The replacements for R-410A are the two A2Ls, Forane® R-32 and
What is the replacement for R-410A? A lower GWP replacement for R-410A is Forane® R-32. Forane® 32 is a stand-alone third generation refrigerant for new residential and light commercial air conditioning systems, heat pumps and other HVAC applications.
With R410A going the way of R22, the new standard refrigerant contenders are A2L-class refrigerants R32 and R454B.
R-454B is NOT a drop-in replacement for R-410A.
Air conditioner and heat pump manufacturers are rolling out new refrigerants to comply with EPA guidelines. Starting in January 2025, no new HVAC systems will use R-410A refrigerant. Instead, most residential systems will use either R-32 or R-454B refrigerant, both of which have a comparably lower environmental impact.
If your system is nearing the end of its life, replacing it before 2025 could be a smart move to avoid higher prices later. Rising Repair Costs: If your system requires frequent repairs or uses R-22 refrigerant, which is already phased out, you might be better off replacing it now.
RS-53 (R470A) enables users to replace R410A in existing units with minimal changes and inconvenience at low cost.
The limited supply and more complex manufacturing process of R454B compared to its predecessor R410A contribute to its higher cost. Estimates suggest R454B could be over three times more expensive than R410A (Logan Services Inc.).
No. R32 is not suitable as a drop-in replacement for R410A and must only be used in systems specifically designed for R32.
R32 has the advantage of being a singlecomponent refrigerant with higher energy efficiency and a smaller physical footprint. It's already in use globally, so you can be confident in its reliability. R454B, while newer, has the benefit of an even lower GWP, making it the more environmentally friendly option.
Yes, R-410A will still be available for maintenance and repairs for many years. R-410A won't actually be phased out of production until the 2040s. Also, contractors can still reclaim and reuse refrigerant from older systems.
The pressure can become high enough for parts of the system to rupture. At the very least, leaks will occur. Mixing refrigerants is not an option either. This will contaminate the system, and the R22 will not evaporate under the higher suction pressure that R410A requires.
In most cases, R32 is the superior refrigerant when compared to R410A. While neither refrigerant depletes the ozone layer, R32 has a lower GWP and is easier to recycle. R32 also has lower operating and maintenance costs and is nowadays more common than R410A due to the phase-out.
Regulatory Changes: As the phase-out continues to restrict production levels and importation, the R-410A price will likely increase. Manufacturing Costs: Fluctuations in the cost of raw materials and manufacturing can also influence the price of refrigerants.
R-454B has a lower GWP than previous refrigerants, meaning it has a much lower climate impact. Trane is phasing in the transition to R-454B in 2024, starting with the adoption of R-454B refrigerant in its residential products, beginning with the XR15 SEER2 heat pump.
Basically, federal standards will require a new type of refrigerant to be used in brand-new home HVAC systems. Right now, cooling systems are required to use HFC and HCFC refrigerants, like R410a. The new guidelines will require A2L refrigerant to be used instead for all systems manufactured after a certain time.
The replacements for R-410A are the two A2Ls, Forane® R-32 and R-454B. Forane® R-32 can be used in new equipment designed specifically for mildly flammable refrigerants as a replacement for R-410A equipment. Its low density allows for the use of a smaller refrigerant charge.
Changes to the Dangerous Goods Legislation, effective in 2021, has new categories for A2L refrigerants. R32 is a synthetic greenhouse gas. If released to the atmosphere it can contribute to climate change. R32 is a flammable refrigerant.
ComStar's RS-53 (R470A) is the world's only drop-in retrofit replacement for existing R410a systems.
What refrigerant will replace R-410A in 2025? For whole-home systems, Lennox has chosen 2025 Compliant Refrigerant R-454B due to its excellent performance for ducted systems and zero ozone depletion potential. For mini-splits, we selected R-32, designed to optimize efficiency and reliability in ductless systems.
R-454B Refrigerant
Most HVAC manufacturers in the United States (among them Johnson Controls (York), Lennox, Trane, and Carrier) have decided to adopt R-454B (also known as Opteon™ XL41 or Puron Advance™) as the new standard refrigerant to replace R-410A.
The impending phaseout of R-410A, a widely used refrigerant in HVAC systems, marks a huge shift for homeowners and the HVAC industry. Set to take effect on December 31, 2024, this change is driven by global efforts to reduce greenhouse gas emissions and comply with environmental regulations.
While R32 and R410A are similar in many ways, they're incompatible with systems that aren't designed for them. For example, both refrigerant types are hydrofluorocarbons, which means they are more efficient and environmentally friendly than hydrochlorofluorocarbons like R22, also known as Freon.
Disadvantages:Different from R22 and R410A, the R32 is slightly flammable. But combustion will not occur unless three critical conditions are met, refrigerant concentration, constant oxygen, and an ignition source. In real practice, it's hard to meet all the combustion conditions.