Thermoelectric Cooling is a Bad Idea

Linus Tech Tips
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People keep emailing us saying “Hey Linus, you should look at Peltier Coolers!” - and I’ve finally given in, so here is a video about why it’s a bad idea.
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Science & Technology

Published on


Aug 11, 2019




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Comments 3 621
Derpin Bird
Derpin Bird 22 minutes ago
If power was no object you could end up with a super cool and quiet rig if you added enough of them
bleckers 5 hours ago
Thermoelectric cooling will never be worth it. You have to not only get rid of the heat of the CPU, but you also have to get rid of the heat the Peltier is adding to the system before you see any measurable benefits. If you use a 500W Peltier, then you have to get rid of that 500W too.
Byke Ryder
Byke Ryder 15 hours ago
Should left the radiator hooked up while doing the peltier loop and seen what the results were.
Lain Macauley
Lain Macauley 15 hours ago
Tl;Dw buy an air cooler.
Dr sausage fingers
have you tried to slow down the flow rate? maybe giving the chillers more time to cool the water may help? i understand it will also give the CPU more time to heat the water up but maybe it will make a difference over all..
Daniel .Power
Is there any benefit of cooling a cpu and gpu below ambient say maybe 10 degrees celsius under overclocked load instead of 30 to 80 or whatever above ambient degrees celsius? Maybe longer life or better efficiency? I also don’t see the tec’s as stand alone coolers, they are more inefficient than radiators above room temperature, yes, but because radiators cannot cool to or below room temperature, tec’s are therefore more efficient there. Just not sure if there is a benefit. Also not sure if a better build with tec’s is to use the water cooling blocks on top of the tec’s and cpu to water cool the peltier, keep the size and noise down, as well as get the cpu below room temperature or to put the tec at the end of a radiator loop with some 6 heat pipe tower heat sinks where the tec chills room temp water from the radiator below ambient before it passes through the cpu and gpu and even to cram a peltier and water block inbetween the gpu and cpu to flash chill the water between the systems and to make use of the small size of the modules. Another system is to carry a double stack radiator with one water loop for cooling peltiers and another loop for bringing water to room temp with maybe an electric valve switch to either go below ambient or turn off the peltier and route water from the peltier cooling loop to the central loop when overclocking. Long story short, anyone investing in water cooling isn’t exactly a budget builder and will pay a few extra buckaroos for space saving, lower noise, and looking for whatever air cooling cannot deliver Also, get yourself a krimping kit, like cheap dupont 2.54mm connectors if soldering is not your thing :p
tchouzebra 2 days ago
If one tower is the hot side and the other one is the cold size then the fan must be put in place so it pulls from the cold side and pushes to the hot side
Cody Gilliland
Cody Gilliland 2 days ago
seen your video on concrete cooling just an idea concrete cooling block maybe????
John van de Ven
John van de Ven 2 days ago
I am absolutely certain that the thermoelectric cooler will run perfectly on AMD processors. After all, they consume a great deal less power and run much cooler than comparable Intel parts. If I had to live and work in Antarctica, I would use only Intel. They are very efficient room heaters, especially the i9 9900K.
Taut Tech / Minus Managed Music
Next Bad Idea: Put a Bluetooth speaker in a CPU cooler!
u666sa 2 days ago
What kind of thermal camera is he using??
Jason Norman
Jason Norman 2 days ago
Ultra Chilltec thermal electric cpu cooler came out in 2007, had a 5.25 bay to control the TEC, while using air cooling. I am still using this on my older P4 dual core.. Old School. Runs at 32 F. Specifications * Socket Types: Intel Socket 775, AMD Socket AM2 / 754 / 939 / 940 * Cooler Dimensions: 128 x 104 x 147 * Thermoelectric Chip: 40 x 40 / 12V DC * Total Power Dissipation: 0% Load = 5 W 50% Load = 28 W 100% Load = 50 W * Heatsink Material: 4 Heat Pipes, Aluminum Fins, Copper Base * Heatsink Dimensions: 90 x 90 x 160 mm * Fan Dimensions: 92 x 92 x 25 mm * Fan Voltage Rating: 12V DC * Fan Speed and Noise Levels: Low 2000rpm / 20 dB(A) Medium 2400 rpm / 24 dB(A) High 2800 rpm / 28 dB(A) * Thermal Resistance: 0.12-0.15(ºC/W) * Weight: 985g (With Fan) * Temperature Monitor Range: 0ºF~99ºF / 32ºF ~ 210.2ºF * TEC Temperature Response Time to Control Unit: < 1 Second * Controller Dimensions: 150 x 147 x 43 mm * Controller Weight: 508 g Read more at hothardware.com/reviews/ultra-chilltec-thermo-electric-cpu-cooler#WehcxwQ7vw8QtL69.99
Moritz Fl
Moritz Fl 2 days ago
Linus appears to be wearing different clothes after every cut to show off the merch :)
wisdomelf 2 days ago
we just need a miniature black hole to suck all the excess heat.
