If a technician has told you the R-410A phase out means your air conditioner has to go, slow down before you sign. The move to newer refrigerants such as R-454B is real, but the most repeated part of the story, a hard January 2026 deadline for homeowners, is out of date. This free book explains what the rules say now, in plain language, from the point of view of the person holding the quote.
The Refrigerant Changeover: A Homeowner's Field Guide to R-410A, R-454B, and What Your Repair Quote Actually Means, by Maurice Johnson. PDF, 85 pages, 22 short chapters and four appendices. Free, one click, no form and no email.
Download the free PDFThe book is also sold in paperback, hardcover and Kindle editions on Amazon. Dallas Air & Heating offers the PDF free because the questions in it are the ones North Texas homeowners face every summer, usually with the house warming up and a decision due in minutes. Below is a summary of what the book covers, the key regulatory facts checked again against the EPA and other current public sources, and what they mean for a house in Dallas-Fort Worth.
The R-410A phase out in four facts
Most confusion clears up once you separate three things the rules treat differently: making new equipment, installing it, and servicing equipment you already own.
- New equipmentEPA rules cap the global warming potential (GWP) of refrigerant in new home air conditioners and heat pumps at 700. GWP measures how much heat a gas traps compared with carbon dioxide. The book puts R-410A at 2,088, so new systems now use R-454B (466) or R-32 (675).
- InstallationThe EPA's own sector table now says there is no installation compliance date for systems whose specified components were all made or imported before January 1, 2025. The final rule came in May 2026 and took effect July 27, 2026, so leftover R-410A equipment can still be installed until stock runs out.
- ServicingRepairing, maintaining and recharging an installed system was never restricted. As the book puts it, a new R-410A compressor or coil can go into the system you own, with no end date.
- SupplySeparately, the AIM Act has the EPA cutting HFC production and consumption to 15 percent of historic levels by 2036 in steps. Fewer new pounds over time means service prices that rise in jumps, not a ban on repairs.
The book also draws the line where a repair turns into a new installation: replacing the outdoor condenser and the indoor coil together counts as putting in a new system, so the rules for new equipment apply. Replacing one failed part is a repair. When a company says a part cannot be replaced because of the phase out, the book's advice is to ask which part and why.
How the rules changed, and what each change means at home
Dates confirmed against the EPA, IRS, NAHB and federal efficiency rules listed in the sources. Rows marked "per the book" come from the book's timeline and could not be re-checked for this page.
| When | What changed | What it means for you |
|---|---|---|
| 2020 | Production and import of R-22 (HCFC-22), the refrigerant in many older systems, ended. | R-22 systems can still be serviced from existing supplies, but a big leak repair deserves a replacement price beside it. |
| 2023 | New federal minimums: split-system central air conditioners installed from January 1, 2023 in the Southeast region, which includes Texas, must rate at least 14.3 SEER2 (under 45,000 BTU per hour). | A new system in Dallas has to meet that floor. Compare SEER2 to SEER2, not to the older SEER number on your current unit. |
| Oct to Dec 2023 | Per the book: the EPA set the 700 GWP limit from 2025, then allowed older equipment to be installed until January 1, 2026. | The origin of the "2026 deadline" still found online. |
| Jan 1, 2025 | The 700 GWP limit took effect for new residential and light commercial air conditioning and heat pump systems. | New systems ship with R-454B or R-32. Your R-410A system keeps running. |
| Dec 31, 2025 | The federal Energy Efficient Home Improvement Credit (25C) covers property placed in service before this date. Per the book, the end date came through the One Big Beautiful Bill Act of July 2025. | No federal tax credit for a 2026 installation. Check your utility instead. |
| May 2026 | EPA final rule, effective July 27, 2026, removed the installation date for systems built from components made or imported before January 1, 2025. | No federal cutoff for installing leftover R-410A equipment. Repairs were never restricted. |
| 2029 to 2036 | Per the book: the HFC allowance drops from 60 percent of baseline to 30 percent (2029 to 2033), 20 percent (2034 and 2035) and 15 percent (2036 on). | The book flags 2029 as the step to watch for R-410A service costs. |
What is inside the book
The Refrigerant Changeover opens with an epigraph from Proverbs 18:17, "The one who states his case first seems right, until the other comes and examines him," and that is the method of the whole book: read the primary rule, then compare it with what is being said about it.
The rules (chapters one to four). How the deadline was set, softened and removed, why the wrong version still sits at the top of search results, the stepped phasedown, and the repair versus installation line. The author calls chapter four the one that saves people money.
