The EPA issued a final rule on May 26, 2026, as noted in the EPA’s Technology Transitions fact sheet. Under that rule, systems built entirely from pre-2025 R-410A inventory have no installation compliance date, according to the EPA’s sector page.

January 1, 2027: Variable Refrigerant Flow (VRF) Systems

Multi-zone VRF systems, common in larger properties, have their own separate installation deadline. If your portfolio includes VRF systems, confirm the applicable timeline with your HVAC Pro.

Source: EPA Technology Transitions HFC Restrictions by Sector, last updated August 28, 2026. For compliance purposes, refer to 40 CFR Part 84, Subpart B.

How It Affects Current HVAC Systems

• Repairs Still Allowed: You can still service and repair older R-410A systems.
• Supply Planning: The HFC phasedown limits R-410A production, so plan repairs and replacements around supply.

Why Property Managers Should Care

System failures during peak cooling or heating season create real risk for residents. Property managers who plan upgrades proactively, rather than responding to breakdowns, protect investors from emergency replacements and resident issues. Our guide to HVAC preventative maintenance for rentals covers the routine work that supports that planning.

R-32 vs. R-410A vs. R-454B: What Changes for Your Units

A replacement system built from post-2024 components will run on an A2L refrigerant, typically R-32 or R-454B, instead of R-410A. Both sit under the 700 GWP limit. GWP and safety class figures below come from the EPA’s SNAP program.

Refrigerant	GWP	Safety class	Status
R-410A	2,090	A1	No new installs on post-2024 components
R-32	675	A2L	Single-component refrigerant (difluoromethane)
R-454B	470	A2L	Blend that’s 68.9% R-32

The EPA, in a November 2025 proposed rule in the Federal Register, identifies R-32 as difluoromethane and R-454B as 68.9 percent R-32 and 31.1 percent HFO-1234yf. That makes R-32 either the refrigerant itself or the main component of R-454B, the two most common A2L choices.

Can an R-410A System Be Converted to R-32?

No. The EPA, in a November 2025 proposed rule in the Federal Register, restates the existing retrofit prohibition: “None of these substitutes may be used as a conversion or ‘retrofit’ refrigerant for existing equipment.”

A2L equipment is not compatible with existing R-410A systems. If a component fails and you move to A2L equipment, the full system must be replaced.

How the Rules Affect Real Estate Investors

Higher Costs

New A2L systems, whether R-32 or R-454B, come with added safety requirements. The EPA’s November 2025 proposed rule notes these can include refrigerant leak detection, depending on charge size and room size.

Lennox reported in its 2025 full-year results $356 million of mix/price benefits, driven primarily by new product mix. That figure is Lennox’s reported profit driver. It signals that new-product pricing carries more weight, though it doesn’t measure a price increase to buyers.

Rebuild CapEx estimates on current quotes.

Planning for Expenses

Investors with older HVAC systems have two options:

• Keep Repairing: Continue servicing R-410A systems, planning around R-410A supply as production phases down.
• Replace: Invest in new A2L-compliant systems that can be serviced going forward.

Replacing first where a failure would cost the most, spread over several years, reduces the budget impact and avoids reactive replacements during peak season.

Property Value and Appeal

• Older Systems: Properties with aging R-410A systems depend on a refrigerant whose production is being phased down.
• Newer Systems: A2L systems are compliant equipment that can be serviced going forward under current federal rules.

What Property Managers Can Do

1. Talk to Investors Now
   • Explain the two deadlines: the 2025 manufacturing limit is in effect, and the installation limits (updated May 2026) apply to systems built from post-2024 components.
   • Update cost projections.
   • Flag VRF system timelines separately if relevant to their portfolio.
2. Audit HVAC Systems
   • Book vetted HVAC Pros to inspect the age and condition of every system across the portfolio.
   • Provide investors with clear reports identifying which units are candidates for near-term replacement.
3. Build a Replacement Schedule
   • Rank units by what a failure would cost, such as an attic air handler over a finished ceiling.
   • Weigh units serving occupied homes during peak season above units that can wait.
   • Schedule replacements during vacancy at make-ready unit turnover, when access is full and there’s no after-hours premium.
   • Spread replacements across budget cycles to reduce lump-sum cost.
   • Order equipment early, especially heading into cooling season.
4. Check Incentives Carefully
   • The federal 25C energy efficiency tax credit expired December 31, 2025 and is no longer available for 2026 installations, according to the IRS.
   • State-level rebate programs and utility incentives vary by location. Check with your state energy office and utility provider.
   • Confirm eligibility for rental property before building rebates into project budgets.
5. Confirm Pro Certification for A2L Work
   • The EPA’s Section 608 program requires certification for most substitute refrigerants, including HFCs.
   • None of the Section 608 exemptions apply to R-32 or R-454B, according to the EPA’s November 2025 proposed rule.
   • A2L equipment carries a “To Be Repaired Only by Trained Service Personnel” label, per the same EPA proposed rule.
   • Ask every Pro for their 608 card and their A2L training records before approving an install.

Get Ready: Next Steps for 2026

Start by contacting investors with an update. Both rules are in effect. From there, schedule HVAC inspections now, before cooling season demand limits Pro availability.

If replacements are likely, order equipment early instead of waiting for a breakdown. Before any new installation goes ahead, confirm the HVAC Pro holds Section 608 certification and A2L training.

Finally, check what state and utility incentive programs are available in each market where you operate. Federal credits are gone, and what’s on offer varies significantly by location.

Planning A2L Replacements With Lula Property Maintenance

The 2025–2026 HVAC refrigerant transition brings new compliance requirements and changes how replacements get planned and budgeted. Property managers who stay ahead of it (auditing systems, updating budgets, building replacement plans, and working with properly certified HVAC Pros) put their investors in a much stronger position than those who wait for systems to fail.

For compliance details, see the EPA’s Technology Transitions HFC Restrictions by Sector page. For refrigerant handling rules, see the EPA’s Section 608 program.

Lula routes HVAC work to its vetted Pro network of 9,000+ licensed and insured Pros across 50+ US markets. HVAC replacement is priced through the flat-rate HVAC replacement catalog, so the quote is the invoice. Find out how to set up Lula maintenance coordination.

R-32 Refrigerant FAQ

Is R-32 Legal in the US?

Yes. The EPA’s SNAP program lists R-32 as acceptable with use conditions for new residential and light commercial air conditioners and heat pumps. Those conditions include required warning labels and the UL 60335-2-40 safety standard, according to the EPA’s November 2025 proposed rule.

Will R-32 Be Phased Out?

Not under the current federal rules, since R-32’s GWP of 675 is under the 700 limit. In its November 2025 proposed rule, the EPA proposed updating R-32’s use conditions, including a move to a newer edition of UL 60335-2-40. Those changes are still proposals, and they cover how R-32 equipment is built.

What Are the Drawbacks of R-32?

R-32’s main tradeoff is flammability. A2L means lower flammability, while R-410A is A1. R-32 equipment carries the “To Be Repaired Only by Trained Service Personnel” label, according to the EPA’s November 2025 proposed rule. It also falls under the Section 608 rules covered in step 5.

In the same Federal Register notice, the EPA recommends spark-proof tools, proper ventilation, and flammable-refrigerant training, and it states that guidance isn’t binding.

Can R-32 Go Into an R-22 System?

No. R-32 can’t be used as a retrofit refrigerant in an R-22 system either. The EPA, in a November 2025 proposed rule in the Federal Register, restates that R-32 may be used only in new equipment designed specifically and clearly identified for it. Moving an R-22 unit to R-32 means replacing the system.