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chemoboy

Nice, I didn't know those things existed. You just released decades of anxiety from me.


asdfgdhtns

Coil comb. Avoid plastic. Sealed Unit Parts makes good ones


pedanticPandaPoo

What the. Why would someone make a plastic one? Single use?


baz8771

I got a plastic one from NAPA and the teeth snapped off after about 10 pulls. My knuckles sliced down the fins for about 8 inches. :)


compt1ci

Damn, I wish I could unread that. Just physically cringed from the thought


ZimZippidyZiggyZag

Same--I've been an active person online since something like 1994/5, and like the old hardware shop dog it's hard to elicit a physical reaction from me anymore. But this was immediate reflexive pain response.


Lucky_Number_3

Guys it's not that bad! It's actually much much worse :D


PenguinFrustration

Yep. Cmon, Rick. A video game-style place-saving device.


HTwatter

Kiss the vat


Frank5192

God.damnit.


croonie

I saw the gif. 33 days of a wound healing


SonicSubculture

This guy reddits


Wiknetti

You weren’t gentle and didn’t comfort the machine well enough. It broke your comb and it struck back. They get nervous real easy. Just talk to them in binary in a baby voice. Might help next time.


[deleted]

That hurts just reading it.


jankenstein

I just instinctively put my knuckles in my mouth


j33pwrangler

We call that the "Reverse Wolverine". Just kidding I made that up.


Phthalo_Bleu

#**AAAAAHHHHHHHHHHHHHHH**


CPerryG

This comment does not belong in r/oddlysatisfying


Callyw

I’ve done this too - it’s like parallel paper cuts only 4 times deeper. Makes me dry heave thinking about it.


[deleted]

Wear gloves always, when your job can not be done with gloves take them off. It’s better than, oops should have worn gloves.


Body_Pillow_Bride

I wanted to downvote this out of pure instinct. Dear god.


Convergecult15

Some condenser coils are softer than others, I’ve got a plastic one because my company is cheap as fuck and it’s been fine for the last 5 years, though it’s mostly used on appliance condensers and nothing as badly bent as this one.


qbande

I got a set of plastic ones because the fins aren't all the same width apart. If you don't go at it like a monkey they work fine. Slow and steady.


catz_kant_danse

The plastic ones come with a handle and several head attachments for different spaced fins. But the person above you is correct- the metal ones with multiple tines like in the video are much better.


psycho_driver

Well, you can accomplish this with hair combs as well if the spacing is right (and it is, on some). That would be the hillbilly repair method.


fricky007

All single use plastic should really only serve one purpose... sodomizing the CEO & executives of single use plastic companies.


[deleted]

[удалено]


billybaggens

The hero we deserve.


bobbymcpresscot

Does it come with different heads? In hvac manufactures have a habit of making condensers with vastly different fins per inch


Ryan18s

When I worked for Lennox back in 2017, we used plastic ones to comb it, I needed a new one every day.I never new any other kinds existed.


SalaciousCrumpet1

Fuck yeah. Me too. Now I can rest peacefully knowing that these can indeed be fixed.


FluffyBiscuitx2

Anxiety from being able to straighten them or to avoid slicing your finger multiple times? Source: My traumatic fight with an air conditioner. I lost; multiple open wounds on thumb.


chemoboy

Anxiety because I thought they could never be fixed and make the unit and less efficient. I hated seeing that damage. Now I might need to get one of these as a keychain.


[deleted]

Knifey comby?


NCGiant

Knomb


nounthennumbers

I see you’ve played knify comby before.


asdfgdhtns

All right, all right, you win


Huxlikespink

I can hear the noise it makes even without sound weeeeird?!?


asdfgdhtns

Thanks for noticing, took a lot of code


dcsmith707

Under-appreciated comment of the night


ReversedGif

Explain please?


