R-22 "significantly lower pressures" , yeah and equipment that lasted 20-30 years plus
@youarethecreator12 ай бұрын
100% correct
@cliffanderson75442 ай бұрын
Been doing hvac 16+ years now. Still have a 23 year old r22 system that runs perfect. I will run it until I no longer can!!!
@whofixeditanyways2 ай бұрын
@@cliffanderson7544 I just serviced one from 1975. Someone cut the blower cap out and it has been running without a cap for I don’t know how long. The condensing unit is from 1995. Still chugging along.
@marknaravas3182 ай бұрын
The house I grew up In had an American standard that went 35 years till it blew a condenser. The Heil replacement only made it 7 years.
@tristantimmonstt2 ай бұрын
Service three 1995 Lennox 5 ton condensers at a shop and all have the original compressors. They don’t make em like they used to..
@timbrown93052 ай бұрын
A friend of mine is a chemical engineer that lived through 40 years of these changes. He said it is NOT for the environment and never was. Twisted data on the effects of these chemicals was done deliberately. He said these changes keep the industry selling new equipment and the chemical companies like the one he was in management for, making new product.... He was very high up in a company you all would recognize. Our government is not what you think it is.
@GilmerJohn2 ай бұрын
BINGO. Back when the Ozone problem was invented, R12 cost $1/lb in retail consumer sales. The stuff was used, as an example, for BB "machine guns" and to chill glassware for mixed drinks and so advertised on TV. Why so cheap? Off patent. Funny thing, the replacements were only manufactured when the maker paid a license fee.
@footiefan512 ай бұрын
Nope.
@joez.2794Ай бұрын
@@footiefan51 In the the 30 years I've been running my R22 unit, a typical newer system would've been replaced 3 or 4 times. How could the manufacture and disposal of all those POSSIBLY be better for the environment? "Efficiency?" If the new stuff is so much more efficient, how come 15,000BTU is still the max for a 15A circuit? You could get a 15K BTU window A/C that drew 13A in 1985. You'd think we'd at least be up to 18K BTU by now??
@Carlossoto-rg5hhАй бұрын
Damn , I'd like to hear what your friend has to say. That's wild to hear as a young HVAC technician. Thanks for sharing.
@mikafoxx2717Ай бұрын
Ozone problem wasn't invented. A kind reminder that the CFC's were patented things that drove up the cost compared to the older non-patented refrigerants of the 30's like sulphur dioxide or.. r290. They banned those in favor of CFC's because they were safer - according to DuPont's lawyers. Anything they can patent and do. 1234yf is the new patented expensive stuff. R290 or R600a at least isn't patented and I think R32 is also out of patent. @@GilmerJohn
@comeasyouare454521 күн бұрын
It's all about the price. Nothing to do with what it actually affects. Glad you brought up propane.
@smokeyray501725 күн бұрын
In 1979 at the tender age of 19 I went to Frigerator College. Ended up being a welding and rigging contractor for 30 yrs, but I can tell you all my ACs work perfectly and all of my vehicles are as cool as the other side of the pillow including my 64 Econoline (dual evaps) and my 32 coupe. AC has been good to me.
@blondestraingerАй бұрын
Go Chevron Deference ! This is crazy that we keep changing rules when patents run out
@drewtronics7406Ай бұрын
Good to see someone gets it. The excuses for doing this, are just that, excuses. Gwp, ozone depletion, what a massive scam.
@my_channel_44Ай бұрын
@@drewtronics7406The Ozone cycles in and out and has nothing to do with R12.
@drewtronics7406Ай бұрын
@@my_channel_44 😂😂😂😂
@troydspain1099Ай бұрын
Happens with pharmaceutical world as well
@drewtronics7406Ай бұрын
@@troydspain1099 💯!!!!
@mikesimmonds20859 күн бұрын
Hi this is Mike Simmonds. I. Worked with you at delair I like your casts . I'm 65 now and Still learning. You are never to old.
@howardkeil152622 күн бұрын
Well hopefully the chevron case will significantly affect the EPA being able to make declarations about what can and can't be used
@youarethecreator12 ай бұрын
HONEYWELL EXPLOSIVE ORDNANCE DISPOSAL (EOD) SUIT FOR HVAC TECHNICIANS AND INSTALLERS. $1899.95
@joez.2794Ай бұрын
*MANDATORY
@chucksmoko5348Ай бұрын
Explosive vs flammability are not one in the same.
