Loading NuWatt Energy...
We use your location to provide localized solar offers and incentives.
We serve MA, NH, CT, RI, ME, VT, NJ, PA, and TX
Loading NuWatt Energy...
NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
Get a Free QuoteR-22 is already banned. R-410A is being phased out. Here's what Vermont homeowners need to know about the transition to R-454B and R-32 — and why it's actually good news.
R-22 phasedown begins
R-22 production banned
New R-410A equipment banned
85% HFC reduction target
Check the nameplate on your outdoor unit — it lists the refrigerant type. Or use the age of your system as a guide:
Quick Check
Production and import banned since January 1, 2020.
Common In
AC/HP installed before 2010
Impact
Repair costs $100-$300 per pound. Typical recharge: $500-$1,500. Supply shrinking every year.
What To Do
Replace system immediately. Your repair costs will only increase.
EPA AIM Act mandates 85% HFC production reduction by 2036. New equipment banned from using R-410A as of Jan 1, 2025.
Common In
AC/HP installed 2010-2024
Impact
Current systems still work. Repair refrigerant available but prices rising. New systems use R-454B or R-32.
What To Do
Plan replacement within 3-5 years. No rush, but don't invest in major R-410A repairs.
Low-GWP replacement for R-410A. Used by Carrier, Lennox, Trane, Goodman, Rheem, and others.
Common In
New systems 2025+
Impact
Standard for most new systems in 2025+. Similar performance to R-410A at lower environmental impact.
What To Do
This is what most new Vermont heat pumps will use.
Lower-GWP alternative used by Mitsubishi, Daikin, Fujitsu, and other Asian manufacturers.
Common In
New systems 2024+
Impact
Excellent cold-climate performance. Many Vermont-popular brands (Mitsubishi Hyper-Heating, Fujitsu XLTH) use R-32.
What To Do
Great choice for Vermont — proven in cold climates.
Vermont's Climate Zone 6 (~7,200 HDD) demands cold-climate certified heat pumps. The good news: the new refrigerants perform as well or better in extreme cold.
Both R-454B and R-32 are classified as A2L (mildly flammable). This sounds concerning but in practice it means almost nothing for homeowners. A2L refrigerants require a very specific concentration AND an ignition source to burn — conditions that essentially never occur in residential installations. Your installer follows updated safety codes, but from your perspective, there's no practical safety difference from R-410A.
R-22 has been banned since 2020. Every year, repair costs increase as supply dwindles. A single R-22 recharge now costs $500-$1,500. That money is better spent toward a new system with Efficiency Vermont rebates.
R-22 Recharge Cost
$500-$1,500
New HP (after rebates)
$3,000-$6,000
Annual Savings
$800-$2,500
Your system works fine today. R-410A repair refrigerant will be available for years. But don't invest in major repairs ($1,500+) on an R-410A system — that money is better spent toward a new R-454B/R-32 system.
You're on the current-generation refrigerant. Your system will be fully supported for its entire 15-20 year lifespan with affordable repair parts and refrigerant. No action needed.
Upgrading from R-22 or R-410A to a new cold-climate heat pump? Efficiency Vermont and your utility offer substantial rebates.
System Cost
$14,000
Efficiency VT
-$1,200
GMP Bonus
-$600
Net Cost
$12,200
Income-eligible GMP customers save an additional $2,000, bringing net cost to ~$10,200.
Not yet for existing systems. Your current R-410A heat pump or AC will continue to work normally. However, as of January 1, 2025, manufacturers can no longer produce new equipment using R-410A. Repair refrigerant remains available but prices are rising as production decreases under the EPA AIM Act.
Check the nameplate on your outdoor unit — it lists the refrigerant type. Systems installed before 2010 likely use R-22. Systems installed 2010-2024 typically use R-410A. If you can't find it, your HVAC technician can identify it during a service call.
Yes. R-454B is classified as A2L (mildly flammable), which means it's extremely difficult to ignite under normal conditions. It requires a specific concentration and ignition source that don't exist in residential settings. Installation follows updated safety standards, but from a homeowner's perspective, there's no practical safety difference from R-410A.
If your R-410A system is working well and under 8-10 years old, there's no urgency to replace. R-410A repair refrigerant will be available for years. However, if your system needs major repairs ($1,500+), it makes more sense to upgrade to a new R-454B or R-32 system and take advantage of Efficiency Vermont rebates.
Both perform well in cold climates. R-32 has a slight edge in some cold-climate models (Mitsubishi Hyper-Heating uses R-32 and operates to -13°F). R-454B is used by Carrier and Lennox cold-climate lines. The bigger factor is the specific model's cold-climate rating rather than the refrigerant type.
Efficiency Vermont's qualified product list is increasingly shifting to R-454B and R-32 systems. While some R-410A models may still qualify through existing inventory, new models being added to the list use low-GWP refrigerants. Choosing R-454B or R-32 ensures you're eligible for current and future rebate programs.
Get a free quote for a cold-climate heat pump with R-454B or R-32 refrigerant. Efficiency Vermont rebates available.