The Refrigerants Changed. What It Means For Your Restaurant.

AI summary New commercial refrigeration in 2026 ships with refrigerants that didn't exist in most U.S. kitchens five years ago: R-290 propane in self-contained units, CO2 transcritical in larger systems, HFO blends like R-454B and R-454C across the rest. The transition is being driven by the federal AIM Act and it's working as designed. The new refrigerants are more efficient and lower-GWP than the R-404A they're replacing. The catch is that service coverage hasn't fully caught up to the new refrigerant map. Plenty of technicians are certified, but plenty aren't yet, and the gap varies dramatically by market. The procurement implication is simple: evaluate service availability before you buy, not after.

A regional pizza chain in the Carolinas replaced a 14-year-old reach-in freezer in February. The new unit was an excellent piece of equipment. It was more efficient than the old one, quieter, ENERGY STAR rated, and it ran on R-290 propane refrigerant instead of the R-404A their old fleet used.

In April, the unit threw a fault code. The operations manager called their longtime service company. The dispatcher said, "We don't have a tech certified for R-290 in your county yet. We can get you on the schedule for a tech driving in from Charlotte next Tuesday."

Tuesday was four days away. The store cycled product to other locations. It worked out. But the operations manager spent the rest of that afternoon calling six other service companies, building a parallel list of who in their region was certified for which refrigerants, and updating their new-equipment spec to include a question their old spec didn't ask: Who locally can service this?

That question is the one most operators aren't asking yet, and it's the one that's quietly going to define the difference between a smooth 2026 refrigeration buildout and a complicated one.

The Refrigerant Map of 2026

For about two decades, the answer to "what refrigerant is in this unit?" was almost always R-404A or R-134A. Service technicians trained on them. Wholesalers stocked them. The supply chain ran on them.

That changed for a clear reason. The federal American Innovation and Manufacturing (AIM) Act, passed in 2020 and implemented by the EPA on a fixed schedule, has been phasing down hydrofluorocarbon (HFC) refrigerants with high global warming potential. R-404A, long the workhorse of commercial refrigeration, has a GWP of nearly 4,000, which is exactly the kind of number the AIM Act was written to retire.

The result is that new commercial refrigeration shipping in 2026 looks different than it did three years ago:

R-290 (propane) is dominant in self-contained, lower-charge equipment: most reach-ins, undercounters, prep tables, and small ice machines. It's an A3 refrigerant (mildly flammable), which is why charge limits are capped and the certifications are specific.

CO2 (R-744) is showing up in larger, multi-rack walk-in systems, especially for grocery, c-store, and high-volume foodservice. Transcritical systems run at very high pressures, which changes service requirements.

R-454B and R-454C, HFO blends with much lower GWP than R-404A, are common in medium-temperature refrigeration and air-cooled condensing units. A2L classification (mildly flammable, less so than R-290).

R-448A and R-449A appear as transitional refrigerants in some commercial racks and reach-ins, especially for retrofits of legacy systems.

This is the right direction, environmentally and often operationally. Many of the new refrigerants are 5 to 15 percent more efficient than the R-404A they replace. ENERGY STAR programs prioritize them. Utility rebates favor them. Total cost of ownership over a 10-year asset life usually pencils out better than the old standard.

The transition is real, ongoing, and on the whole, working. But the part of the system that adjusts slowest to a refrigerant change isn't the manufacturers. It's the service network.

Why the Service Network Is Catching Up Unevenly

Service technicians need three things to work on a new refrigerant: training and certification, the right recovery and charging equipment, and access to the refrigerant in their wholesaler's stock. All three are catching up, but at different speeds, in different markets, and in different segments of the service industry.

Certification takes time and the requirements differ by refrigerant. Every commercial refrigeration technician working with refrigerants needs an EPA Section 608 certification. For R-290 and other A3 (flammable) refrigerants, many states and most manufacturers also require additional flammability-handling training. For CO2 transcritical, the high-pressure systems require specialized training that's typically done through manufacturer-led programs. Most major service companies have invested in this; smaller and regional service shops are doing it at their own pace.