@jcaleca60Ай бұрын
E O.D. 😂
@rwcastoАй бұрын
@mubaddagammoh491224 күн бұрын
Lol there will be less Juan and Jose working on the side coz will probably explode
@blondestraingerАй бұрын
Burned out terminal on the compressor that loses its complete charge with a shower of sparks … Boom
@jessemackenzie651623 күн бұрын
Industrial generator tech here/ I have to say I enjoy your teaching style. I do not work in this field but your teaching style makes me want to listen. Be
@TgWags6927 күн бұрын
Propane with something like 10% iso butane was supposed to be a pretty much drop in for R12. However there used to be significant fines for doing it
@s.j.58502 ай бұрын
You really know your stuff Bryan. We appreciate you explaining the significance of the new refrigerants that will become the industry standard.
@antonioharris-g.a.-hvactec49972 ай бұрын
The two teachers taught well as usual.The class was interesting to learn from.The best class to teach with no mental health distractions with skybox proofreading.#GreatJob!
@scottritchey74922 ай бұрын
I'm v. To
@timrob04202 ай бұрын
You are truly a blessing to this industry
@chucksmoko5348Ай бұрын
The SCOTUS RULING striking down Chevron Deference may affect EPA powers going forward.
@hallkbrdzАй бұрын
Let's hope so. Common sense should prevail to keep costs low for consumers, such as removing the leak repair requirements. None of these refrigerants are an issue with the environment, they are all about selling products covered by patents for maximum profit.
@my_channel_44Ай бұрын
It's cancels them. EPA cannot write rulings that have legal effect.
@soundspark18 күн бұрын
@@hallkbrdz I'm guessing you consider Thomas Midgley Jr to be a hero?
@jakbo_11 күн бұрын
Unfortunately I I think it would be too late to go back . All of the manufacturers all of the supply houses everyone is basically converted over to manufacturing and selling these new refrigerants. Except for the contractors who actually have to deal with this crap . All these extra sensors and Manufacturing lines and all this extra crap that we need is going to raise the cost of a residential system 30% at least. These big shops are going to start charging $50,000 for these freaking systems
@hallkbrdz10 күн бұрын
@@jakbo_ Time to produce our own open source designs. I'm tired of this rat race.
@timothyvaughn8482Ай бұрын
I'd love to work for your company the training you provide to your employees is awesome most companies could care less.
@joez.27942 ай бұрын
I'm in IT - watched the whole thing. You're a great presenter.
@InsideOfMyOwnMind2 ай бұрын
This looked like perfectly done presentaion. It would be facinating to see some of the notes that the people who were there took.
@bikerbobcat2 ай бұрын
I've spent the last couple of years doing commercial almost exclusively and only heard a little about this changeover, so was very nervous, but this video is very helpful. Thanks so much for great information and presentation, as always.
@joshuaricks77302 ай бұрын
55:00 You will eventually will have to have some type of mitigating active system in storage areas with sensor and a means to ventilate.
@brycelawmaster37462 ай бұрын
changing refrigerant has nothing to do with the environment and all about money
@SuperS055 күн бұрын
10:46 cuba did this at a national level during the r22 phasedown. They had some issues when instructions weren't followed. R290 is starting to make a comeback in some appliances.
@noneofyour2827Ай бұрын
I always learn a little more each new video, THANK YOU !! I have been doing this crap for 40 years, it's always nice to keep up
@garypoplin45992 ай бұрын
32:03 We used nail plates on wooden studs where NM cable is run in the wall closer than 2 3/4” to the wallboard (I think that’s even in chapter 70 of the NFPA code). We affectionately called them kickplates. But that was years ago, now.
@robertcook7886Ай бұрын
Great presentation…. Very in-depth knowledge of materials and actual repair/installation experience is very obvious and makes the training very understandable and relative….. Bob
@darylfortney80812 ай бұрын
Can’t wait for this transition to complete so I can finally upgrade my r-22 seer 10 unit from circa 2000. Skipped 410a entirely 😅
@darylfortney80812 ай бұрын
Sounds like a guaranteed and great investment just stocking up on 410 right now. Might sell off some stocks and buy a warehouse of 410 tanks.