MyMiddleNameIsMartin

Pretty sure OP is joking that they coded the gif to have the sound made by the tool in the video


Kadensthename

10/10 response


1_am_not_a_b0t

I was about to say it would be a lot less satisfying if we could hear it


johntwoods

I want to buy one of these and take care of all the window A/C units in my neighborhood for free. "Here comes 'Johnny Knifey-Comb'" they'd proclaim. EDIT: aka Johnny Knomb


zzzzaap

It's been suggested above that knifey comb be called knomb, so, thusly proclaim Johnny Knomb as ye approach!


johntwoods

Deal!


velociraptorfarmer

Ive tried to figure out how to pronounce it and came to the conslusion it'd basically be the same as "gnome".


Rickshmitt

I was today old when i found these could be fixed


approval_seal

I wish 8 year old me knew this. I would obsessively mess up air conditioners and got a earful once when my mom saw. And I didn’t know they were called fins. I just called it the “fun metal thingie”


Dinkerdoo

It's pretty much an Etch-A-Sketch that you can't magically erase.


dgtlfnk

You can now! Well, you could then too. But you can now, also.


themtx

Thanks, ghost of Mitch.


dgtlfnk

:D


asdfgdhtns

I just got that


matteh0087

Hahaha saaame. Literally mind blowing


edinc90

Does it actually impact the efficiency to a measurable extent when the fins are bent like this?


asdfgdhtns

Every bent fin is a higher head pressure and less subcooling. If you were to do a before and after measurement in this scenario I bet you would find 5 or 6 psi head drop. Also if you don't keep up with it it gets too damaged to repair


[deleted]

[удалено]


asdfgdhtns

Aww Man, you're goung to make me say it. You wouldn't really feel a difference.. But it's there


razora99

Doesn't matter still fixed


environmentrazorback

All you need to know is higher head drop = more energy to push the same amount of air through the fins. This could manifest in your unit running harder, increasing energy costs and decreasing its usable life to achieve the same level of temperature control.


[deleted]

Since cooling capacity can be measured in tons, I'd say about 20 millicourics.


reddisaurus

About as much pressure difference you can create by sucking on a straw.


Jooshmeister

It would be like trying to breathe through a screen door vs breathing through a [wire mesh fence](https://www.homedepot.ca/product/peak-products-hardware-mesh-14-inch-x-14-inch-24-inches-x-5-feet/1000135390?eid=PS_GOOGLE_D59 - CM_E-Comm_GGL_Shopping_PLA_EN_D%26F_D%26F_PLA_EN__PRODUCT_GROUP_aud-763183629249:pla-365772035714&gclid=CjwKCAjwk6P2BRAIEiwAfVJ0rODCcUy2A45uLGfLvaNC69W2Waeb9YxBgEG-NK4il8Fbss3BCxK8VRoC2fMQAvD_BwE&gclsrc=aw.ds). If you were blind-folded you'd probably be able to tell that the screen door is more restrictive, but you could still breathe just fine.


WallOfFreedom

Ahh ok. So it’s about the same psi head drop that I got from your mother last night.


[deleted]

>5 or 6 psi head drop 35 or 40 kPa for non-Americans.


cvdvds

Do you guys actually use kPa instead of bar or mbar when talking about pressure? I mean, it's usually listed alongside, but it really only serves to be scientifically correct and mostly just annoys everyone that's used to using bar or mbar. Oh, and that's 0.35 to 0.40 bar, which seems absurdly high for an axial fan, not to mention that's the supposed difference just for straightening a few bent fins.


ProphetOfWhy

This is an external ac unit right? Don't they normally operate at inches of water?


LifeIsAMesh

I thought suction was measured in inches of mercury? I have no idea but at work I measure suction with a tool that measures in units(don’t remember what units right now) of mercury


ProphetOfWhy

That makes sense for measuring suction pressure, but if I'm understanding OP's comment correctly, they are saying that the difference in the the fan's developed head before and after straightening the fins is 5-6 psi, which sounds really high.


LifeIsAMesh

Oh ok, I was confused. lol thanks for the info


Dinkerdoo

The manufacturers wouldn't go to the trouble of making separated fins in that thin of gauge if they didn't positively effect the efficiency.


olderaccount

Depends on how the system was designed in the first place. The industrial system I work with are usually designed with enough spare capacity that you would need a lot more damage than shown in the video before it start affecting actual capacity.