Recovery and charging equipment is a real capex line. A service company that's been running on a fleet of R-404A recovery machines doesn't just push a button to start servicing R-290. They need separate, properly-rated recovery equipment for flammable refrigerants. Same story, with different specifics, for CO2 and R-454-family refrigerants. National service organizations have been investing in this for two or three years. Smaller regional shops are working through it.

Wholesaler stock follows demand. Refrigerant wholesalers stock what their customers buy. In markets where R-290 and R-454C equipment have been going in for a couple of years, local stock is fine. In markets where the installed base is still mostly legacy R-404A, the new refrigerants are still being routed in from regional distribution centers.

The result is that the service network is uneven by geography rather than universally behind. In and around major metros, with high concentrations of national and regional service companies, service coverage on new refrigerants is generally solid. In secondary and rural markets, the pool of certified technicians and properly equipped service trucks is thinner, for now. The gap is closing, but on a market-by-market timeline, not a single national one.

Why You Can't Win on Habit Alone

The procurement workflow most operators have used for a decade is: spec the equipment, call the dealer, place the order. The same service company that has worked on your last six walk-ins will work on this one. The same wholesaler stocks the refrigerant. Nothing about the install changes the operational profile of the unit.

That workflow is showing its age in 2026, for three reasons.

Your existing service company may or may not be certified for what you're buying. Most are working on it. Some are fully covered. Some aren't yet. Assuming coverage based on a long relationship is the kind of assumption that gets tested at the wrong moment.

Spec sheets often don't lead with refrigerant. A reach-in spec sheet has cubic-foot capacity, door configuration, compressor location, and amperage near the top. Refrigerant type is usually further down. Operators reviewing quotes side-by-side often don't notice that two of the three options ship with different refrigerants until install.

Service availability isn't on the quote. A vendor quoting a piece of refrigeration generally isn't surfacing local service certification or wholesaler stock for the refrigerant. That's an externality from the vendor's perspective. It's not from the operator's.

If you can't rely on habit, can't rely on the spec sheet alone, and can't rely on the quote to surface service availability, what does the new procurement workflow look like?

Three changes.

Lever 1: Refrigerant-Aware Sourcing

The first change is small but matters: refrigerant type belongs on the short list of decision criteria, alongside capacity, configuration, and price.

In practice, this means knowing what's in the unit before you sign the PO. For most reach-ins and undercounters in 2026, that's likely to be R-290. For larger and air-cooled systems, it's more likely to be R-454B/C. For multi-rack walk-ins and high-volume systems, CO2 transcritical is increasingly common. None of these are wrong choices. They're just different choices, each with different service-network implications you'd rather know upfront.

How Backhouse helps

Backhouse surfaces refrigerant type at the quote stage across every refrigeration SKU on the platform, so operators see what's actually in the unit before they decide. The refrigerant goes from a buried spec line to a visible part of the comparison, which is the prerequisite for the next two levers.

Lever 2: Local Service Validation

The second change is the one that prevents the Sunday-morning surprise. Before the PO goes out, validate that at least two service organizations in your market are certified and equipped for the refrigerant in the unit you're buying.

This used to be a moot question because R-404A was universal. It isn't moot anymore. A quick check looks like:

Confirm your primary service company's certification status for the specific refrigerant

Identify a backup service company in your market that's also certified

Confirm that local refrigerant wholesalers stock the refrigerant (or that your service company has reliable access)

For multi-unit operators across regions, map service coverage by location. Gaps will be regional, not uniform

It's a 30-minute step that saves the four-day wait when a unit faults out on a holiday weekend.

How Backhouse helps

Backhouse doesn't validate which local techs are certified for which refrigerants. That step belongs with the operator and their service partners. What Backhouse does is make sure the operator knows the question needs to be asked, and what specifically to ask, before the PO is signed. Surfacing the refrigerant on the quote and flagging the service-network considerations turns a discover-at-install problem into an evaluate-before-you-buy one.

Lever 3: Total Cost of Ownership Across the Refrigerant Lifetime

The third change is longer-horizon: the price on the quote isn't the price of the unit over its life.