FpsFate 3 days ago
Vincero? What is this lovelliveserve?
CupcakeLove 3 days ago
2 questions. Does anyone know what type of laptop Alex is using, and does anyone know the specs of the rig they are testing the cooler on?
Joseph DESTAUBIN 3 days ago
Perhaps it's not mature technology? WTF, it was invented in 1838!
Eric Huang
Eric Huang 3 days ago
Have a try to put the peltier after a radiator. That must work better. (Since that means we simply have extra cooling)
ʜ̲̅ᴀ̲̅ɴ̲̅ᴋ̲̅ ʙ̲̅ɪ̲̅ᴢ̲̅ᴢ̲̅ᴏ̲̅5̲̅
Wouldn't you get the most out of this by cooling the radiator?? You know so the heat goes into the air not back into the system..
pikachu 922
pikachu 922 3 days ago
try cascade phase change next.
Aleksandras Fedotovas
because its too expensive to run..if you can manage to run it at all XD its still not mature enough XD
Cameron Walker
Cameron Walker 3 days ago
Oof that soldering at 11:13 hurt my soul boys. Get some flux on those joints!
Rdoug 3 days ago
"oh pinch it pinch it.. wait wait don't lift that up" - Linus
Edrich van der Bergh
What if you use the 2 aquarium coolers in line with a radiator to cool the water coming out the cold side of the radiator then run it to the cold side of the cpu block and so on
MSi 3 days ago
u cant use thermo plate one side is cold but other side is hot ..
Daniel Shaver
Daniel Shaver 3 days ago
Use Hailea HC-500A or higher and get rid of the rad and fans?.
Daniel Shaver
Daniel Shaver 3 days ago
sorry rads, fans and peltier.
Silver 6 days ago
Wonder if you could use this system to push OC scores. Worth a video IMO.
Aaron Richards
Aaron Richards 6 days ago
I had a Titan Amanda TEC cooler back in the Core 2 Duo days and it worked pretty well, was just quite power hungry.
John 6 days ago
the peltier waterblock is very inefficient. it is exchanging heat in a very small area. this test was very bad done.
Billy Wang
Billy Wang 7 days ago
Better to overheat the CPU and generate some electricity back from the temp difference lol
charles worpek
charles worpek 7 days ago
Ive seen them on the intel 486
The ending threw me off so hard wtf
Vaibhav Ojha
Vaibhav Ojha 9 days ago
I love the jibo shirt
3Adel Gaming
3Adel Gaming 9 days ago
Check Alex's face at 16:29. psst.. he didn't see you no worries :)
Peter Hall
Peter Hall 9 days ago
I seem to remember removing peltier devices from old macs, I think they were 6100's, 7100's, 8100's, or 7500's. I can't remember if they were stock or not either. These were in early mid 90's models. (LOL - When Linus was about 10) Somewhere I still have the plates packed in storage...
Nalianna 10 days ago
And everything is on sale until 8th August 2019!!!!!!! uploaded Aug 12th 2019.
Wicked 10 days ago
my guy 30$ for a water bottle?!
Random Guy
Random Guy 3 days ago
Wicked for double wall insulation, that’s not too bad, just look at what Hydro flask and Yeti are charging for similar size ones.
Ben Melindy
Ben Melindy 10 days ago
I swear Linus could be Bill Nye's son
Vivien Staehle
Vivien Staehle 10 days ago
a Pelletier use power to move heat, so eventually it generates more heat than without. The only good thing is to control precisely the température with PID loop.