@darylfortney80812 ай бұрын
You forgot to mention no smoking while working on a system
@mikafoxx2717Ай бұрын
That just makes it easier to find the leaks. @@darylfortney8081
@joez.2794Ай бұрын
Why wait? Propane is available now, and is an upgrade in efficiency and performance to boot!
@darylfortney8081Ай бұрын
@@joez.2794 because they haven’t even really begun to release all their new models yet.
@acservicetools2 ай бұрын
Good job Brian. The regulations is almoust the same in Europe to. Love your videos. Learn a lot from . Ciao
@josephaleman29156 күн бұрын
Great Information! Thank you for the class..
@myerschase23Ай бұрын
Great crucial information explained very well. Thanks for your research and sharing this to help with the upcoming changes. This info is limited and we know we have a great deal of trial and error coming with these changes so this helps tremendously. Thank you
@dbz580811 күн бұрын
Nothing beats a Blue Rhino "R290" top off of a R22 system. True drop in right there 🤣
@youarethecreator12 ай бұрын
Here is some scientific information that should be taught: A2L laboratory testing was not within the stoichiometric combustion range of the A2L Gas. This gas is combustable in concentrations of less than 13% at room temperature and normal atmospheric pressures. See the MSDS: "Flammable gases, Category 1 Gases, which at 20°C (68°F) and a standard pressure of 101.3 kPa (14.7 psi): (a) are ignitable when in a mixture of 13% or less by volume in air; or (b) have a flammable range with air of at least 12 percentage points regardless of the lower flammable limit.
@mistermac5613 күн бұрын
Extremely well presented, valuable info Bryan.
@anthonygonzalez74885 күн бұрын
The instructor says that r-454 b is a , " mildly " flammable refrigerant, although the msds says that r-454 b is an extremely flammable refrigerant and that the gas can be explosive when it's concentrated in an enclosed space.
@HVACS4 күн бұрын
Mildly flammble is the actual ASHRAE designation
@brewaz2 ай бұрын
Your presentation is very informative and easy to understand thank you for sharing!
@Dark_Knight_USA17 күн бұрын
Greetings: I miss the days of Servel and sightglass days. Fortunately, some R still around. Thx 4 the share. Bsafe
@Gary-ts6dhАй бұрын
32:09 - I think it's called a nail plate in the Code; but, it is affectionately known as a "kickplate" in the electrical trade. We use them on wood studs with NM cable running closer than 2 - 3/4" to the rough wall.
@treefrogs289423 күн бұрын
In the early stages before recovery was introduced, I was recovering gas in the Caribbean to save money and reusing back the gas before mainstream become a recovery requirement. I've been doing refrigeration since I was 14 years old with my uncle And that she's the one. I am 54 years old now
@stephennichols481517 күн бұрын
I have always cut out components especially driers because when you heat up a drier it will release any moisture in the drier
@juanarboleda2 ай бұрын
Master Class, Thank you 🙏
@WadeSanchez-hw4zpАй бұрын
I really appreciate these videos
@jeremywallace596120 күн бұрын
We used to put propane in R-12 cars back in the day.
@olsmokey525627 күн бұрын
Did after market automotive A/C yrs back and moved on to other things, so I did have my certificate for refrigerant handling etc,.. in the early 90's when 134a was fairly new to replace r12,there was a gas from a Chinese chemist called GU 2015. it was MORE efficient than 12 and was non cfc gas. Magic stuff. But 134 seemed to be the biggest thing on the market and Dow AND Dupont were cornering that market. We did buy some 2015 and used it for retrofits and customers were really happy with it. It was a straight replacement for 12. I heard of some shops replacing 12 with propane and I thought how crazy is that ?? Flammable refrigerant?? I bought a small window ac unit for my apt, and IT has flammable refrigerant. Crazy
@davec4818Ай бұрын
“What do the kids say today”. Got me 26:47
@RETread-xh6fr2 ай бұрын
Not to get political but if you don't like all these tyrannical mandates, vote very carefully in November.