The money (chapters five, six, ten and nineteen). Why published R-410A prices disagree so widely: some are wholesale, some are billed to the homeowner, and some bundle labor and the leak search into a per pound figure. The book reports those figures as published, not as its own estimates, and gives three questions that make any recharge quote readable. It also covers the end of the 25C credit and how SEER2, EER2 and HSPF2 ratings work.
Your system (chapters seven to nine, twelve to fourteen, twenty and twenty-one). Equipment lifespans, R-454B versus R-32, sizing with a Manual J load calculation, how a proper leak repair works, simple upkeep, how long R-410A is likely to stay available, duct losses and heat pumps. On sizing the author does not hedge: "Sizing is the thing that determines whether you are satisfied."
Decisions under pressure (chapters eleven, fifteen to eighteen and twenty-two). Choosing a contractor, buying or selling a home with an aging system, what could still change, and the lessons of the R-22 phaseout. The last chapter is written for the system that quits in August.
The appendices. The whole timeline in one place, question lists by situation (low refrigerant, a recharge quote, a repair quote, a new system, financing, buying or selling a house), the conflicting published figures side by side, and where to check each rule at the source.
What to do with your situation
Your system works
The rules ask nothing of you. Keep the filter fresh, book a spring tune-up, and note two things from the label on the outdoor unit: its manufacture date and its refrigerant. Anyone quoting you later will start with those.
It is cooling poorly
Check the thermostat setting and the filter first. If a technician finds the refrigerant low, there is a leak, because refrigerant does not get used up. The book's line for it: a recharge without fixing the leak "is a subscription, not a repair." See AC repair.
You have a repair quote
Get the failed part named and the price in writing. If refrigerant is on the bill, ask how many pounds, whether it is a top-up or a full charge, and whether the per pound price includes labor and the leak check.
You are told to replace because of the rules
Ask the book's key question: "Is this being replaced because the part has failed and repair does not make economic sense, or because of the refrigerant rules?" Only the first is a reason.
Why it matters in Dallas-Fort Worth
North Texas works an air conditioner hard. The National Weather Service office in Fort Worth records an average first 100 degree day at DFW of July 1 and an average last one of August 27. The record is 71 days of 100 degrees or more in 2011, and the longest streak is 42 days in a row, in 1980. Long run times are when tired parts quit, and late summer is when replacement decisions get made fast.
That is why the book's planning advice fits this area so well. Its last chapter suggests that if an older system fails in August and the fix is modest, a "bridge" repair can buy time to replace it in spring or fall, with several quotes, a real load calculation and nobody waiting in your living room. The author's test for any such repair: ask whether it will reliably get you through the season.
On incentives, keep expectations local and current. The federal 25C credit is gone for 2026 installations. Oncor, which owns the poles and wires across much of DFW but does not sell electricity, runs a Home Energy Efficiency Program with incentives for HVAC replacements, offered through participating service providers when the program is open. Ask the company quoting you whether it takes part, and check the details on Oncor's site yourself rather than taking a rebate figure on a quote at face value.
Safety note. Leave adding refrigerant and finding leaks to a certified technician. The EPA allows only Section 608 certified technicians to buy refrigerant for home air conditioning, and every recharge should come with a leak search. If you smell gas from a furnace, leave the house and call your gas utility or 911 from outside. If a carbon monoxide alarm sounds, get everyone out and call 911.
Ready to read it? The Refrigerant Changeover by Maurice Johnson. Free PDF, one click, nothing to fill in. Please share this page's link rather than the file.
Download the free PDFThe book is general information, not a quote, and it does not replace an on-site look at your system by a licensed technician. Its own disclaimer says the rules it describes have changed more than once and can change again, and it points readers to the EPA's pages, listed below, to check the current version.
- Call any hourAn automated assistant answers (469) 649-7066 and asks whether it is about cooling or heating.
- Describe the problemGive your name, a callback number, your city or ZIP and what the system is doing.
- Get put throughThe call goes to an independent, locally owned heating and air conditioning company, which hears a short summary before it picks up.
- Deal with them directlyThat company diagnoses, quotes, does the work and is paid by you. If it cannot answer, it gets your details to call back.
How this line works: Dallas Air & Heating is a free phone line, not an HVAC company. It answers your call and connects you with an independent local heating and air conditioning company, which inspects, quotes and does the work, and which you pay directly. The line holds no HVAC license and does not repair, install or schedule anything itself. Those companies may pay Dallas Air & Heating a referral fee. You never pay the line. How it works.
Check the license yourself. In Texas, air conditioning and refrigeration contractors are licensed by the Texas Department of Licensing and Regulation (TDLR), and the license number belongs on the company's quotes and invoices. Ask for it and look it up with the TDLR license search (opens in a new tab) before work starts. It is also fair to ask for a certificate of insurance.
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