Peltier Cells?

In the current make magazine issue #15 There is a project called the Seebeck Generator. I was wondering about the use of Peltier Cells. Can someone elaborate as to how they function? I mean can you get them in different sizes? Would different sizes effect the power output? If I took like 50 of them and somehow combined them could I get a higher yield? What if you used it in combination with something like Hydrogen? Ideally Hydrogen burns hot and if I had a large version of the Peltier Cell Could I use it to get a real power output? Possibly enough to power an electronic motor? Just some random thoughts the magazine sparked. Thanks, Jester

Topic by Jester_boy2 10 years ago  |  last reply 10 years ago


Peltier dehumidifier

I hope someone with a technical background can help me with this... I am trying to make an DIY dehumidifier. The goal is to lower the humidity of my room during the summer months (humidity is around 70% at 25C) to less than 50, preferrable 30%. I have the following setup in mind: To achieve condensation I want to use a peltier that will lower the temperature of an radiator. The condensed water will be gathered in a (plastic) box. This water will then be used to cool the hot side of the peltier, using a water block and a waterpump that was left over after using watercooling on my PC. The image depicts an simple graphic of the setup. However, I have the following questions to be answered: - How cold (relative to the ambient temperature) would the cold-side radiator have to be to get optimal condensation - How much watts of cooling power would the peltier need in order to achieve the needed temperature difference - If i lower the cold side temperature with 20C, how much heat would be generated on the hot side? (my gues: 20C, but im no genius ;) ) Thanks in advance!

Topic by pelzinga 5 years ago  |  last reply 5 years ago


Peltier coolers and condensation?

Hi there, I'm having this crazy idea of building a mini AC based on a Peltier cooler, and connect it to a PC case to introduce cold air inside of it. I have seen a lot of instructables here, but I'm worried about condensation. You know, the "electronics + power + water = Kaboom!" equation. Neither the peltier nor the "cold" heatsink will be inside the case, I'll just blow air thru the "cold" heatsink and inside the case, releasing hot air far away (maybe with a long tube?). My question is if the cold air will carry some kind of "humidity" from the condensed cold heatsink, and if it will be enough to blow things up. I can spare some 60 or 70 watts to make the peltier work, so I'll just grab a ATX power supply for the peltier and the fans. Do you think it will work? Thanks in advance, and Happy New Year. :)

Question by ethaniel 8 years ago  |  last reply 3 years ago


Thermoelectric <Peltier> coolers

I would like to know if anyone out there in Instructables Land knows about Thermoelectric Peltier Devices- what they do and how they work. I have 3 of them in my collection of various electronic components & devices. I consider myself as having a good knowledge of thermoelectric peltier devices. If anyone out there thinks they know more than I do, OR works at a place that manufactures them, please let me know at labrath4@yahoo.com I'm currently unemployed, and would like to work at a place that manufactures peltier components- preferably in the testing and engineering department.

Topic by PeltierMan 9 years ago  |  last reply 2 years ago


Powering Peltier Plates

Hey guys,So, I just got a Peltier plate, a device that gets very hot on one side while very cold on the other. It requires 90 watts of power. I was just curious what would happen if you powered it by USB or 9v battery. I found this tutorial which uses USB, however, I doubt it gets to its maximum coolness potential. Also, if I used a 9v, would that drain the battery in a matter of minutes, or even damage the plate?Thank you.

Topic by Joe426 11 years ago  |  last reply 2 years ago


Powerful thermoelectric peltiers

Hi, I have read about technical specification of a thermoelectric peltier TEC1-12726 . The U max =15v , I max =26.3 and Qc max =257.27w. I would like to know about the cooling power in wat(cooling generating). It seems that the power consumption is about 400w. I have heard that  thermoelectric peltiers have good and high efficiency. I need some more information about any other powerfull peltiers with high efficiency to build an air condition unit. I need to make sure the power is the cooling power and/or power consumption. I would be so grateful to have  some good suggestions and ideas as well. Regards Kevin