@zwhitehead40324 күн бұрын
Genuinely curious if there's something I missed (hoping there's specifics behind this comment) what rules were rolled back under DTs EPA that helped small HVAC businesses? As far as I know, it was just stuff that helped massive corporations. Full disclosure, I'm a 12 year resi/comm/light ind electrician that genuinely hates all politicians equally. Talk me out of voting for RFK, go 😂
@josiah131116 күн бұрын
Asking the general population to vote for people that know even less about HVAC/R stuff than the general population may lead to disappointing results. Sucks when your industry doesn't get the same government subsidies as the green energy industry, which so happens to flip out over certain refrigerants.
@E.Asinus6 күн бұрын
I love hvac techs acting like a flammable refrigerant is the biggest fire hazard when they have inch + diameter gas lines that just push in an unlimited amount of a flammable gas..
@anthonylosego22 күн бұрын
It's also good to cut out a filter dryer so you don't push captured moister back into the system. But also good for A2L. So win win.
@frankblankenship30262 ай бұрын
Great presentation, thanks
@treefrogs289423 күн бұрын
If I have a residential air condition and it's operating with propane freon, I will put in a suction solenoid a liquid solenoid at the The evaporator together with a propane detector when it detect a leak is shut off. The solenoid is shut down the compressor
@fiehlsport22 күн бұрын
Propane Freon 😂
@antoniogoober25 күн бұрын
Tec bell. I agree R-22 was fine but they feel they need to change things that don’t need fixing.it’s like the old saying if it’s not broken don’t fix it!!!!
@stevieb03196916 күн бұрын
Why does the vacuum pump have to be A2L certified if the system is empty? Just a crazy question for thought.
@carlmanis87923 күн бұрын
Just to replace AC in the future in a customers house with your brand. You may have to carry 3 different gauges. 3 different recovery bottles. 3 different vacuum pumps. 3 different recovery machines. That at least $6000.00 per truck just for AC just to work on any equipment.
@danidoom6662 ай бұрын
Thanks for making these videos!
@jakbo_11 күн бұрын
The thing I'm worried about is that most the contractors in our trade are not doing things properly now. And now we're going to put flammable refrigerants inside people's homes that requires a lot of extra preparation in precautions when most guys in our trade don't even read the freaking manual on the equipment they installed
@treefrogs289423 күн бұрын
Get rid of the capacity system on the compressor. Use a inverted system slow gradually. Startup also it will reduce electricity consumption. They already have it on split heat pump unit. Make it refrigeration simple. The mechanic going to be safe. The homeowner going to be safe
@deek79120 күн бұрын
Anyone that's not afraid of propane, to a reasonable extent, doesn't respect that it can absolutely do major harm. Not respecting that fact can lead to carelessness and a higher probability of a catastrophic event. I'm not saying no one should work with it but we should all give it the respect that it demands because it can 100% result in death and property damage. Everyone should have a certain amount of fear to preserve the respect it requires.
@tommygonzales331623 сағат бұрын
A really strong magnet will prove there's a steel striker plate when covered with sheet rock.
@kevinroberts781Ай бұрын
I use R290 in my 20 year old R22 system. It's not as efficient but it's close enough to not matter.
@jesseanderson46122 ай бұрын
Is there going to be a rule about sitting the condenser 10feet away from the home?
@HVACRTECH-832 ай бұрын
Lol no
@youarethecreator12 ай бұрын
Body Armor and helmets will be required
@EarlHaywardАй бұрын
Packaged system (no line set), 12 feet away from combustibles, solar powered, can only be installed and serviced by those who are EPA608+A3++A2L certified who are also members of the local union authorized to perform such work, used to chill water (special water subject to a special tax), that can then be piped into an air handler (also only solar powered), which provides you to be compliant with upcoming 2026 cooling regulations …
@anonsoc442124 күн бұрын
I'm not sold on the "don't unsweat" requirement. If we've already recovered the refrigerant and opened the system to atmospheric pressure, in my opinion at that point if you're comfortable brazing in new components you should be safe to unsweat existing components. If unsweating is so dangerous then we should all be using ProPress fittings.
