Note From Samantha
If you are shopping for a new HVAC system you have probably noticed something that was not talked about much just a few years ago, refrigerants.
Traditionally, the majority of homeowners looked at equipment size, efficiency ratings, warranties and installation costs. Seldom was the type of refrigerant part of the discussion. But these days, more homeowners are hearing about R-32 refrigerant and asking themselves if it’s something they need to understand before making a purchasing decision.
Yes, in short.
The HVAC industry is going through one of its biggest refrigerant transitions in decades. Many manufacturers are now introducing systems using R-32 refrigerant, as part of a wider move to cut the environmental impact while maintaining strong heating and cooling performance. When older refrigerants are phased out of new equipment, homeowners will see more R-32 when they’re shopping for replacement systems.
The good news is that you don’t have to be an HVAC engineer to know what’s going on. Knowing a few key facts about refrigerants and why the industry is changing can help you make better decisions when it is time to replace your heating and cooling system.
What is a Refrigerant?
Before talking about R-32 specifically, it is useful to look at what a refrigerant does. Many homeowners think of air conditioners as making cold air. In practice, HVAC systems remove heat from the home and move that heat outside. This process works because of the material that is the refrigerant .
The refrigerant flows through the HVAC system, converting back and forth between liquid and vapour. These changes allow it to absorb heat inside and give it off outside. Refrigerant is what makes air conditioning possible.
Due to the important role of refrigerants in system operation, manufacturers, regulators and environmental organisations closely evaluate the performance and environmental impact of refrigerants.
Why is the HVAC industry switching to new refrigerants?
The main driver for refrigerant changes is related to environmental issues. Many years ago, HVAC systems used refrigerants that were later found to be contributors to ozone depletion or have relatively high Global Warming Potential (GWP). As our understanding of the science improved , various governments across the globe set up regulations that allowed for the use of refrigerants with lower environmental impacts .
The U.S. Environmental Protection Agency has a lot of information about refrigerants and environmental regulations: https://www.epa.gov
The HVAC industry has undergone several refrigerant transitions already. Many older systems used R-22 refrigerant. Later manufacturers mostly shifted to R-410A. Many manufacturers these days are moving to refrigerants such as R-32, which has a lower GWP value than the previous ones.
For homeowners, that means refrigerant selection is becoming an increasingly important part of the HVAC buying process.
What Is R-32 Refrigerant?
R-32 is a new refrigerant found in many HVAC manufacturers' residential heating and cooling equipment. One of the reasons for its increasing popularity is the lower Global Warming Potential in comparison to R-410A that has been used in many residential HVAC systems for years.
While homeowners may not see or touch refrigerant directly, the refrigerant in the equipment impacts:
✔ Impact on the environment
✔ Designing equipment
✔ Efficiency of the system
✔ Future service consideration
✓ Regulatory Compliance
Manufacturers have invested heavily in equipment specifically designed for R-32 as it fits with current industry aims for performance and sustainability.
What is Global Warming Potential (GWP)?
Homeowners who research refrigerants are likely to run across the term Global Warming Potential, which is often shortened to GWP.
GWP is a way to compare the warming effect of a greenhouse gas to that of carbon dioxide, over a specific time period. The lower the GWP value, the lower is the potential environmental impact if the refrigerant is released to the atmosphere.
Comparison Table: Refrigerant GWP
| Refrigerant | Approximate GWP |
|---|---|
| R-22 | 1,810 |
| R-410A | 2,088 |
| R-32 | 675 |
Due to its lower GWP, R-32 has become a popular alternative to R-410A, providing manufacturers with a more environmentally friendly option without sacrificing system performance. The Department of Energy provides additional information on energy efficiency and HVAC technologies
This lower GWP is one of the biggest benefits of R-32 equipment for many home owners.
R-32 vs R-410A: How Do They Compare?
Many homeowners replacing an older HVAC system will be comparing equipment that uses R-410A to equipment designed for R-32.
Both refrigerants can deliver good heating and cooling performance, but there are some differences worth noting.
Comparison Table: R-32 vs R-410A
| Feature | R-32 | R-410A |
| GWP | ✅ Lower | ⚠ Higher |
| Efficiency Potential | ✅ Strong | ✅ Strong |
| Future Availability | ✅ Growing | ⚠ Declining in New Equipment |
| Environmental Impact | ✅ Reduced | ⚠ Greater |
| New Equipment Adoption | ✅ Increasing | ⚠ Transitioning Away |
It’s important to understand that homeowners won’t necessarily see dramatic day-to-day operational differences between the two refrigerants. But the long-term regulatory and environmental benefits of R-32 are catching on and industry-wide adoption continues to increase.
Will R-32 Improve My HVAC System’s Efficiency?
However, one of the most frequently asked questions we receive from homeowners is whether R-32 equals lower energy bills. The answer is somewhat tricky.
Efficiency of the whole system is not determined by the refrigerant itself. "Equipment design, installation quality, air flow, ductwork, sizing, maintenance and operating conditions all play important roles.