Question by sajadi007 6 years ago  |  last reply 6 years ago


peltier circuit board

Circuit board I need to make a circuit board for a project. It is all 12vdc, I have a 1a fan and a 6a thermoelectric device one setting 1, plus another 6a on setting 2, and a 3rd on setting 3 So 1 is 7a 2 is 13a 3 is 19a How to make the board. Also a second device has the 1a fan plus a 4watt element, plus another 4w on setting 2, plus another 4w on setting 3 So 1 is 1a and I think 0.4a= 1.4a 2 is 1.8a 3 is 2.2a. I think

Topic by Johnieahenderson 2 years ago


Is it possible to power a peltier plate using a 12v wall wart?

Question by Joe426 10 years ago  |  last reply 7 years ago


Can i use Copper Oxide to make a Home Made Peltier?

Here's the site http://sparkbangbuzz.com/copper-oxide-te/copper-oxide-gen3.htm .  i thought that i can use Copper(I) Oxide to make a Peltier Module. Peltiers are made up of semiconductor materials like bismuth telluride. 

Question by bhipolito1 4 years ago  |  last reply 4 years ago


Does anyone know the best place to get a peltier unit? Answered

I would like one, but don't know where I should get it from.  I can get them from hong kong on ebay, but I don't like to have stuff shipped internationally.

Question by furrysalamander 7 years ago  |  last reply 7 years ago


Need a partner for Peltier type project to chill liquid. Medical Device. Cash Compensation

Need a partner for Peltier type project to chill liquid. Possible prototype for a Medical Device. Cash Compensation. I am in Toronto. Not a scam.

Topic by dnicol1 3 months ago  |  last reply 2 months ago


how much heat does the warm side of a 12v thermoelectric peltier produce?

I'm thinking of using a thermoelectric peltier device to heat my body while sleeping during winter camping (I have a 12v solar panel and where I'm going it's always light out). Will the warmside of the peltier heat enough so that if its in contact wih my body it will warm me? if its too hot i'll just wrap it in a sock or soimething.?

Question by leevonk 10 years ago  |  last reply 7 months ago


keep getting a short when I connect a peltier module to DC power source

I am trying to power a peltier module (3.9V 9A 21.3W). I have connected it to a DC power source at 3v and I keep getting a short. I have tried different voltages below the 3.9V and am still getting the same result. Am I approaching this at too basic a level? 

Topic by suzanneocallaghan 2 years ago  |  last reply 2 years ago


how to make Peltier cooler?

I like to make a Peltier air cooler. how much watts Peltier is needed and battery for Peltier cooler to run for 8 hour.if i use less watts Peltier does it affect the cooling rate. is it possible to place place another Peltier above heat sink while the other one Peltier is working, if possible how much amount of power can be produced from the Peltier placed above heat sink. Thanks

Question by nibytm 8 years ago  |  last reply 8 years ago


Using peltier to cool my radiator?

I have this idea and wonder if it is possible and feasible. Stick a peltier to my car radiator to generate electricity and store the electrical and then using the same peltier to cool my radiator?

Question by doshur 9 years ago  |  last reply 9 years ago


Required Power Supply for Peltier (TEC12715)

I'm going to build a Mini Airconditioner based on Peltier Module. I'm going to use 10 Peltier Module for better cooling. 1 Peltier requires Umax (V):15.4 Imax (A):15 Max power consumption (watt):231 Watt. Which Power Supply Driver is required to run all 10 Peltier Elements. [I am from Non-Electrical Background].

Topic by Karthiie keyan 1 year ago  |  last reply 1 year ago


I want to make a mini peltier refridgerator but I dont know how to make?

I dont know how to make a peltiers refridgerator.can I get the steps for making one?.Where would I ger the parts?

