👋 A Note from Jake Lawson
Over the last few years, R-32 has been the most popular topic of conversation among hotel owners, apartment managers, facility operators and HVAC contractors.
Most PTAC buyers care about BTU ratings, heating technologies, energy efficiency and installation requirements. All of those things are important, but refrigerant selection is becoming a more and more important part of the HVAC buying decision. Refrigerants are critical to the efficiency of the system, affect on the environment and how they work with changing industry regulations .
The HVAC industry has seen multiple generations of refrigerants over the decades as technology has advanced and environmental priorities have changed. Today's move to R-32 refrigerant is another big step in that evolution. Equipment based on R-32 is coming to market from manufacturers across the board in the HVAC industry, as it has several key benefits over many legacy refrigerants.
R-32 also helps PTAC systems to achieve higher efficiency levels, lower environmental impact and improved long-term sustainability. If you’re working on a hotel remodel, upgrading PTAC units in an apartment complex or evaluating equipment for a new build, understanding the benefits of R-32 can help you make more informed purchasing decisions.
❄️ What Is R-32 Refrigerant?
Before we discuss the advantages of R-32, let's understand what R-32 is.
R-32 is a hydrofluorocarbon (HFC) refrigerant that has gained popularity across the HVAC industry. It is used as a refrigerant on its own and as part of several refrigerant blends that have been used over the years.
R-32 is a more modern refrigerant , developed with efficiency and environmental concerns in mind . Older refrigerants were designed decades ago . This allows HVAC systems to effectively transfer heat while still maintaining very good performance levels. It has high heat-transfer qualities.
In practice, refrigerants act as the working fluids for air conditioning and heat pump systems. They take heat from somewhere and release it somewhere else. Refrigerants are absolutely essential for the operation of heat pumps and air conditioners.
Because of the close association of refrigerants with the operation of a system, refrigerant properties directly affect efficiency, capacity, environmental impact, and equipment design. This is partly because manufacturers are still heavily investing in refrigerant technology and system optimisation.
The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) offers a wealth of technical information on refrigerants and HVAC technologies at https://www.ahrinet.org , and is a great resource for property owners who want to learn more.
🌎 Lower Global Warming Potential
One of the key drivers of the industry’s move to R-32 is its lower GWP (Global Warming Potential).
Global Warming Potential is a way of comparing the environmental impact of various greenhouse gases. Lower GWP values generally indicate a lower potential environmental impact if refrigerant leaks out to the atmosphere.
R-32 has significantly lower GWP than many refrigerants used in earlier generations of HVAC equipment. The reduction supports industry-wide efforts to reduce environmental impact while maintaining high levels of system performance.
Environmental regulations are constantly evolving worldwide and many governments are encouraging or requiring the use of refrigerants with lower GWP values. The U.S. Environmental Protection Agency provides information on refrigerant phaseouts and environmental programs at https://www.epa.gov. Long-term equipment investments by property owners can benefit from choosing systems with lower-GWP refrigerants, helping facilities keep pace with future industry trends and support sustainability initiatives that are becoming increasingly important to tenants, guests and stakeholders.
⚡ Increased Energy Efficiency
One of the most appealing benefits of R-32 refrigerant continues to be its energy efficiency.
Modern PTAC units should provide reliable comfort and minimise operating expenses. Heating and cooling are some of the biggest energy uses in most buildings, so even small gains in efficiency can lead to big savings over time.
R-32 has good thermodynamic properties to facilitate efficient heat transfer in HVAC systems. This can help manufacturers to design equipment which can perform well in terms of cooling and heating while consuming less energy.
For hotels with hundreds of PTAC units, energy efficiency can be a direct bottom-line issue. Apartment complexes, senior living communities, student housing properties and office buildings share similar challenges. Lower power usage results in lower utility costs and contributes to overall sustainability objectives.
According to ENERGY STAR, improving HVAC efficiency remains one of the best ways buildings can reduce energy consumption. You can find their educational resources at https://www.energystar.gov . While efficiency is not only the refrigerant, R-32 provides the manufacturers a good platform to build higher performing PTAC systems to help property owners manage long term operating costs.”
💰 Lower Refrigerant Charge Requirements
Another often overlooked benefit of R-32 is that many systems require less refrigerant charge than some older alternatives,
That may sound like a technical detail, but it has some practical benefits.
The strong heat-transfer capabilities of R-32 mean that manufacturers can often achieve the target performance with a reduced refrigerant charge. The system may be designed more efficiently and have less impact on the environment because less refrigerant charge is needed.
“For facility operators with large equipment inventories, the ability to achieve strong performance with less refrigerant can be attractive from an operational and sustainability standpoint.”
That is also why R-32 is viewed by many HVAC manufacturers as a practical solution for the future of equipment development.
🏨 Why Hotels Are Taking Notice of R-32
Hospitality is one of the few industries with more PTACs.
