A2L Refrigerants R-454B and R-32 Explained! Bottles, Changes, Rules, Tools!

In this HVAC Training Video, I Explain the Changes to the New A2L Refrigerants R-454B and R-32! I Explain Why This is Happening in Air Conditioners and Heat Pumps! We Cover How the Bottles Differ, What the Pressures Look Like, the Additional Safety Sensors Required, Tool Updates, and How Procedures are Affected! Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
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[@tedbell4416]

I wonder what the gwp for india and china is?

[@dew117]

It is the same GWP ... And we should have asked USA instead of India or China ..coz they have used R32 for decades. 😂

[@gg-gn3re]

Yea everywhere been using R32 forever, except usa

[@ericspratt3164]

They probably already know the next refrigerant they’ll foist on the consumer in 10 to 15 years.

[@Beastphilosophy]

It's propane or CO2

[@DC-do8vd]

That’s a lot of safety precautions for refrigerants that supposedly “are not really that flammable “.

[@gg-gn3re]

don't huff it and smoke a cig

[@rv10flyer84]

What’s the biggest change? It’s gonna cost consumers a whole lot more money to stay comfortable. Be prepared for another refrigerant and equipment change in 5 to 10 years. It’s all about GDP not GWP!

[@analogmoz]

I'm assuming this applies to the USA only, as most of the world has used R-32 for 20+ years already.

[@TheGhettoLobster]

I can't wait till some customer makes a post about how they remember a tech selling them a new system because "R-22 is illegal and not environmentally friendly" and now the same thing happens to their 410a system. HAH

[@shanegreen268]

Agreed

[@rv10flyer84]

Wait until they start banning all of the PFAS-containing refrigerants, like R-454B. One of the new ones coming soon in the USA.

[@SPUTNIK6996]

GDP over humanity? You are a joke

[@tannersmith7334]

The left hand threads is the biggest slap In the face

[@SuperIcarusman]

It's like when you get a muzzle brake that's M14 X1L and you're like what the hell?.

[@Adam-ul2px]

How much refrigerant will leak out of bottles that people crossthread?

[@twotimes87]

That’s bullshit😂😂😂

[@gavinbarham542]

I think all flammable gases have a left hand thread

[@thomasellsworth2094]

Not gas lines

[@armor1z]

Good video with the information about the refrigerants. I think GWP is a bunch of bs though which isn't AC Service Tech's fault so, dont downvote his video for that guys.

[@Whitey23]

Why is it bs?

[@ericspratt3164]

Sounds like nuisance service calls and extra expense for the consumer.

[@TheGhettoLobster]

Hey but you saved the planet by putting in a lesser GWP refrigerant into your home

[@ericspratt3164]

@@TheGhettoLobster yep... bureaucrats believe my ounce of lost refrigerant will melt the ice cap while industry and 3rd world dump it by the boat load.

[@ericspratt3164]

@@TheGhettoLobster yep, never mind 3rd world and industrial dumping it into the atmosphere by the boat load, it was grandma’s 2.5 ton all along.

[@ernestohernandez7371]

@@ericspratt3164😂

[@basspig]

@@ericspratt3164 I've been saying for years that if the government's really cared about the environment they would have a moratorium on War making. All these wars and all the fires and burning cities probably spews a lot more dangerous chemicals into the air that our air conditioners.

[@ericspratt3164]

Screw this, I’m retiring!

[@Honestandtruth]

😅😂👍

[@hituw2x4]

Seriously!

[@Anonymous_User_Incognito]

No shit - time to semi-retire and become a Comfort Advisor

[@buffalobobbayoushow6040]

I guess I will pull a trailer behind my van to haul all the different refrigerants to the job!

[@Whitey23]

I'm just getting into the business as my father is retiring soon, well f me

[@cpaul57]

In 10 years, they will find more problems with r32/454b

[@harbosonius]

Definitely

[@beachbrettf]

My bet is 2 years or less

[@rv10flyer84]

They already have with R-1234yf (one component in our new R-454B) in Europe! It contains forever chemical or PFAS. It’s about GDP in the USA.

[@BertGraef]

EPA bureacrats need to have some work.

[@darriuscole8544]

​@@rv10flyer84 - What is forever chemical?

[@YTsux24-7]

You will be told this summer to lower your AC usage to stop overwhelming the electric grid while being encouraged to drive electric vehicles.

