Thermoelectric Cooling is a Bad Idea


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Published: 6 months ago
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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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comment  Comments

I'm afraid to use WATER cooling (reminds me of cold showers I take every morning in winter.) however if you run into a problem the water cooler could ruin your $2000 PC in about 10 seconds

5 hours ago

Bad Cooling Idea:
1: Take one shop vac hose
2: Attach PC fan with air flow direction going into hose and a variable speed controller.
3: Place or attach the opposite end of hose to front of PC case.
4: And here is the tricky part
place the fan end out the window into THE COLD DEAD CANADIAN AIR!
As a Wisconsinite I'm quite positive this set up should have some cooling effect 3/4 of the year.
5: the other 1/4 just duct tape the end to the AC output. (I'm talking Air Condition not Alternating Current)
6: Then crank up the AC and wear your LTT Hoodie available at........ Oh poo I forgot where to get those.
Well that project's scraped.

5 hours ago

hey editors, what lut is that at 10:58?

12 hours ago

I was involved in a US Army study on thermoelectric peltier cooling back in 1985, so your belief that it dates to the early 2000's is a bit off. We were using the technology to make TANKS invisible to infrared scopes in the battlefield. The technology proved to be very effective, but far too expensive at that time. In the experiment we took a battle tank and covered it with the devices and it did, in fact, make the tank blend into the background, and so undetectable to the enemy with infrared detectors. There was, however, a draw back with the technology - it made the tank unbelievably HOT inside.

20 hours ago

Clamping force! An essential part of properly using a TEC is applying the correct clamping force. Typical clamping loads should be between 0.5-1.2 Mpa (73-174 PSI). For your setup we are looking at a required clamping force of around 160Kg (350 pounds) per block. That little clamp isn't doing it for you.
That, and the lack proper parasitic isolation can end up in loss of efficiencies of 20% or higher

1 day ago

Peltier are Not effective yes the work just not well for the energy they use

2 days ago

Electric cars have the opposite problem during winter

3 days ago

Honestly would love to see another manufacturer take a crack at putting a small sterling engine on their heatsink fan.

Not for like... amazing cooling or anything... for bragging rights lmao.

3 days ago

I used to run Switftech Pelt coolers. They didn't catch on because they were expensive and required a lot of prep work to the CPU itself to prevent condensation which is a serious problem for Pelt cooling. You have to insulate against condensation and that can be tough for most people.

4 days ago

1:22 I almost had a heart attack!

4 days ago

Scrap wars only thing worth watching here anymore
.......
... his head is to big and out of realistic builds....

5 days ago

Seriously... Watches... And shit ones for that!!!

1 week ago

I swear when he said "what's even cooler" I was so sure it was gonna be a segway.

1 week ago

Was that a mountain of thermal grease and a rock right before the intro???

1 week ago

Peltier Coolers were used in the late 90's to early 2000's with the computer modding boom and worked very well for OC purposes. Buy a standalone Peltier that sits right on the CPU, then add a cooler to chill the hot side of the Peltier. If you look at a computerator build where the freeze tray is used to chill a bucket of alcohol, thats then pumped through a water block sitting on a Peltier. It gets stupid freezing temps. We had to add water proofing due to condensation, etc etc etc. most of this was completely impractical but was built just for fun. A favorite was a 400mhz celeron to overclock as these were basically just cheapy pentium 3's. @Linus

1 week ago

ThunderF00t has a number of very in-depth videos on the subject of thermoelectric coolers and why they are absolute rubbish for applications like this.
I cannot recommend his channel highly enough.

1 week ago

Peltier device should be used based on water-cooling radiator. Which means the peltier devices should be connected after the radiator to achieve sub ambient temperature. So, Linus' 15 yr old engineered refrigerator cooler can retire now. 🤣

1 week ago

i had a tc cooler back in the day by i think thermaltake. if i remember right it was socket 939 first dual core days.the tc was one of the few coolers that worked. ran around 32c under gaming loads. the biggest problem was the switches to turn on and off the plates.i think thats was one main reason they stopped making them. then core count changed again and became not relevant.i may still have it in a box somewhere lol.

1 week ago

What was the heatsink he was talking about that was $50 cheaper than the NHU12, and had 2 times the heat pipes?

1 week ago

I had a cooler like that back when SLOT 1 Intel Pentium II CPU's were around... It had a HUGE TEC pad on it, and then a big ass heatsink and 2 fans too cool that. It worked about the same as if you used just the big ass heatsink. lol

1 week ago

I was really surprised to see you didn't TEC cool your RED cameras as TEC cooling is awesome for camera sensors.

1 week ago

Them midrolls tho👌

1 week ago

you might wanna use a radiator coolant rather than an ordinary water when testing the thermo electric cooler.

1 week ago

Love the rock. That made me laugh.

1 week ago

theres peltierer´s celds?

2 weeks ago

Why didn't you use the tech cooler in the radiator of the water cooler?

2 weeks ago

Jesus lol...I get 27C at idle with the Corsair 115i and a 7900X.
I don't think I've ever broke 40C under load at stock speeds.

2 weeks ago

1:24 wait are they using a rock a cpu cooler?!?!

2 weeks ago

"Draws 32 amps"
"From Ebay"
Sounds...safe...

2 weeks ago

Peltsier facts:
1: Peltsier need heat load to work. (Kinda suprised you did not know that)
2: because of 1*, you need to stack Peltsier elements to have reliable efficiency.
3: you can't run it on air.
4: if you run it on water you kinda need a open circuit, (one end of the hoes on the tap, end in the drain)
5: the best option is a water cooling system with another cooling medium then water so the heat can be absoreb and relsed faster then water can.

2 weeks ago