Hotels, motels, extended stay, and resorts will have dozens or hundreds of PTAC systems running simultaneously. Small improvements in efficiency can therefore lead to significant savings across a whole property.
For hotel owners considering HVAC equipment, simple comparisons of purchase prices aren’t enough any more. Purchasing decisions are affected by long term operating costs, sustainability efforts, guest experience and regulations.
R-32 can contribute to achieving many of these goals at the same time. Less energy use can reduce operational costs. The lower the GWP, the better it helps to reach environmental targets. Contemporary R-32-based PTAC systems also feature sophisticated controls and improved performance capabilities to further enhance guest comfort.
With a continued focus on sustainability and operational efficiency, PTAC systems with R-32 are gaining popularity among hospitality brands.
Benefits for Apartments & Multifamily Properties
Apartment communities have a different set of challenges than hotels, but many of the benefits of R-32 are still very relevant. Unlike hotel rooms, apartments are occupied year-round with constantly changing occupancy patterns. This means HVAC equipment often runs continuously for long periods.
As a result, property owners are highly motivated to minimise operating costs while maximising the comfort of their residents. Efficient PTAC systems can lead to lower utility bills, better tenant satisfaction and higher property value.
Sustainability initiatives are also part of the long-term operating strategies of many of today’s multifamily developments. Lower-GWP refrigerants are by nature aligned with these goals and consistent with modern energy-efficiency goals .
As tenant expectations evolve, apartment communities are increasingly offering efficient HVAC equipment as part of their overall value proposition. 🔧 Driving Future Regulatory Compliance
One of the most beneficial advantages of R-32 is its future readiness.
The HVAC industry is still on its way to less environmentally damaging refrigerants. Regulatory agencies worldwide are encouraging the adoption of lower-GWP technologies and manufacturers are designing equipment for future compliance.
Today’s property owners who are purchasing PTAC systems are generally expecting years of service from them. Choosing equipment that is compatible with forthcoming industry standards can help alleviate worries about future regulatory changes.
No one can predict every policy change, but choosing modern equipment that includes broadly supported refrigerant technologies can help provide more confidence in long-term ownership decisions.
That sort of forward thinking is why many facilities managers now consider the choice of refrigerant to be just as important as traditional performance measures such as BTU capacity and efficiency ratings.
🌡️ Excellent Performance for PTAC Heat Pump Systems
PTAC heat pump systems are gaining popularity because they can heat and cool while increasing energy efficiency.
R-32 refrigerant fits this trend very well since it has very good heat transfer properties . Modern heat pumps operate efficiently by moving refrigerant effectively to transport thermal energy between the inside and outside of a building.
The performance of the refrigerant is especially critical to the overall performance of heat pump systems, because they transfer heat rather than create it directly.
Many manufacturers have found that R-32 allows them to design very efficient heat pump equipment that can provide reliable year-round comfort. This makes it especially promising for modern PTAC heat pump designs in hotels, apartments, offices and residential buildings.
📈 Property Owner Value Long Term
When evaluating HVAC equipment, the key question is often not, “How much does it cost today?” but rather, “How much value will it provide over its life?”
R-32 has a number of benefits for long term value.
Its expense reducing operating characteristics can help. Its lower GWP is consistent with environmental goals. This rising acceptance within the HVAC industry is in accordance with the upcoming market trends. It is compatible with advanced system designs, which helps manufacturers continue to improve PTAC performance.
Together, these aspects create a compelling argument for property owners looking for equipment that provides comfort, efficiency, sustainability and longevity.
As HVAC technology continues to evolve, refrigerant selection is becoming an increasingly important part of the purchasing conversation. Buyers who understand the benefits of R-32 are often in a better position to evaluate equipment from a long-term ownership perspective, rather than just looking at initial purchase costs.
🎯 Jake's Final Word
This move to R-32 is part of a larger evolution occurring within the HVAC industry, not simply a marketing fad. R-32 is one of the leading refrigerant choices for modern equipment as manufacturers strive for higher efficiency, lower environmental impact and better long-term sustainability.
The case for doing so is especially strong for PTAC systems. It is more prevalent due to its Lower Global Warming Potential , good efficiency characteristics , lower refrigerant charge requirements , compatibility with modern heat pump technologies and the future direction of the industry .
Whether you’re upgrading hotel rooms, renovating apartment communities, managing senior living facilities or choosing equipment for new construction projects, understanding refrigerant technology can help you make smarter decisions.
Also when reviewing the modern PTAC equipment, don’t forget the refrigerant in the system. It might be one of the biggest things that makes things efficient, comfortable, sustainable and valuable for a long time.
Sometimes the biggest innovations in HVAC technology aren’t immediately obvious—but they can make a real difference in the years ahead.
Jake Lawson
HVAC Insights Specialist
The Furnace Outlet