[@johnathancornett9031]

I don't own an electric car but you should realize that A/C usage is a problem for the electrical grid when everyone uses it at the same time during peak hours. Charging electric cars usually isn't a problem as most of them are scheduled to charge overnight during low usage.

[@kissingbanditt]

Why is it in central and south America countries they use their AC day and night. Non stop as a 3rd world region. Yet in canada and US we cant? I feel like taking a few bottles and opening them up to atmosphere. This is nuts.

[@SuperIcarusman]

In Europe they don't even have a lot of AC systems; because of all of what you guys have said, and the information given in this video

[@hosocat1410]

​@@johnathancornett9031 nice thought. But in practice people just plug it in when they get home. Most people don't have it set on a timer.

[@sherwinalvarez7365]

Houston has no power right now.

[@johnjaco5544]

I'm still using and storing My R12 refrigerant, I'm glad I did.

[@broncheemims8493]

Thank you Craig for the information. Please keep us updated.

[@harbosonius]

I've been around long enough to remember the r22 to r410 transition , they said all the same BS back then,just a little less sophisticated. 😂😂😂 And for something that is touted as being a low flammable refrigerant there's sure alot of extra safety procedures involved with these new refrigerants. I also work on residential refrigerators and ice machines which are also already using r600 and r290, but those systems have like 1 ounce of refrigerant. HVAC systems we are talking pounds....I dont worry about 1 oz of semi flammable gas venting in the air, but 6 or 7 lbs?? Yeah, nah.

[@fricktion01]

im not even doubting the science, it's just the little things like the left handed threads and gray bottles that will get annoying. having to double check your hoses are left handed threads or remembering to bring an adapter. double checking the bottles since all refrigerants are gonna be a gray color soon.

[@mandan5]

Craig you rock, don’t stop creating content. I learn a bunch from you

[@acservicetechchannel]

Thanks for watching!

[@user-vr4zm4vk3h]

GWP is the “trust me bro” version of environmental science

[@tedbell4416]

It's so ridiculous

[@TheGhettoLobster]

"Puron" Is no longer acceptable as an environmentally friendly refrigerant. Imagine that. Remember the cute little earth graphic they'd put in the "O" in Puron? Haha. This industry is so stupid now. Every manufacturer grand standing on the "environmentally friendly" mega hoax with oversized condensers, evaps, microchannel, ecm garbage etc. How is it more friendly to the environment if leaks are 20x more common and were creating more waste that just goes into a landfill?

[@zunar_j5_933]

Yup, and when you think about it, all these gas changes disproportionately affect the low-income populations at the end of the day.

[@catmgunjunkie]

GWP = Greta Was Pissed

[@erickvargas5427]

I wonder how they come up with the global warming numbers🤔🤔. A total joke

[@maness2112]

Another refrigerant scam.

[@davidlundy5007]

Absolutely

[@analogmoz]

Another big difference between R-32 and R-454B is 32's much higher discharge temperature requiring a different grade of POE oil, (POE-68,) than the POE used in most R-410/R-454B systems, (POE-32.)

[@brnmcc01]

Sweet, higher discharge temperatures = lower compressor life, and smoked valves. They had the same sort of fun way back in the day trying to run freezers off of R22 because R22 used to be a $1 a lb. Well, at those low pressures, R22 discharge temp went sky high and the manufacturers tried all kinds of stupid stunts like head cooling fans, demand cooling, demand liquid injection etc all of which lower the system efficiency, and use more electricity. Same thing is happening again in places like California that banned R404A and replaced with R448/449A which have the same problems like 32/454B/22. Suprising thing is, R290 (propane) has almost identical pressures as R22, and MUCH lower discharge temps (I can grab the discharge line right off the compressor on a freezer running R290 and not even close to burning my finger). Yeah Propane (R290) is very very flammable, but it has just about 0 GWP, and 0 ODP, and can use normal POE oil or just about any compressor oil will work too, since it's a hydrocarbon refrigerant, I don't see why it wouldn't work great with mineral oil, but POE oil is probably a better compressor lubricant. I think all this stuff is nonsense, and they should just be working to switch everything to CO2 for a refrigerant. It's completely non-flammable, in fact, it makes a very good fire extinguisher, it's cheap, widely available, and can help reduce CO2 in the atmosphere by pulling it out when making liquid air etc. Hussmann already has a high efficiency CO2 system for supermarkets marketed under the Advansor name, I've already seen Coca-Cola and Pepsi display cases and vending machines that say R744 on the nameplate, so it can be done. And in those systems, they just look like a normal refrigerator type of hermetic compressor, copper brazed tubing, condenser coil doesn't look like anything special. The industry should just switch to CO2, and stop it with all this flavor of the month gas stuff. Nobody should have to carry 13 different colored bottles on their service truck, all kinds of different hose adaptors, it already got stupid with the 5/16 flare connections to connect to a mini-split system, and automotive with several different service port connectors. You think a small town car repair shop has the time/space/money to keep 4-5 different recovery machines taking up space? One for R134A, one for R1234YF, and one for R1234ZE or whatever the latest BS FOTM shit is. CO2 is easy, 100 psi low side pressure is good for freezers or low temp, 200 psi for coolers/medium temp refrigeration, 400 psi for high temp/air conditioning. Just don't let the pressures fall below like 50 psi during operation or charging, and it'll avoid the dry ice problem. Yes pressures are crazy high, but with adiabatic supercritical CO2 systems can achieve very high COP values, and have real world higher electrical efficiencies than traditional supermarket refrigerants like 404A, 448A, 449A, R507 etc, plus CO2 is much cheaper and can be delivered in bulk on a truck. The infrastructure is already in place for that is most cities and towns, bars and larger restaurants already get liquid CO2 bulk delivery for keg beer systems and post mix soft drink sales.