Question by vikram st 7 years ago  |  last reply 3 years ago



help, where to start please? 20*20*20cm fridge

Hello, First post, please be nice =) I unfortunately know absolutely nothing about electronics, or soldering... you get the idea. Clueless. But, I need to make a 20*20*20cm fridge out of perspex (something to do with my photography, see http://www.flickr.com/photos/jingleslenobel/ I gather that a Peltier with heat sink might do it? Would anyone be able to point me in the right direction please, in terms of making such a thing? Many thanks

Topic by ingleslenobel 6 years ago  |  last reply 6 years ago


what size heat sink do you use with a peltier?

What size heat sink do you use with a peltier, in order to make a mini usb fridge. 70w peltier

Question by walterh9 7 years ago  |  last reply 1 year ago


How to mount Peltier elements?

A peltier is a element that gets very hot on one side, and very cold on the other side. Cold enough (with enough power) to make frost all over it. So. I got one, I want to make nice cold cold air. I read wiki, if you don't heat sink it, it will self destroy. If I heatsink the cold side, then a fan on the heat sink to blow the cold freeze air, will it be fine? Or must I cool the hot side too? Peltiers are cool :D

Topic by Killa-X 11 years ago  |  last reply 7 years ago


A/C a room with Peltier units.? Answered

 Would building an array of peltier units in a windows frame work to cool down a room? This way hot air would stay outside and the inside "windows" would be cold. Either using heatsink and multiples computer fans to throw air in room or pumping water in pipes then on the units then to a big fan. Also, could this run on solar cells placed on the outside?

Question by gazoutg 9 years ago  |  last reply 9 months ago


Heatsinks and Peltier Chips-WWWWWUUUUTTT?

I need a peltier chip for a project and I'm a little confused how they work. I'm pretty sure I got it right, but not positive. Can someone tell me if this is right? The hot side of a peltier chip is attached to a heatsink with "grease" (can someone tell me where to get that?) then a fan blows the hot air away from the peltier chip from the side and another fan blows across the side of the peltier chip to its intended destination for cooling. Is this right?

Question by Adum24 8 years ago  |  last reply 8 years ago


Computer PSU's and Peltier elements?

Hey, I have 2 158W Peltier elements, that I would like to mount to some CPU-heatsinks, and power with an old 400W PSU. Can I "just do that"? There seams to be some caveats with how these units draw power AFAIK. Also, does anyone have any experience with how much heat displacement is needed to not just ending up frying the unit? Any suggestions on what heatsink to pair them with, and how strong a resistor to put on them? I want to use them at the maximum power I can get them to run with continuously for up to 2 hours. I have way too limited experience with electronics, and only a week to build my project, so I kind of have to go with the simplest approach here :(

Question by ELF 8 years ago  |  last reply 6 years ago


Where can i find peltier units in my house? Answered

I want to make a mini fridge so i need peltier units. I can post the mini fridge instructable when I'm done but i neeed peltier units!!

Question by sky0 9 years ago  |  last reply 9 years ago


Powering Thermoelectric Module (Peltier) Answered

I am trying to understand how TEC modules work, and I think I have it figured out now, but was hoping that someone with more electrical knowledge could verify that I have it right. I am looking at this TEC module. My current understanding of this is as follows: 1. If I regulate the current to this module to a max of 2A, the maximum amount of heat that the module will move at DTmax = 0 would be approximately 75W. 2. If I regulate the current to this module to a max of 2A, the module will not exceed a DT of ~20C. 3. If I regulate the current to this module to a max of 2A, the voltage could range between ~4-6V, but would not reach 10V due to the limitation of DT. 4. Therefore, this module, limited to a max of 2A, would use at max 12W (approximately). Is that all correct? Second, I am comparing the above module to this TEC module. For this second model, my understanding is: 1. If I regulate the voltage to this module to a max of 12V, the maximum amount of heat that the module will move at DTmax = 0 would be 28W. 2. If I regulate the voltage to this module to a max of 12V, the module will reach its DTmax of 67C (theoretically). 3. If I regulate the voltage to this module to a max of 12V, the current could range between ~0.75-1A, but would not reach 2A due to the limitation on voltage. 4. Therefore, this module, limited to a max of 12V, would use at max 12W (approximately). So basically, it is a trade-off between DTmax and heat moved at the same wattage. Is that correct?