@tobiaszkucharczyk85952 ай бұрын
10 years ago r410a
@treefrogs289423 күн бұрын
My dryers are flare dryers and the reason why it is is it's much easier to uncrack a nut. If you worry about the leaks on the flare, put loctite Why they don't do the same on the compressor except the discharge line
@treefrogs289423 күн бұрын
We can solve that problem with the lines in the wall to prevent that problem. Just like how they use electrical pipes, double shielded or even you could probably use green Field protection but you want to keep the gas flowing if there's a leak from one end of the tube out the other end of the tube on the double venting a line within a line like a channel. We can move the gas outside the building
@treefrogs289423 күн бұрын
Once again if you have a propane air condition or refrigeration and the unit is each outdoor I will implement a suction and liquid line solenoid together with a propane detector, a high and low pressure control will be required as normal wire into the system
@SuperS055 күн бұрын
5:33 in Canada we've had to repair all leaks for a very long time, along with recovery (and the associated logging) I've honestly lost count on the number of refrigerants I've worked with. This phase down won't change much for me.
@TerryFrenchyАй бұрын
Always awesome I formative videos. Thanks!
@danielwalker1922Ай бұрын
Lets go back to r22
@treefrogs289423 күн бұрын
Propane air condition chill water system will be an excellent choice. I think personally anything 5 ton and up should be a mini chill water system with propane or glycol cooling instead of water oh maybe Roddy to coolant like from a car to replace the water. This distance should be under 100 ft
@keithb26962 ай бұрын
Has anybody noticed a lot of 5 to 10 year old evap coils that are leaking. Especially the aluminum coils. Are they going to start building the equipment better?
@Damien5677772 ай бұрын
higher pressure refrigerant (r410/R32) reducing equipment life and then race to the bottom on price means manufacturers compromising on copper quality.
@smacleod692 ай бұрын
No, manufacturers are not building equipment better. New coils are micro channel.
@mikafoxx2717Ай бұрын
@@smacleod69It's for higher efficiency, they need more cleaning at least.. but they did microchannel back then too.
@smacleod69Ай бұрын
@@mikafoxx2717 Thats the biggest crock in HVAC history. They are not making micro channel for efficiency. Micro channels use less metal to make For the so called carbon foot print crap.
@abtechgroup7 күн бұрын
great course
@jamesbooth33602 ай бұрын
FJB and his EPA! They are returning the Southern US back to hard living. Low lifespan equipment and high electric costs are making AC unaffordable.
@grashoprsmith2 ай бұрын
Bro, you lack critical thinking skills. I feel sorry for you
@jamesbooth33602 ай бұрын
@@grashoprsmith Why don't you explain it to my simple mind?
@grashoprsmith2 ай бұрын
@jamesbooth3360 the same issues existed regardless of who the president was or is.
@jamesbooth33602 ай бұрын
@grashoprsmith Now, who lacks an objective view of reality? I feel sorry for you.
@grashoprsmith2 ай бұрын
@jamesbooth3360 equipment didn't magically last longer 4 years ago under trumps epa. This stuff was in process under the orange narcissist's epa, too. Corporate greed is the reason stuff doesn't last as long. Couple that with smooth brains like yourself doing bad installs.
@treefrogs289423 күн бұрын
With the propane refrigerant, I see chill water system will be a very big economic business. Instead of water, it will be coolant to compensate Big Freon charge equipment
@treefrogs289423 күн бұрын
From me personally, any client of mine in stolen a 5-ton unit. I will convince them to put put in a chill water system replacing the water with coolant using the system almost like a pool heater, heating and cooling. This will solve a big headache with the flammable refrigerant
@brenninwatts12492 ай бұрын
The part about not unsweating anything and to cut it out because of residual refrigerant in the lineset. Does this apply for example if I am changing a filter dryer, compressor or evap coil and I have the system recovered and shraders pulled and have nitrogen flowing? I would thing the nitrogen would have pushed any residual refrigerant out including displaced the oxygen to keep anything from igniting.
@matth.4932Ай бұрын
Does R22 or 410A produce phosgene gas if exposed to a torch, during a compressor "unsweating" for example? Keep getting mixed opinions out there. Thank you for such informative videos, keep up the great work!
