Hey there, Mike Sanders here. If you’ve been looking at PTACs lately—especially ones from 2025 or newer—you’ve probably noticed a shift. More and more units are using something called R-32 refrigerant instead of the old standby, R-410A.
So, what’s R-32? Why are manufacturers switching over? And is it the right choice for your next PTAC?
Let’s cut through the noise and break it down the way a technician would tell it to you straight.
🧊 What Is R-32 Refrigerant?
R-32 is a newer, low global warming potential (GWP) refrigerant that’s replacing R-410A in a lot of modern air conditioners—including PTACs.
Here’s the quick comparison:
| Feature | R-410A | R-32 |
|---|---|---|
| GWP (Global Warming Potential) | 2,088 | 675 (about 70% less) |
| Efficiency | Good | Better |
| Pressure | Similar | Slightly higher |
| Flammability | Non-flammable (A1) | Slightly flammable (A2L) |
| Charge Amount | Higher | Lower (uses less refrigerant) |
So yeah—R-32 is cleaner, leaner, and more efficient. That’s why so many manufacturers are switching.
🏛️ Why the HVAC Industry Is Moving to R-32
If you’ve heard of the AIM Act or the EPA’s HFC phasedown, you know that the U.S. is under pressure to reduce high-GWP refrigerants like R-410A.
R-32 checks all the boxes:
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✔️ Lower environmental impact
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✔️ High cooling performance
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✔️ Readily available
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✔️ Already used globally (think Japan, Europe, Australia)
By 2025, R-32 isn’t just “new”—it’s the industry standard for PTACs, mini-splits, and many central systems.
🔍 Is R-32 Safe?
Yep, but here’s the deal: R-32 is mildly flammable (called “A2L”). That’s why it’s only approved for factory-sealed systems like PTACs and mini-splits. These units are designed with safety in mind and meet UL and ASHRAE safety standards.
If you’re using a modern PTAC from a reputable brand and installing it properly, you’ve got nothing to worry about.
🔋 Does R-32 Perform Better?
Short answer: yes.
R-32 transfers heat more efficiently than R-410A. That means:
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🔹 Faster cooling
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🔹 Lower energy use
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🔹 Smaller carbon footprint
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🔹 More compact units (since less refrigerant is needed)
For anyone running PTACs in hotels, apartments, or commercial spaces, the savings on your utility bills can add up fast.
🔧 Can You Just “Swap In” R-32 for R-410A?
Nope. You can’t retrofit an R-410A PTAC with R-32. Different pressures, different oil, and different safety requirements.
That means if you’re upgrading or replacing an old PTAC, you’ll want to get a factory-sealed R-32 system built from the ground up for that refrigerant.
Luckily, The Furnace Outlet carries plenty of options right here:
👉 R-32 PTAC Collection
🛠️ Pros and Cons: Is R-32 Right for You?
✅ Pros
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Lower energy bills
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Smaller environmental footprint
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Higher cooling efficiency
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Qualifies for rebates in many states
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Future-proof with new regulations
❌ Cons
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Slightly flammable (but safe in sealed PTACs)
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Can’t be retrofitted into R-410A systems
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Limited repair options if leaks occur (factory-sealed)
Mike’s Take: Should You Go With R-32?
If you’re buying a new PTAC in 2025, go with R-32.
It’s more efficient, better for the planet, and where the industry’s headed anyway.
I wouldn’t install an old R-410A PTAC in my own house right now—not when R-32 is cleaner, quieter, and often qualifies for energy rebates.
Just make sure you’re buying from a trusted source, getting the right voltage (208V, 230V, or 265V), and matching the unit to your room size.
Final Thoughts
R-32 isn’t some fad—it’s the future of HVAC, and it’s already here. For PTACs in 2025, it’s your best bet for energy savings, eco-conscious cooling, and long-term peace of mind.
Need help picking one out? I’ve got your back. Check out The Furnace Outlet’s R-32 PTAC lineup and give your space the upgrade it deserves.
Until next time—
Stay cool, stay smart, and always read the spec sheet.
– Mike
