Another HVAC refrigerant phaseout is on the way. Naturally, this has many homeowners asking questions. Do I have to replace my air conditioner because of the 2026 refrigerant change? Can I still use my old refrigerant? Will the new A2L refrigerant work in my old AC? These are smart questions to ask.

The good news is that most Sioux Falls–area homeowners won’t need to install a new system in 2026 because of the refrigerant change. However, there are important things you should know about the 2026 refrigerant changes. Here, the HVAC professionals at Howe will break down the refrigerant changes clearly so you can plan ahead with confidence.

In 2026, there will be air conditioner refrigerant changes focused on phasing out R-410A in new air conditioners and heat pumps. This is not a ban on R-410A. You can keep using R-410A refrigerant in your current AC or heat pump.

However, as of Jan. 1, 2026, HVAC technicians can no longer install new cooling systems that use R-410A. Any new system installation after that date needs to be equipment that uses an approved R-410A replacement.

Due to Environmental Protection Agency (EPA) rules, R-410A is being replaced because it has a high GWP, or global warming potential. GWP is a number that shows how much a refrigerant can contribute to warming the atmosphere if it leaks. It’s part of the HVAC industry’s ongoing effort to be more climate friendly, and part of a larger EPA phaseout of ozone-depleting substances.

To comply with the EPA refrigerant regulations, in 2026 manufacturers will begin making cooling systems that run on low-GWP refrigerants called A2L refrigerants. The move is similar to the phaseout several years ago of an earlier generation of refrigerant called R-22, sometimes called Freon. Now, R-410A is being replaced by a refrigerant that experts say is even better for the environment.

A2L refrigerants, the new refrigerants for 2026, will replace R-410A in new systems.

A lot about A2L refrigerants is explained in their name: The “A” means low toxicity. The “2L” is a safety classification, indicating it is mildly flammable. In practical terms, mildly flammable means A2L will not easily ignite under normal home conditions and is safe when installed correctly. In addition, new HVAC systems that run on A2L will have more safety features and mechanisms to ensure the refrigerants work correctly and safely.

The most common type of A2L refrigerant being used in new HVAC systems is R-454B refrigerant. Some manufacturers are making new equipment that uses another type of A2L refrigerant called R-32 refrigerant. While there are other A2L options available to HVAC manufacturers, you’re most likely to find new HVAC systems using either R-454B or R-32.

Many air conditioners use R-410A refrigerant. If your AC unit runs on R-410A, you can still use it. You don’t have to buy a new air conditioner. You can still get your current AC repaired. You can still buy R-410A refrigerant in 2026 from your local HVAC company—if they have it.

However, as the R-410A phaseout continues and time goes on, it may become more expensive and harder to find.

The biggest impact of the 2026 refrigerant changes will be to homeowners considering AC installation or replacement because new systems must use the new A2L refrigerants.

You shouldn’t notice any difference in comfort from an air conditioner that runs on an A2L refrigerant compared to one that runs on the old R-410A. However, A2L systems will likely cost more based on their updated safety features. On the plus side, A2L cooling systems are more energy efficient than their counterparts that ran on R-410A. That means they use less power to cool your home.

Those with commercial HVAC systems may feel this change more than those with residential systems. Businesses often use larger rooftop units, split systems or multiple systems across one property. Because of this, commercial HVAC systems can use more refrigerant and face more complex building code requirements than residential units.

If your commercial HVAC equipment uses R-410A and needs major repairs in 2026, HVAC replacement may make more financial sense. Some businesses will need compliance planning to navigate the changes. Planning ahead helps avoid downtime, surprise costs and permit delays.

Yes. Both homeowners and business owners may see some HVAC cost increases in 2026. Manufacturers have redesigned new systems to use A2L refrigerants, and those updates can affect equipment pricing. At the same time, production of older R-410A refrigerant is being phased down, which may increase costs over time as it gets harder to find. Supply chain adjustments, updated safety standards and contractor training can also influence HVAC installation pricing.

Planning ahead can help you avoid surprises and make smarter budgeting decisions.

The 2026 refrigerant changes don’t have to be confusing. Howe will guide you every step of the way. As trusted HVAC professionals in Sioux Falls, we can inspect your system, confirm which refrigerant it uses and help you plan for future upgrades. We also offer routine HVAC maintenance, because system upkeep keeps your equipment efficient and helps extend its lifespan.

Don’t get caught off guard by refrigerant changes. Call or text Howe at 605-339-2020 today for air conditioning services in Sioux Falls, SD.