New-refrigerant equipment is often more efficient, meaningfully so. R-290 self-contained units commonly run 5 to 15 percent lower energy consumption than the R-404A equivalents they replaced. Utility rebates available for the new refrigerants can recapture another portion of the upfront cost. Over a 10 to 15-year asset life, those numbers matter.

At the same time, service cost dynamics during the transition can run higher in markets where certified tech availability is thinner: premium for off-hour calls, longer drive times, higher refrigerant cost while the wholesale supply chain catches up. These are temporary effects, but they're real, and operators planning capex over the asset's full life should factor them in.

Net: in most markets and for most operators, the TCO math favors the new refrigerants comfortably. It just isn't as flat a comparison as "the new unit costs X dollars and uses Y watts."

How Backhouse helps

Backhouse layers in efficiency data and rebate eligibility alongside the quote, and flags the service-cost considerations operators should factor into their own TCO analysis. The math itself still belongs with the operator and their finance team. The platform's role is making sure the inputs are visible and the considerations are on the table, so the decision is on TCO, not just the purchase price.

The Bottom Line

The refrigerant transition is a structural change in commercial refrigeration, and it is on the whole a positive one. The new refrigerants are more efficient, lower-GWP, and increasingly favored by utility rebate programs and ENERGY STAR. The service network is catching up, and in most major markets, it has caught up.

The risk isn't that the transition is going badly. It's that the transition is uneven enough that operators who buy on autopilot, same workflow as 2019, occasionally end up holding a fault code for four days while the certified tech drives in from out of region.

You can't change the refrigerant in the unit. You can ask three questions before you buy: What refrigerant does this unit run on? Is my service network certified for it? Is my backup network? The operators who treat those as part of the spec, not part of the install, are the ones for whom the transition is invisible.

Frequently asked questions

What is the AIM Act and why is it changing refrigerants? The American Innovation and Manufacturing Act, passed in 2020, directs the EPA to phase down high-global-warming-potential refrigerants on a fixed schedule. R-404A and similar HFCs are being replaced by lower-GWP alternatives: natural refrigerants like R-290 (propane) and CO2, and HFO blends like R-454B and R-454C. The transition is ongoing through the late 2020s.

Is R-290 (propane) safe in a commercial kitchen? Yes, with appropriate equipment design. R-290 is an A3 refrigerant, mildly flammable, but commercial equipment built for R-290 uses sealed, low-charge systems specifically engineered to keep flammability risk in check. UL, NSF, and EPA standards govern charge limits and equipment design. The safety record across hundreds of thousands of units globally is strong.

Will my existing service company be able to work on a new R-290 walk-in? Many service companies are already certified and equipped for R-290 and the other new refrigerants. Many are still working on it. The pool is uneven by market. Before you commit to a piece of equipment that uses a new refrigerant, confirm coverage with your primary service company, and ideally a backup, in your market.

What's the difference between R-290, CO2, and R-454C? R-290 is propane, used mostly in self-contained units like reach-ins, prep tables, and small ice machines. CO2 (R-744) is used in larger transcritical systems, common in walk-ins and high-volume refrigeration. R-454B and R-454C are HFO blends used in medium-temperature and air-cooled systems. Each has different service requirements, charge limits, and certifications.

Are the new refrigerants more energy-efficient? Generally, yes. R-290 self-contained equipment is commonly 5 to 15 percent more efficient than the R-404A equivalents it replaces. CO2 systems can be highly efficient in cold-climate operation. R-454-family refrigerants are roughly comparable to or slightly better than the HFCs they replace. ENERGY STAR programs and many utility rebates favor the new refrigerants.

Buy refrigeration with the full picture, not just the spec sheet

Backhouse surfaces refrigerant type and total-cost-of-ownership considerations alongside every refrigeration quote, so operators see what to evaluate beyond the headline price. Local service validation still belongs with the operator and their service partners. Knowing the right questions to ask, and when to ask them, is the difference. Book a demo to see how procurement looks when refrigerant and TCO context are part of the quote.

Sources:

EPA: Phasedown of Hydrofluorocarbons

Commercial Refrigeration Buying Guide (Backhouse)

Backhouse: Your Dream Equipment Procurement Assistant