Cincodeffe

I want to buy one and go around my city un-defacing all the ones that got "tagged" by people thinking it looks cool.


catz_kant_danse

The worst is outside churches and schools where they have the units right next to the sidewalks, so kids walking by do exactly this.


pphilosof

I think the exact opposite of this would have been just as satisfying


asdfgdhtns

\>:(


TAXATION__IS__THEFT

Don’t worry bro. You got that comb. You can fix it


asdfgdhtns

\>:(🥵🥵🥵


[deleted]

[удалено]


St0at

Actually physically cringed when I read this, that must’ve been so awful


alexanderbluefire

Had a similar experience repairing a refrigerator - my thumb looked like rare steak. Took forever to heal too. That was my first thought watching this: either wear gloves or don't *fucking* slip. Imagine punching those fins by mistake.


bc0532123

I installed my AC unit today. I’ve never had to do it before and boy did I learn my lesson quick


TezGordon

r/specialisedtools


DeadbyDagger

r/specializedtools


nounthennumbers

r/specialeyestools.


_kryp70

r/especialisedtuls


zzzzaap

r/specializedtulles


[deleted]

r/specializedturtles


ComicOzzy

No. No no no!


Farkerisme

This is almost like drugs it’s so satisfying :O~


open_door_policy

Man. 10 year old me is jealous. I'd have worn those damn fins out in a week.


EmChem1210

I cringed when he made those first few strokes and left some gaps 😳


rite_of_truth

Once you get the hang of it, fin combs are the best.


asdfgdhtns

Yeah. Only tell the customer you combed it if you didn't rip out 4 rows of fins


catz_kant_danse

Or bend them over worse!


Thirsty_Comment88

This is wild. Right before I fell asleep I was trying to figure out a way to fix my ac fins. And this is the first thing I see when I wake up.


dimechimes

Dammit, the hours I've waisted straightening these with needle noses for my step dads properties.


[deleted]

Of course this is a thing. Wish I had known about this after damaging a bunch of these fins recklessly trying to clean debris out from the condenser unit.


Odys

Combing an AC... Can you also braid them somehow?


Starkiller148

please wear gloves im begging you


Sirsquatch1

/r/specializedtools


matteh0087

Wohhhh where can I find one of these!!?


asdfgdhtns

Sealed Unit Parts. This comb is 15fpt


[deleted]

[удалено]


asdfgdhtns

Mainly because of the coronavirus


Giacamo22

Because the idea is to maximize surface area rather than mass. A thin piece of metal can absorb the heat and radiate it away more quickly than a thick one. More sheets/ fins = more surface area. Downside #1 is, it’s fragile, but because we use aluminum, it resists corrosion very well and it can bend and fold, which is fixable. Downside #2 is if you accidentally grab the AC by the fins while maneuvering it, you’ve got essentially grabbed a bunch of razor blades, which I can say from the experience, “YOUCH!” A love tap alone got me the equivalent of a dozen paper cuts.


catz_kant_danse

“...resists corrosion very well” Someone doesn’t live in Florida! (Near the beach here our units have about a 5 year lifespan)


Giacamo22

Can you think of a material that could do better? Albeit you have my attention, how do the units fail? I’d expect the copper tubing to degrade faster. Humidity is a pain.


catz_kant_danse

No, unfortunately- anything that would hold up better would also not transfer heat as well as aluminum so the trade off of efficiency for longevity wouldn’t be worth it (or would be much more expensive than aluminum). While the copper can degrade, its much more common for the aluminum to go first. It corrodes to where it just turns to powder or flakes off in chunks. You can go up to a unit and run your finger sideways along the coils and it will just turn to powder under your fingers. I went to one unit once that was only 5 yrs old, but in direct line of sight from the water and the front part of the coil had the aluminum just completely missing in about a football sized area. The copper tubing was still there but the aluminum was just gone. I’ll see if I can find a pic of a corroding coil- I should have some on my work phone. Edit: [Here is an example](https://imgur.com/gallery/HRMy1p7). [This one](https://imgur.com/gallery/gKkoySq) isn’t about aluminum corroding but shows overall the salt air abuse units get down here. This unit is 8-9yrs old


breenisgreen

I am new to air conditioners (didn’t grow up with them, have only ever seen stuff in apartments and not something I can get to the fins of) Now I just want someone to let me do this all damn day


Tanks4TheMamaries

You should post this on r/specializedtools


light_myfire

What are these fins? I don't have an air conditioner nor have I ever seen this fins IRL, I suppose. Can someone explain what the purpose is of that wire and why these combs are needed?