R-32, however, has thermodynamic properties that can contribute to efficient system operation if the equipment is properly designed and installed.
This means homeowners should think of R-32 as just one part of an entire high-performance HVAC system, not as a guarantee of efficiency by itself.
Still the most important factors influencing utility bills:
✔Correct system sizing
✔ Professionally installed
✔ Air flow is good
✔ Good ducting
✔ Good maintenance
Is R-32 Safe?
Homeowners naturally think about safety when they hear about new refrigerants. Modern R-32 equipment is built with safety standards and regulations in mind. Equipment is manufactured specifically for the refrigerant being used and must comply with applicable safety requirements. Organisations like Underwriters Laboratories (UL) and trade groups are still setting standards for refrigerant use and equipment design.
Homeowners should realise that HVAC systems are not just being charged with a different refrigerant. The equipment is designed and certified to operate on that refrigerant. It’s still important to have qualified HVAC professionals install it properly, no matter the refrigerant.
Why Manufacturers Are Spending Big on R-32
The HVAC industry is making a large investment into R-32 technology because it hits several key goals all at once.
They are:
🌎 Environmentally friendly
⚡ Strong Potential for Performance
🔧 Future regulatory compliance 🏠 Continued residential adoption
📈 Product development for the long term
Many of the major manufacturers currently have, or are rolling out, product lines based on R-32 technology. This is expected to continue as the industry adapts to changing environmental rules and market needs.
What does this mean for HVAC ownership in the future?
One of the most useful questions homeowners can ask is how changes in refrigerants will impact them over the next 10 to 15 years. Historically, when equipment was purchased with phased-down refrigerants, such as the case with R-22, the service costs increased, and refrigerant availability was limited. Nobody knows for sure what the upcoming regulations will be, but many homeowners see R-32 equipment as a way to stay in step with where the HVAC industry is headed.
Potential benefits include:
✔ Equipment based on newer standards
✔ Better future regulatory alignment
✔ Increasing manufacturer support
✔ Environmentally friendly
✔ Continued availability of product
These issues may become more important for homeowners who plan to stay in their home for many years.
Myths about R-32:
As with any new technology, there are a number of misconceptions that often circulate among homeowners.
Myth: R-32 Automatically Makes All Systems Better
The truth is, the quality of the system is a function of many things. Equipment size, quality of installation, ductwork performance, airflow, and maintenance still count.
Myth: The Refrigerant Is The Most Important HVAC Decision
Refrigerant is important, but homeowners can't forget other factors such as contractor quality, system design, warranty coverage and installation practices.
Myth: Existing Systems Should Be Replaced Right Away
Most homeowners don’t need to replace working HVAC systems just because newer refrigerants are available. Replacement decisions should take into account age, reliability, efficiency, cost of repairs, and overall system condition.
Questions a Homeowner Should Ask Before Purchasing an R-32 System
If you’re thinking about a new HVAC system, here are some questions you may want to ask your contractor:
✔ Is the equipment designed specifically for R-32?
✔ Is the system AHRI Certified?
✔ What are the system efficiency ratings?
✔ What is the warranty like compared to other alternatives?
✔ What kind of maintenance can I expect?
✔ How will the system be sized to my home?
✔ Can I use smart thermostats with the equipment?
✔ What indoor air quality choices are there?
Homeowners can use the answers to evaluate the whole HVAC package, not just the refrigerant type.
Comparison Chart: Thinking Short-Term vs Long-Term
| Consideration | Short-Term Focus | Long-Term Focus |
| Initial Cost | ✅ Lower Priority | ⚠ Important but Balanced |
| Refrigerant Future | ⚠ Overlooked | ✅ Considered |
| Environmental Impact | ⚠ Less Focus | ✅ Greater Focus |
| Equipment Support | ⚠ Immediate Need | ✅ Long-Term Availability |
| Future Compliance | ⚠ Rarely Considered | ✅ Evaluated |
Understanding this can help homeowners decide on options that support their comfort today, as well as their ownership down the road.
Samantha’s conclusion
For most homeowners, refrigerants have traditionally been a behind-the-scenes aspect of HVAC operation. But now that the industry is moving toward newer technologies, refrigerant selection is becoming a more prominent part of the purchasing process.
R-32 is one of the most important refrigerant developments in the industry in years. It’s growing manufacturer support, lower Global Warming Potential and compliance with evolving environmental regulations are making it an increasingly popular option in residential HVAC equipment. That said, refrigerant is just one piece of the HVAC puzzle. A well sized professionally installed and maintained system will outperform a badly designed system no matter what refrigerant is used in most cases.
Look past the equipment brochure when making your next HVAC investment. Check for installation quality, system match, airflow, humidity control, warranty coverage, and long-term ownership goals. Looking at the big picture puts you in a better position to choose a system that will provide comfort, efficiency and dependability for many years to come.
Samantha Reyes
The Smart Shopper
The Furnace Outlet