@stephennichols481517 күн бұрын
That's what I was told it's just like mustard gas used in the military
@Wade62422 ай бұрын
Government redistribution of wealth
@kennethbubser96012 ай бұрын
Can we sue epa for all the different refrigerants we breathed in. I got r12 22 410a 134 407c in my lungs every time I disconnect my gauges. My lungs are running on mixed refrigerants. Thanks Epa
@my_channel_44Ай бұрын
😂 does that affect your freeze point?
@kennethbubser9601Ай бұрын
My saturate lung temp is 45 degrees
@stephennichols481517 күн бұрын
What are you breathing when you are soldering and the refrigerant is In the atmosphere and flame burns the refrigerant and creates a gas that is very bad for you to inhale
@user-bw6xr8lg8y11 күн бұрын
What happens if mitigation sensor fails or blower fails will the concentrated leak in the evaporator coil become dangerous. Is there an audible alarm in this situation.
@redneckways1617Ай бұрын
As an example…. Flour in dust form is an explosive….
@adambarrett32962 ай бұрын
You're not supposed to sweat the filter drier off but it's okay to braze it back on?
@HVACS2 ай бұрын
Yes, you are flowing nitro at that point You could flow nitro while you unsweat but pulling apart under flow is still not a great idea
@stephennichols481517 күн бұрын
You release any moisture in the drier when you heat it up and technicians start trying to remove it before it's hot enough and it's not good for the tubing
@fvrrljrАй бұрын
in my 60's i always took pictures of my work goldsmith / master jeweler 57 yrs experience photovoltaic / solar thermal technician (not NABCEP certified) not necessary for me DIYer in other fields classic cars etc. love doing the work myself, yes i'm a cheap bastard *enjoyed watching this video in it's entirety*
@GilmerJohn2 ай бұрын
Because of the anti-R12 histeria, most consumer aerosol cans use flammable propellants. Even/especially food products often use flammable propellants. Inhalers are much more expensive and dangerous. But that's OK.
@joez.2794Ай бұрын
I just can't get over the fact we could've skipped R410A altogether, and even by THEIR measure the environment would've been better off. It makes more sense to just go back to R-22 at this point, and we know it.
@blondestraingerАй бұрын
@@joez.2794yup that’s what we have been saying for many years
@rolandcouillard41608 күн бұрын
R-12, R-22 were developed to replace the dangerous LPG refrigerants. Follow the money.
@GMBazАй бұрын
Della and Senville are selling R32 mini splits.
@dayjeremyАй бұрын
Now that the US Supreme Court has overturned the Chevron Doctrine this phase-out is unenforceable. The EPA no longer has authority to ban anything without the explicit approval of Congress through legislation.
@gregorymalchuk272Ай бұрын
Thank God! We need to run with this an start suing over all of these illegal regulations! Hopefully we can also prevent the EPA from stealth banning the internal combustion engine with fuel economy standards.
@a94cobraАй бұрын
They still have authority until it's challenged in court. No chevron , almost guarantees a win.
@soundspark18 күн бұрын
@@gregorymalchuk272 Would you say the same thing if sunscreen were phased out and you had to reap what you sowed with skin cancer?
@swainer8014Күн бұрын
@@gregorymalchuk272conspiracy theory much?
@gregorymalchuk272Күн бұрын
@@swainer8014 It's basically impossible to get a conventional ICE vehicle with modern safety standards (and weight) much above high 30s mpg. So yes, the most recent round of ratcheting fuel economy standards basically is a stealth ban on the internal combustion engine.
@bobanderson1727Ай бұрын
Great information. Thanx
@timthomas3533 күн бұрын
Can we still blow out drain lines with it?
@jakbo_11 күн бұрын
It's not like any sensors that have been done in the past fail sometimes or anything
@mahmoudalimardani5490Ай бұрын
Thanks a lot for everything
@Ariccio12323 күн бұрын
10:43 fun fact because you're rightfully sweating about telling people about the compatibility of r290 with r-22 systems: Automotive engineers long assumed that flammable refrigerants would unacceptably raise the risk of fire in a crash when compared to r-134a. At some point in the past several years (I don't remember exactly when), someone conducted a test of the safety of an r134a system in a crash and found that the lubricant would start a fire on its own when it got sprayed onto the hot exhaust manifold in a crash. I hope nobody is dumb enough to read my comment and think it's safe to put 15lbs of propane in their residential system - it won't matter how much or how little lubricant is in that system
@NormReitzel22 күн бұрын
So, making a molecule unstable is one path to lower GWP. Anoither path is to make it water soluble.