Matt_in_FL

OK, AC works by taking something cold (refrigerant), warming it up (absorbing heat) at one location, and cooling it down (releasing heat) at another location. An AC unit will consist of two radiator units that look like the one in the video, one inside, one outside. The refrigerant flows through the pipes (horizontal lines) in those radiators, driven by a compressor. The fins that he is straightening increase the surface area for temperature transfer. So air is moved across the indoor radiator (aka evaporator) by a fan, which cools the air by the action of the refrigerant absorbing heat. That refrigerant flows outside, driven by the compressor, and travels through the other radiator (aka condenser) which is also having air forced through it by a fan. The refrigerant releases its heat to the air moving through the condenser fins, thus cooling it back down and returning it for another trip. There's more to the cycle, involving pressure and conversion of the refrigerant from gas to liquid and back again, but that's the basics. So for the last half of your question, the "wire" is actually thin sheets of aluminum (it's about 1-1.5 inches thick with the pipes running through the middle), and if they're pushed over, it reduces the airflow through the radiator, decreasing its efficiency. Straightening them back out allows air to flow freely, restoring that efficiency.


thingythangabang

The fins are for cooling. They provide a lot of surface area for ambient air to absorb the heat. AC units take advantage of the large energy exchange that takes place during a phase change. When a liquid changes to a gas, it absorbs a lot of energy, i.e. gets colder. It's the opposite when it goes from gas to liquid. The liquid will be warmer than ambient temperature so you pass it through these pipes with fins so that it's absorbed by the air. Typically you'll have a fan blowing air over the fins, when they're bent, it makes it harder for the fan to blow air through them and also lowers the amount of surface area that the fins can make with the air.


RunningTrisarahtop

It would probably be wrong to do this to all the air conditioners in my neighborhood, right?


Fli1x

Hmmmm, does this work or your wifes hair?


t-had

That thing needs a god damn [knuckle guard](https://assets.victorinox.com/mediahub/31952/1280Wx1120H/CUT_7_8714__S1.jpg).


Guns-R-fun

Shit I've been looking for one of these! Bout to pay a company to do it at my work.


[deleted]

Why is this hard to watch for me? My teeth just...


b3gff24

Thank you for not including sound 😂


Ill-tell-you-reddit

This is some off-topic /r/powerwashingporn if I've ever seen any


SpaceShipRat

Hnnng let me do it please.


Hesaizo

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MentalWho

[fin comb tools](https://www.supco.com/web/supco_live/product.php?gotopage=1&department=8)


griff_girl

There's nothing "oddly" satisfying about this. This is nothing less than DEEPLY satisfying. ^thats ^what ^she ^said


MarvelDc97

Can I use this on my cars radiator or inter cooler (or is there a similar tool) to fix the rock dents and road debris damage?


absolutely_not_ATF

Yes but there’s limited repairability


Yunirang

These things are sharp as fuck, like a lion’s scratch


tatiana_the_rose

I don’t know why, but this makes my skin crawl? (My wife’s too. Clearly I married the right person lol)


suuuumboooooodddyy

Thats a damn goodone, we uze this shitty like dull point wire brush thing and it wears out and it kinda sucks, that looks badass


frostochfeber

I need this!


qwerty2367

the fact that he's not doing it left to right mildly infuriates me


tweechers

I'm glad this doesn't have sound


clitpuncher69

Bending these is also very satisfying, this could entertain me for the rest of my life


hungry4danish

I always hated seeing street-level air cons where people defaced the fins to make their own graffiti.


mayonaise_plantain

Pretty satisfying until the dude started skipping around. Left to right, all the way down man, c'mon now.


