If you own a home in the McKinney or Allen area, you may have heard that the HVAC industry is undergoing a significant change. Starting in 2025, new regulations require a shift away from R410A refrigerant toward lower-impact alternatives. Harris Air Services has been preparing for this transition, and we want to make sure you have the information you need to make confident decisions about your home’s comfort system.
Key Takeaways:
- R410A is being phased out due to its high global warming potential
- New systems will use R454B or R32, both of which are more environmentally friendly
- Existing R410A systems cannot be retrofitted and will eventually need replacement
- Installation costs are expected to increase 15 to 30% industry-wide
- All Harris Air technicians are factory-trained on the new refrigerants and ready to help
Why the HVAC Industry Is Switching Refrigerants
The shift is driven by federal environmental regulations, specifically the AIM Act, which directs the EPA to phase down refrigerants with high global warming potential. R410A carries a GWP of 2,088, making it one of the more environmentally harmful refrigerants still in wide use. According to the EPA’s AIM Act overview, these changes are part of a broader commitment aligned with the Kigali Amendment.
The replacement refrigerants, R454B and R32, have GWPs of 466 and 675 respectively. For homeowners in North Texas, this means any new HVAC system purchased going forward will use one of these next-generation refrigerants.
R454B vs. R32: What Homeowners Should Know
Both are approved replacements for R410A, but they have key differences:
- R454B is a blend with a GWP of 466 and lower flammability risk, making it the choice of many major manufacturers for new residential systems
- R32 is a single-component refrigerant with a GWP of 675, highly efficient but with a mild A2L flammability classification requiring specific handling
- Both are safe in systems designed for them and require certified technicians for installation and service
For most homeowners, the refrigerant choice is determined by the equipment manufacturer. Your certified installer will recommend the right system for your home.
Can You Retrofit Your Existing R410A System?
No. R410A systems operate at different pressures and use different lubricants than systems designed for R454B or R32. Attempting a retrofit is impractical and potentially unsafe. In our service calls across McKinney and Allen, this is one of the most common questions we hear from homeowners hoping to avoid a full replacement.
When your current system reaches the end of its service life, a complete AC installation or replacement with a new compatible unit will be required. Newer systems are designed to match or exceed the efficiency of older R410A equipment.
Are the New Refrigerants Safe and Efficient?
Yes on both counts. R454B and R32 are safe for residential use when installed in properly engineered systems. The A2L flammability classification applies to both, but this reflects a mild risk that is managed through certified installation practices and proper ventilation. All Harris Air technicians have completed factory training on A2L refrigerant handling.
On the efficiency side, new systems meet updated SEER2 standards and are built to perform as well as or better than the equipment they replace. The U.S. Department of Energy notes that modern high-efficiency systems can significantly reduce home energy use, which matters for homeowners running systems hard through North Texas summers.
What This Means for Installation and Maintenance
Servicing the new refrigerants requires updated tools, certifications, and safety procedures. Here is what changes on the technical side:
- Technician training: Certified A2L handling is required. Harris Air technicians are factory-trained and fully prepared
- Leak detection: Advanced detection equipment is necessary due to flammability considerations
- Specialized tools: Equipment rated for A2L refrigerants must be used during all service visits
- Ventilation: Proper airflow in confined spaces is essential when working with R454B or R32
Staying current with AC maintenance in McKinney remains just as important with the new systems. Regular tune-ups help catch refrigerant issues early and keep performance on track.
How the Transition Affects HVAC Costs
Homeowners should expect higher upfront costs when purchasing new systems. As R410A production is restricted, refrigerant costs for older systems will rise. New R454B and R32 compatible equipment carries higher manufacturing and compliance costs, and industry estimates project a 15 to 30% increase in installation costs compared to previous years.
Planning ahead is the best way to manage the change. If your system is aging, budgeting for a proactive replacement gives you more options than waiting for an emergency. Explore your options with our AC services in Allen.
Preparing Your Home for the Refrigerant Transition
The 2025 refrigerant transition does not require immediate action if your current system is running well. Existing R410A systems will continue to be serviced for the remainder of their service life, though refrigerant costs may increase as supply tightens. When the time does come to upgrade, certified installers will transition you to the right new equipment with minimal disruption.
Harris Air Services has been serving McKinney, Allen, and surrounding communities since 2008. Contact our team today to schedule a system evaluation or ask questions about your next HVAC upgrade.
Frequently Asked Questions
Do I need to replace my R410A system right now?
No. Existing systems will continue to be serviced until they reach the end of their service life.
Can I still get R410A refrigerant for my current system?
Yes, for now. It will remain available for servicing existing equipment, though costs may rise over time.
Is R454B or R32 more common in new systems?
R454B is currently the more widely adopted choice among major residential HVAC manufacturers in the U.S.
Will my energy bills change with a new system?
New systems are designed to meet or exceed current efficiency standards, which can lead to lower energy costs.
Are Harris Air technicians trained on the new refrigerants?
Yes. All technicians have completed factory training on A2L refrigerant handling and installation.