What refrigerant can I use instead of R32?

Author: Micaela Boyle V  |  Last update: Wednesday, July 30, 2025

R32 is a popular choice, due to its availability, performance and efficiency, but R454B and R452B also offer convenience and, potentially, low system qualification costs. Further alternatives are also entering the market.

What refrigerant is compatible with R32?

Compatibility: R32 is compatible with existing air conditioning systems that use R22 and R410A, making it a suitable alternative for retrofitting existing systems. However, it's important to consider compatibility with the specific system and components before retrofitting to R32.

What is the alternative to R32 refrigerant?

NEW AC32: the hydrocarbon cylinder to... The 4.5 kg NEW AC32 cylinder, designed to replace up to 11.25 kg of R32, combines propane (R290) and ethane (R170) in a high-purity hydrocarbon mixture.

What is the replacement for R32 gas?

Which Refrigerant Can Be Replaced By R32 Refrigerant? The R32 refrigerant gas is the best replacement for the R410A refrigerant. But they are not vice versa. That means, the R410A is not used instead of R32 because it has GWP 675, which is 30% lower than R410A when it has 2090 GWP.

Can I replace R32 with R134a?

R32 and R152a have a reduced global warming potential than R134a, which indicates that R32 can be used as substitute for R134a in refrigeration systems.

Refrigerants 410a OUT! R32 IN! Here's Why!

What is the difference between R32 and R134a?

Regarding safety, R134a has low toxicity and flammability, while R32 exhibits low toxicity and mild flammability. Thus, R134a is considered safer than R32. Furthermore, the COP value of R134a was found to be higher than that of R32, indicating that R134a offers greater efficiency for the heat pump compared to R32.

Can I use 410A instead of R32?

However, R32 is not a drop-in replacement for R410A — and vice versa — because the two require different operating conditions.

Why is R32 refrigerant banned?

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.

Can I replace R32 with R22?

Relatively, R32 has very low GWP compared to R22, and therefore leading R32 to be a potential substitute for R22.

Can anyone buy R32 refrigerant?

Only Section 608 certified technicians can purchase refrigerants intended for use with stationary refrigeration and air-conditioning equipment.

Can you replace R32 with R290?

The power consumption of R290 is 35% decrease from that of R32. The cooling capacity of R290 has decreased by 33.15% from that of R32. For the COP value, R290 was a decrease 20.01% from R32. The results obtained show that the performance of the refrigerant R290 has not been maximized to replace refrigerant R32.

What are the problems with R32 refrigerant?

Toxic substances like hydrogen fluoride and carbon dioxide are created when R32, like all fluorinated refrigerants, is burnt. Asphyxiation and freeze burns are also a risk.

Can you reclaim R32 refrigerant?

R-32, being a pure and single component refrigerant, has all the characteristics needed to be easily recovered, recycled, or regenerated, so to enter the reclaimed refrigerant market and be reused.

What is the next refrigerant after R32?

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.

Can you use R22 pipe for R32?

For R32 model, use pipes, flare nut and tools which is specified for R32 refrigerant. Using of existing (R22) piping, flare nut and tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury. Thickness of copper pipes used R32 must be more than 0.8mm.

What pressure should R32 run at?

The working (operating) pressure of R32 is about 12 – 26 Bar (174-377 Psi). It should be noted that while the operating pressure of R32 and R410A is similar, the former has a better ability to exchange heat-load, thus delivering a higher capacity.

Is there a replacement for R32 refrigerant?

MULTICOOL-HC32 is a high purity mixture of propane R290 and R170 ethane. It is a refrigerant with a reduced global warming potential (GWP). It is designed to replace R410a and R32 in most stationary residential and commercial air conditioning systems.

Can you mix R134a with R32?

2, the pressure when the condensation temperature is 65 ° C. or higher is It can be seen that it is necessary to mix R134a (or R1234yf) with R32 in an amount of 10 wt% or more in order to suppress the pressure to less than the desired design pressure (4.15 MPa).

Can I replace R407C with R32?

Can I use R32 in my existing air conditioning system? R32 can not be used as a drop-in replacement on existing R22, R407C and R410A systems.

Is R32 banned in the UK?

The F-Gas regulations are a phase down (not out) of higher GWP refrigerants. R410A equipment will still be readily available to buy. R32 will be introduced and will run alongside R410A equipment for the coming years.

Can I put 410A in a R32 system?

No. R32 is not suitable as a drop-in replacement for R410A and must only be used in systems specifically designed for R32.

What is another name for R32 refrigerant?

R32 refrigerant is also known as difluoromethane and belongs to the HFC family of refrigerant. This gas is poised to replace the other gaseous such as R-410A and R-407C as the preferred gas due to its lower Global Warming Potential. Its chemical formula is CH2F2.

What is the new refrigerant 2025?

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.

Do you need a special vacuum pump for R32?

You will, of course, need to ensure that any equipment you use includes an R32 compliant recovery unit, an R32 specific vacuum pump, a torque wrench set to the manufacturer's recommendations on your flare joints and for pipework, stick to material that is R410A rated, as this also suitable for R32.

Can I use the same copper piping when replacing my AC unit with R410A to R32 refrigerant?

If the refrigerant used for the existing unit is other than R22, R407C and R410A, the existing refrigerant piping cannot be used. If the existing unit has another use than air conditioning, then existing refrigerant piping cannot be used.

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