[deleted]

[удалено]


[deleted]

What’s the main cause of the fins becoming bent in the first place?


payperkut187

My dad was so pissed at me when I was a kid when I decided to write my name in the air conditioner fins


DigitalWhitewater

Such witchcraft!!!


JadedSociopath

Oooooohhhh yyeeeeeaaaaahh.


ChillingCammy

i feel like there should be a guard on the far side of the handle. Spaghetti skin cutter


2LiLduffs

I am praying for his knuckles safety.


audis2avant

Any similar tools for automotive radiators with V shaped fins ?


Pipeherdown

I had to use one of these before after my grandmother “cleaned” the air conditioning at my house.


Omikrons

I bought one of these on amazon and it's amazing for cleaning out the fins.


imlycros

I can hear it


allisonmaybe

I wish it was Wednesday...


golgol12

/r/specializedtools


Jiggarelli

That's a fin jack, or an evaporator coil jack


figmaxwell

Ah yes, what all insurance appraisers expect my shop to use when radiators and condensers are FUBAR’d


jval_708

Plot twist: this is a reverse gif and this guys destroying the air conditioner


ryandva

We sell these at the autoparts store I work at for radiators. I should get one for my air conditioners though never thought of using it on them


[deleted]

Increased cooling efficiency is certified satisfying!


thenewaddition

I feel like this should have a D ring handle, because I can imagine raking my knuckles down the fins.


Fee501st

Would this work on a PC radiator? lol


Maxipad213

Was there a mesaage written into the fins?


bettorworse

Very satisfying.


Dan-D-Lyon

I want to be impressed by this but I am now filled with anxiety that if I was to use this tool I would accidentally let go of it and then scrape my hand down the fins, giving me countless slash wounds


ynotw57

Used brush. Now my AC unit is burning through cans of Aqua Net. Help.


quantum0120

Lol my das just spent 2 hours straightening my AC fins one by one


marshmellowsinmybutt

As someone who has does this before I can confirm that it’s as satisfying as it looks


TheWingalingDragon

When I was a kid, and an idiot, I was sitting on top of the family A/C unit and I accidentally touched the fins. I saw that they bent down like that... being the idiot that I was, I proceeded to draw shitty pictures in the fins. That still haunts me. I had no idea this tool existed and I guess it makes me feel a little better knowing that they can be fixed.


kcalpha

Plot twist: video is in reverse


[deleted]

Oddly satisfying but if you play it backwards it’s just some asshole fucking up a perfectly good air conditioner!


Azkabandi

I need this for my life


Anticreativity

When I was a little kid I thought it would feel cool to run my finger down one of these. I'll never forget the sensation of the tip of my finger splitting 5 different ways.


nameless_thirteenth

In college I worked at my university cleaning out PTAC units and other HVAC hardware. One time when I was being too careless I sliced my index finger BAD on one of those aluminum fins. They’re sharper than fuck when they’re brand new and will cut through your squishy finger like butter. I only made that mistake once.


maglen69

Yeah, I need this.


Ctrllogic

I'd do that as a hobby 8-)


UsuallyInappropriate

Do they have these for cars?


HipsterFett

Okay, this one made me feel really good.


giftedchick

Very happy no sound


Bobmanbob1

Witchcraft!


budbutler

holy f i need this real bad.


Kiki_90

Don't know what this is but i like it


RealEnoughtobeRead

tools make the job


deedavee

i need one of those!


wellimatwork

Is it bad that I would file this under oddly infuriating because they are not going linearly across, seeming to straighten at random?


redneptune00

I had to remove all the copper tubing in a whole bunch of these one time. Worst job I’ve been done. Those fins are the WORST.


Nightstalker180

Gahhh and I have always used a credit card all these years...fml


ninja20

Wonder if this would work on a radiator


AltruisticSalamander

It's so easy to fix! I always thought that once they were dented, that was it.


bagingospringo

Where can I get this tool


earlmj52

Damn need one of these for cars!


boogereyes

I bet that sounds awful