[@jayce.1681]

Thanks for everything that you do .

[@dumptrks]

Another great video Craig..great information

[@MattJMT]

Awesome video!

[@gulopac1]

Now the ACs will have another part that can failed, the refrigerant sensor, I wonder if those sensors will last more than 5 years

[@jamminwrenches860]

Or nearby lightning, moisture, spiders, ants even snakes and lizards. All wreak havoc on equipment.

[@gulopac1]

@jamminwrenches860 and duty air filters may cause a problem

[@haroldhayes7541]

love your videos. Thanks for all the info.

[@zekenzy6486]

Another great video as always. Thank you for sharing. Have a nice weekend

[@acservicetechchannel]

Thanks so much! Glad you enjoyed it!

[@pure8091]

Thanks for the video very knowledgeable

[@coldking8383]

Good video ! The end result is higher costs - just more pressure on the less advantaged . We already carry 9 different types……..

[@cengeb]

Perfect, always learn a lot. thanks

[@acservicetechchannel]

Thanks for watching!

[@BertGraef]

The EPA bureacracy is out of control.

[@MsFishingdog]

Great video

[@danlavigueur2648]

Thanks a very thorough explanation on a very complex Refrigerants gaz.😀

[@acservicetechchannel]

Glad it was helpful!

[@sergiomansilla]

muchas gracias¡¡¡¡¡ por la informacion ,excelente video¡¡¡¡ saludos

[@farshadfaridmehr7271]

Usefull like always!

[@maness2112]

Just bring back r12. Quit ripping off people.

[@BertGraef]

Its the EPA..doh.

[@crissd8283]

I'm good with R-12 going away. There is a balance between the environment and costs. It has gone crazy on the environment side and they need to relax those restrictions but I also think R-12 is bad enough to not use.

[@BertGraef]

@@crissd8283 r12 was banned because it was thought it was causing the ozone layer to disappear. Montreal protocol of 1976 ,I think. Well, the ozone layer reappeared, and nobody seemed to notice that maybe the initial science was wrong. Then they started to make up other fiction and banned other refrigerants that took the place of r12. For one reason or another. Its most exasperating to be continually bombarded with new refrigerants, always more costly and less efficient, and for these bureacrats to keep up the alarms and moving the goalposts on everyone in the industry.

[@brnmcc01]

Should just bring back CO2. That was the first refrigerant (besides Ammonia). Heck, even the Titanic had coolers, freezers, and an ice machine all running on CO2. Funny how we went from CO2/ammonia to sulphur dioxide, then methyl chloride (R40), then R12, then R22 (actually R22 is a little bit older than 12 IIRC), R502, then R134A, then this current mess of 410/448/449/407a,b,c,d,f, 454b. Jeez just go back to CO2 permanently. No forever chemicals, it's inert, makes a great fire extinguisher, great energy efficiency, and best of all it's wide available and cheap and can be delivered in bulk as a refrigerated liquid.

[@ro30]

stupid bastards banned the best feons r12 r22

[@deanagresta6335]

I love your videos, so much info. Thx

[@acservicetechchannel]

You are so welcome!