@franklong6269Ай бұрын
I am a licensed General Contractor in my state, and I find it stunning how you downplay the complexity of this unnecessary refrigerant change. What you fail to understand is that this will add a huge amount of confusion to the entire HVAC industry, and this confusion will generate significant cost increases to HVAC manufacturers, HVAC contractors and the consumer. I have two engineering degrees, and a civil engineering degree from one of the highest rated universities in the nation. I have taken the time to learn the vocabulary necessary to read and understand climate studies. After reading several of the key climate studies that purport to "prove anthropogenic driven climate change," I have been stunned at the overwhelming amounts of junk science these pro-global-warming "peer reviewed "studies contain. The issue is not if the climate is changing because we can easily prove that the climate has been warming for more than 5000 years after the end of the last ice age. The key question is, is if global warming is caused by man-made emissions of greenhouse gases? To address this question we must first be able to accurately quantify how much greenhouse gas emissions are naturally generated by thousands of sources on earth. We currently are incapable of accurately measuring the aggregate amount of non-man-made global warming gases naturally generated. Without an accurate measurement of this variable, we simply cannot prove that anthropogenic emissions are sufficient in quantity to affect global temperatures to the point we can measure a difference. So, based on hard science metrics, we cannot even prove that man-made greenhouse gas emissions are warming the climate at all. This is especially true because anthropogenic emissions of global warming gases are approximately less than 1% of the total generated naturally by the earth. The point is, we don't have any real scientific proof that these coolant changes will do anything to stop the alleged aggregate warming of the earth. Most scientists agree the earth is warming slightly. But they really don't know how much. And climate scientists cannot prove anthropogenic emissions are fueling global warming. This is important because it is almost certain that these coolant changes will not affect the changes occurring in in climate in any way. They are feel-good delusional requirements put together by Democrat climate change cultists, and there is no hard, verifiable scientific proof to back the Biden Administration's hysteria. So the reality is, all of this added complexity and cost is about as productive as a dog chasing its own tail. It accomplishes nothing to help the planet. But even worse, these increases in HVAC costs hurt the poorest of the poor and the middle class. These red-tape regulatory mandates are a useless waste of scarce resources. So I would suggest that you not act like these are not major changes, because they are. Costs are going to increase by 30% or more, and that DOES hurt every American family!
@josepheccles934125 күн бұрын
Let me tell you something, R22 has no more ODP than the counter top behind you in this video. After the half day class, I looked through their science, it was flawed. Clorine gas had a specific gravity of 7. Also, the molocule was stable to begin with. The molocule requires significant amount of energy applied to it to break it down and yeild clorine gas. But if you did reliece the cloring, it is 7 times the weight of atmosphere. It will go deeper in the ground than the freon it would have been relieced from.
@FROG2000Ай бұрын
EPA says R22 is better than A410? So why not go back to R22? EPA is a joke
@blondestraingerАй бұрын
Patents ran out again Really
@Ryansroga-wm6pj2 ай бұрын
Pretty cool thanks for sharing
@christywear527228 күн бұрын
.. curious, why do you not "unsweat" or desolder anymore?
@beachboardfan9544Ай бұрын
What is the best performing refrigerant regardless of safety/enviro?
@dregenius19 күн бұрын
It does seem like the most demanding industrial refrigeration settings tend to use flammable/hydrocarbon refrigerants... i think Dupont played up the dangers to get generations of Americans terrified of it so they could sell their proprietary, worse-performing HFC/FC refrigerants.
@ClapsonchoochooАй бұрын
R12 stuff lasted well too
@jakbo_11 күн бұрын
Does it have a smell like propane
@a94cobraАй бұрын
Good stuff. So...r-32 could go in a 410 system but it wouldnt have all the new safety parts so we shouldn't retrofit?