Master Code
Master Code 10 days ago
Would love to see liquid metal instead of water in a WC system maybe even run it through the water cooler and destroy that in the process ;)
yakine fort
yakine fort 10 days ago
You should next pur Peltier + radiator !!! So that we have both Water-cooling setup + extra cold from Peltier waterblock!
TheSkepticSkwerl 11 days ago
542 watts at 32 Amps means it's running at about 17 volts. Which means at 120 volts it's about 4.5 amps. Weird conversions in there.
Michel AMAR-KHODJA 11 days ago
v42o 11 days ago
You guys gone goofed.. Get a 40-60mm thick radiator and attach them direct to side of radiator no water loop on cold side
Saajaadeen Jeffries
bad cooling ideas idea: Watercooled gaming router rgb.
Milan Svitek
Milan Svitek 13 days ago
Get 10 of those 500W ones in series and do this again.
Олег Лян-Воеводов
Guys, just put your cooler to refrigerator
JavierBacon 14 days ago
What if you put the Peltiers in the loop after the rad?
eric r
eric r 15 days ago
plz do video of this to cool a small highly insulated room plz.
Klab 15 days ago
Next: Helium Liquefier cooler.
Paul Rivieras
Paul Rivieras 15 days ago
Tons of CPU Paste + Huge Rock = ROCK STABLE OVERCLOCK 😂
ALEGAMING 27 15 days ago
why not use the peltrier cooler with the radiator to like the radiator makes the water at much ambient tempeture and later the peltrier make it sub ambient
Junk Male
Junk Male 15 days ago
Cool the Peltier chillers with the 360 rad!!!! LoL
The Ginger Man
The Ginger Man 15 days ago
I bought a 12V 6A peltier cooler today for R64 ( about $4). they're pretty cool to play with, but horribly inefficient. The fact that you pay $350 for one with a water tank, is insane.
Jared T
Jared T 16 days ago
I had a 400 watt TEC back in 2004ish, it was a fun experiment. I'm looking forward to this part 2
Jared T
Jared T 16 days ago
TEC can be good if implemented correctly, safer than water cooling and uses less space than big air
Amiibo Alec
Amiibo Alec 16 days ago
do amd cpus through the ages please
Edison TorresSoto
Edison TorresSoto 16 days ago
The Term Cascade Refrigeration as describe here:www.quora.com/What-is-the-advantage-of-cascade-refrigeration Could be more useful using the same Peltiers Modules Just Need to Better accommodate each module the correct way to better dissipate or transfer all the energy as Heat from the processor to peltier 1 and Peltier 1 to Peltier 2 but at Different alone Loops. Or Cpu to Peltier 1 to Accumulator to Peltier 2 cpu, The temp should drop by a lot but the wattage would rise up on peltier 1 as peltier 2 will lower far more what peltier 1 suck up the heat coming off from cpu and would not let accumulator to keep a fresh heat source untap. By killing the heat from cpu allowing the flow in the accumulator to chill before being rechill before cpu intake. BTW as seeing before a better coolant would be needed peltier can drop below 0 so a good coolant is a must.
Edison TorresSoto
Edison TorresSoto 16 days ago
Micro Refrigeration Compressor ruvid.net/video/video-uIYVwbw6gcg.html
Luminociter Fos
Luminociter Fos 17 days ago
Guys while I actually agree with your conclusions I have two suggestions. I would suggest calibrating your Flikr caméra. The temperature you are reporting is not totally correct. You would need to choose a material (eg the cooper heat pipe) and calibrate your IR camera to the cooper emissivity. Then just point the camera to the same point in every take and you will get the correct temperature. You might be up to 50% of on what you are thinking.... Peltier is a great technology, BUT you need a PID controller. I think mounting them directly to CPUs can be pretty dangerous. PIDs are not cheap though.....
Jedzia Dex
Jedzia Dex 17 days ago
Thanks for showing this off. Your second part will also be a failure. The 30A current into the Peltier element that generates (ADDITIONAL) heat must also be removed. Why is it so difficult to understand that nothing is for free in nature? This kind of magic technology is better suited for, let's say solar roadways?:)
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