NEW REFRIGERANTS!

R-454B vs. R-32: What to know before you upgrade

If you’re planning to upgrade or replace your HVAC system, you’ve probably heard about the new generation of refrigerants. R-454B and R-32 are two of the most talked-about options—and both meet the latest environmental regulations while offering better efficiency and lower impact.

But how do they compare? And which one makes the most sense for your space? Here’s a breakdown to help you understand the differences.

R-454B

R-454B

Next-gen replacement for R-410A

R-454B is a refrigerant blend built for ultra-low environmental impact. It’s newer to the market and designed to meet upcoming regulations.

  • Efficiency: Performs on par with R-410A in most systems, with noticeable improvements when paired with newer, high-efficiency equipment.
  • Cost: Slightly higher; you may also need updated tools or training for proper handling and servicing.
  • Serviceability: Because it’s a blend, repairs require more care—especially if refrigerant is lost and needs to be recharged accurately.
  • GWP: 466 (Global Warming Potential), significantly lower than R-410A and lower than R-32.
  • Safety: A2L-rated—just like R-32—meaning it’s classified as mildly flammable and safe with proper system design and ventilation.
  • Best for: Ideal for homes aiming for ultra-low emissions, colder regions that need reliable backup heat, and systems designed with long-term regulatory compliance in mind.
1000x1200 refrigerant

R-32

R-32

Efficient, simple, proven

R-32 is a single-component refrigerant that’s been used worldwide for years. It’s efficient, easier to service, and costs less to produce and charge.

  • Efficiency: Performs especially well in warmer climates where cooling demand is high.
  • Cost: More affordable than R-454B, with lower system charge requirements reducing overall refrigerant volume and expense.
  • Serviceability: Single-component refrigerant makes it easier to recover, recharge, and recycle—no risk of blend separation.
  • GWP: 675—lower than R-410A but higher than R-454B; still a marked improvement in environmental impact.
  • Safety: A2L-rated—mildly flammable, but safe when installed and handled properly under standard residential codes.
  • Best for: A practical option for homes in hot regions, budget-conscious system upgrades, and straightforward retrofits that don’t require major changes.
1000x1200 refrigerant R32

What do they have in common?

  • No ozone depletion
  • Lower emissions than R-410A
  • Safe for residential use when installed correctly
  • Meet federal standards (AIM Act) and local codes (like CARB)

Which refrigerant do you need?

Making the correct choice depends on where you live, how you use your system, and whether you’re replacing or starting from scratch. We’ll help you sort through it without pushing one choice over the other. Just the facts and what fits your setup.

LET US HELP YOU DECIDE