[@enazhyena3006]

why was it when i took my EPA cetifcation last year that they said the GWP for 410a was 1200. then i did a traning class about the new stuff a couple months ago saying it was 2000 and now this video is saying its over 2500? this is starting to sound like bullshit

[@TheGhettoLobster]

Starting? Its been going on since the clean air act of the 90s with the fear mongering of refrigerants and fake science. Thats what happens when you have corporations that have enough money and power to manipulate law makers.

[@edwardgaddis8333]

Bingo!!!!

[@pmichaelhayes]

Looks like shit, tastes like shit, must be shit.

[@YeahYeahItsJustin]

Thanks!

[@Hvac-dude]

Thanku so much this help me alot !!!!

[@acservicetechchannel]

Happy to help!

[@PakMan-wx6ge]

What a great idea to use the same color and pattern on the tanks! Good job guys! 😂

[@ed6837]

Ahh, the good old days. 12, 22 and 502

[@brnmcc01]

And R500 too. Carrier used it quite a bit, and was also used for like Thermo-King truck mounted refrigeration units. R23 for ultra low temp stuff. And you missed R11, on old Trane Centrevac low pressure centrifugal chiller systems on 2400/4160 volts :) fun times. My Dad used to use R11 for a lineset flush or evap coil flush after a bad compressor burnout, best solvent for cleanup ever. Too bad it's toxic and super bad for the environment though.

[@guillermomartinez4371]

Hi Craig. Thank you for this very good information, please if you could inform us more when something new comes up. thanks in advance. Great informative video.

[@acservicetechchannel]

Thanks for watching! Will do!!

[@roy-andre]

It’s a little weird here in Norway .. we’re moving away from R32 because it’s bad for the environment but the big tanker ships are spewing out refrigeration out to like no tomorrow and all “they” care about is the minisplits 😅

[@gtpforever]

What are moving to after r32?

[@brnmcc01]

I've seen ships still using R22, like fishing trawlers have like 4 100 horsepower compressors in the engine room for all the fish freezers. Only newer ones are like R410A.

[@mxc2272]

This is why the poor can't have AC 😥

[@CasinoDuck]

Flammable refrigerants. Yeah sure, should be fine.

[@rv10flyer84]

It’s not R-600 or 290.

[@pmichaelhayes]

@@rv10flyer84 And that is going to make the worry wart wife feel better about it right?

[@daustonian9331]

Ammonia will be back before we’re done!

[@MountainSalsa]

Ty

[@cdubs1723]

I’m getting out of HVAC now. This is stupid

[@gtpforever]

😂🤣😂🤣

[@OneTwoFourFloor]

No you’re not..

[@ar420420]

New tech in the trade “failed refrigerant sensor? Bypassed!”

[@harbosonius]

" Oh shit, it actually reads something called resistance instead of just open/closed...Now I'm in trouble."😂😂😂

[@rv10flyer84]

Especially when it cost $450 to replace.

[@Madmanmarque]

Great, higher cost, less efficient and flammable!

[@Adam-ul2px]

The only system that "pollutes" is the system that leaks. They need to bring back seer 10 coils on new equipment and slap a solar panel on it to offset the energy difference.

[@rv10flyer84]

Thicker, high quality tubing.

[@joebyron9]

@@rv10flyer84thicker tubing has less effective heat transfer, a balance has to be found

[@rv10flyer84]

@@joebyron9 it might slow down the heat up or cooldown time, I don’t know about it being any less efficient. All I know is I rarely changed out coils built before 2000, when executives started outsourcing and offshore our jobs, increasing prices, lowering quality of products in the USA. They are flying around in their $25 million bizjet on family vacations while the consumers are roasting from their broke down HVAC equipment.

[@gg-gn3re]

@@joebyron9 you don't even want heat transfer where the connections are, which is why it's all insulated lmao they can just make larger radiator area or thinner tube for only that area.

[@johno8817]

So now that I have a 410 unit sitting and waiting to be installed I'm pretty much putting in a unit I need to hope will never need to be serviced for 10 years. Wonder if 32 or 454 can be used instead on 1st charge? Worked in the 70's and 80's on chevelle's, lol.

[@harbosonius]

Don't let em fool ya, there will be a replacement refrigerant(s) for 410 just like they've done for 22, however just like the 22 replacements they won't work quite as well.

[@raulrse]

Just stock a couple of 410A jugs, they will weight in gold in 10 years.

[@marioa2524]

The industry needs to pay for real scientists to check there lies.

[@Adamfitz93]

Higher pressures will equal more leaks. Is more leaks really more environmentally friendly??

[@chrisdeanndavison3626]

As far as glide is concerned, isn't a piston metering device pretty much a thing of the past except on older units that would be using 410a or 22 that have minimal and no glide. Unless we are getting into the weeds on trouble shooting, we are going to be charging using sub cooling only. Wouldn't we just use the liquid saturated (bubble) almost exclusively?

[@bairfamilyfarm1336]

This is the first video I’ve seen that actually points out that 410a and r454 have the same base component. We attended an in-person r454 class from Carrier and they didn’t even mention it.

[@zachlafond2652]

About time to just start using the propane bottle off the coleman grill to fill up the minisplit.

[@ultrafaga1947]

We're gonna need a bigger van! 😮

[@Bearcrapsinwoods]

Do you have any books/literature specific to vrf systems?? specifically dealing with 3 pipe's and branch selectors. is their any extra information needed thatis not in your mini split book

[@l.crossjr]

As long as manufacturers and Government are held accountable for fire accidents! Yep we already know Lol

[@Deaftractor]

You keep change Freon often. Only I want to keep lower compressor high side pressure to help reduced hot blow air outside and more cold air lower side. Right now it hot climates. Duh !!!!

[@Quentyn73]

So there's no more using staybrite8 soldering with those systems?

[@takleung7130]

New refrigerants to save the environment but you can use disposable canisters!? Am I missing something?

[@apprenticephil649]

410a price going to the moon 🚀🚀🚀🚀🚀

[@analogmoz]

It's currently 60% of its price in 2022.

[@user-in3hg1sv5x]

When the GWP drops even lower in 10 years the thread on the new bottle will change to quick release 😂

[@rv10flyer84]

Or maybe a one-time six digit approval code at one gps location that you obtain from our greedy, corrupt government that expires in 10 minutes, then the tank gets locked down again.

[@user-in3hg1sv5x]

This makes me want to find another career cause the pay will remain the same with it now being the top 10 most dangerous jobs 😝

[@joebyron9]

OH NO, I HAVE TO READ THE BOTTLE TO DISTINGUISH BETWEEN THE DIFFERENT REFRIGERANTS ; WHAT WILL I DO

[@hla824]

Can someone help me. I install gage on high and low and the showing on the gage it very high on both side. Thank you

[@Adamfitz93]

Also if these are only mildly flammable and from what I hear it’s almost impossible to ignite, why worry about diluting the air due to a leak?

[@JohnSmith-cp2yg]

I definitely want to get into this business I've been working in a Foundry for 21 years and I'm not going nowhere teach me the books are kind of expensive though

[@rv10flyer84]

Find a good two year tech school. Cost is between $10-20K.

[@JohnSmith-cp2yg]

@@rv10flyer84 yeah I see there's a school by me 17,000 well you know I got a daughter I got a wife to take care of I do have a job I've been doing it for 21 years in The Foundry but I can't afford to go back to school just too much money

[@user-zf7vv8lr8p]

So what happens when there is a leak in the evaporator coil in the heating season 💐

[@user-mb5cr1ts8g]

But thanks for the video

[@SnorticusClavicus]

New window shaker I bought has R32. Couldn't believe it.

[@ed6837]

Just bought a new Fridrich to replace my old ac that slides in a wall sleeve, and it is R-32

[@chucklake443]

It’s all bill. Another money maker for the higher manufacturers.

[@rv10flyer84]

It’s all about profits, so that execs can make those big salaries and fly their families around in tax deductible bizjets burning 200-600 gallons of Jet-A per hour, polluting the air we breathe. The same reason most “Assembly” is now being done in Mexico @ $4 to 5/hr!

[@jasonjohnsonHVAC]

Between the 2, I'd rather use 32 as it's a single component refrigerant.....while 454b is an azetropic blend and has a glide. We have already seen these A2L in heavy commercial. 1233zd, 513a, 514a, 1234ze etc etc. HFO and HFC mixtures

[@NewHVACGuide]

My biggest concern is how similar the new jugs look. I predict techs installing r32 in 454b systems or vice versa.

[@anthonygonzalez7488]

Topping off a leaking system with a flammable gas makes as much sense as gassing up my service truck with fuel as gas is leaking on the ground.

[@catwrangler1613]

Wonder how many people and service techs will get hurt or worse, be 4 they switch to something even worse!

[@matthosseini4194]

👏👏👏

[@ibanezortiz4494]

Who got the millions of this?

[@rogersmith8593]

Your elected officials get a chunk

[@gg-gn3re]

R32 been used for decades globally, just not in usa

[@chuckr7871]

Dow chemicals, the patents expired so they use the excuse that it's not good for the environment. I call it racketeering.

[@deanmartin1966]

Damn Craig now I’m confused. Lol

[@acservicetechchannel]

What part are you confused about? I am just teaching on the actual regs.

[@deanmartin1966]

@@acservicetechchannel well those other refrigerants being explosive is a little scary. How many guys are going to purge the lines with nitrogen before they start brazing? I’m glad I’m 58 and only have a couple more years of this. I’ll stick with R410a. Us old people don’t like change. Lol. If it’s flammable enough to need a sensor then I’m out.

[@gg-gn3re]

@@deanmartin1966 it's not close to as dangerous as any gas lines are and those are still not that dangerous. Take basic precautions. At least they're now doing CO2 refrigerant yet which requires ~2000 psi. Now that's real danger. most of you HVAC guys can't even make leak proof connections at low psi.. can't imagine that high.

[@Mr1337sheep]

You dinosaurs are so grumpy. It's a refrigerant that's been used for over 20 years at this point, it already makes up half of R410A. In fact its better than 410A because you don't have to worry about fractionation and charging it only as a liquid, meaning you CAN top up systems that are leaking and you can put back in the recovered charge. That's a huge benefit. The flammability thing is clearly overblown, just stop brazing out compressors, which you weren't supposed to do anyway.

[@chekelley6861]

Boomers will be boomers

[@MAWazaLLC]

We are all getting played.

[@AngelRodriguez-qg5zq]

There is a lot of movement in Europe with 1234yf because it is on the PFAS list.

[@acservicetechchannel]

Yes I certainly heard that! It will be interesting to see what happens in the US in reference to codes with it in the future.

[@gtpforever]

I love seeing all of these people freaking out 😂🤣😂🤣

[@TheKawasakiBros]

shrinkflation has even gotten to refrigerant

[@samfeldman1508]

What’s the GWP of R22? R12?😜🤪

[@Phil-D83]

No r290?

[@chodkowski01]

And in 5 years they will be outlawing R-454B and R-32.

[@edwardgaddis8333]

You got it. It's a scam.

[@josephhass592]

Oxymoron - Partially Flammable. The DOT placard must indicate a 4 for transportation. That is a 0-4 rating. Just treat it like R-290

[@DaCheapChimp]

Could we make the refrigerant more flammable in the future for customers for additional heating needs in the winter. That should really helped the environment i think 🤔🤔🤔🤔🤔

[@zahedaminullah6934]

Thank you Craig for always giving us a heads up, well explained. But I just feel like this is just another money making scheme.

[@timhufnagel7462]

Every time dupont looses its patent. They pass laws banning refrigerant.

[@vick07esco]

Keep flipping the bottle upside down boys, safe bet 😅

[@realSamAndrew]

They already had r32. It worked. They mixed it with r125 to make 410a and got a patent. Now they're banning 410a so they took r32 and mixed it with r1234yf to make r454b, another patent. R32 is a single molecule but it is freely available worldwide. Can't have that, it's too easy and convenient, and we can't charge as much.

[@ryanbrown8398]

They want to have another mixture that doesn't work well, that's why they are going with R-454B. Let's be real.

[@lynncowan9864]

What will cause more global warming - the "potential" of R-410a escaping or the structure fires caused by A2L refrigerants escaping? Just wondering.

[@sentryfe74]

Seems like R32 should be the new standard. Not much more GWP than 454. Much cheaper since multiple companies make it already. And no glide. It’s probably more efficient too. 454b is a PFAS refrigerant. It will be banned in a few years. R32 is not on the list of PFAS refrigerants.

[@Juliorodriguez-xx8gb]

We where told R410a was the environmentally safe refrigerant when ir came out😂😂

[@jacobgriffiths2627]

So dont worry guys its not dangerous at all. But also make sure you heat the compressor, and flow nitrogen for 15 minutes to get any iota of a2L out of the system :D

[@buffalobobbayoushow6040]

I wonder who makes all the money when they double or quadruple the price on refrigerant after the EPA wants to change flavors!!!!!

[@ultrafaga1947]

Why are we switching?? Because it's a big GRIFT