Question by eblingdp 4 years ago  |  last reply 4 years ago


Where to get a peltier unit?

Hi, I live in palestine and I am making a cooling progect for school. I has thinking about where can I find a peltier unit at house? I need your help !fast!

Question by sajy 8 years ago  |  last reply 8 years ago


peltier device air con

Hey guys I am working on a project, my first, and am wondering if any one is willing to offer advice. the simple setup uses a swamp cooler to blow cold air over a radiator. the radiator cools down water that is connected to a peltier.if my theory is half accurate (which at best it is) I should be able to make the peltier quite a few degrees below the ambient temperature.

Topic by plucas1 5 years ago  |  last reply 5 years ago


Peltier Air Water Harvester

I was looking around at some of the air water harvesters tonight and of thinking about using a Peltier unit for one. Just started thinking and I know very little about either one of these. So my question is, could you use the cold side of a peltier to get an air current down to just below dew point causing humidity to condense on maybe a heat sink or something so it could be collected and use the hot side to create the air flow by a chimney effect? No moving parts.  Solar power it so it an be used anywhere in the world? Could be something that could supply clean water to people in need.

Question by dayfid12 7 years ago  |  last reply 7 years ago


How many peltier module i have to use for removing heat load of 250 watt?

 i am using peltier modules  12706   ( vmax  15 v, Imax  6 A)               by checking it was running at   12 v  and 3.5 A and   peltier module 12715  ( Vmax  15V ,  I max  15 A )           was  running at  12 v  and 5.5 A I am using computer SMPS to run this peltiers so i can only get 12 v max is there any way to increase voltage to 15 volt.

Question by YogeshK33 3 years ago  |  last reply 3 years ago


Temperature stabilizer system with peltier battery

Hello everyone! I have a thesis to design a temperature stabilizing(controlling) system for solar cells.I need to use 12V Peltier battery and a simple pc fan.Any further help is appreciated.

Topic by UgurO 3 years ago  |  last reply 3 years ago


How to control the temperature of a peltier module?

What is the most efficient way of controlling the degree of hotness or coldness of a 12v 6A peltier module? Can I use PWM?

Question by Jayvis Vineet Gonsalves 5 years ago  |  last reply 8 months ago


How to find hot side from a peltier element?

Hi how to find hot side and cold side from a peltier element?

Question by sandy.12345 6 years ago  |  last reply 2 months ago


Peltier Cooler/Heater - Pooling Brainpower

I recently acquired a thermoelectric mini fridge. As a fridge, it doesn't work so very well - it will get down to ~50 degrees with an ambient temperature of 70. So, I took it apart. You know the saying: "If it ain't broke - fix it until it is." So I now have a peltier effect cool/heater. I put my meat thermometer on the cold side with the fan off - and it gets down to freezing (probably a bit below). On the hot side, with a big sink and fan - it seems to be ~85 at it's warmest point (this sink is about half a square foot and an inch deep). Ideas on where to use? It's 110 service.... It literally almost killed me a few days ago when I touched a transistor sink that was part of the rectifier circuit while holding a plate that was grounded (I got knocked out for a few seconds) I've got a couple ideas, I just figured I'd pool brain power and see what happens :p

Topic by trebuchet03 11 years ago  |  last reply 5 years ago


Peltier thermoelectric heat pump, can it be used as Solar Generator?.

Can a 40 mm square Peltier thermoelectric heat pump be used as a solar generator It operates on 13 Vdc @ 5 Amps. Operating at 13 Vdc, we measured the hot side at 190 Deg. F and the cold side at 55 Deg F. I have a 6 foot reflector dish and can add Reok led tracker. How many watts will it generate if it does?. Thanks for your help

Question by talei1 9 years ago  |  last reply 3 years ago


peltier cooling/heating system for transportable animal incubator

I am trying to design a heating system for an animal incubator that can be transported in a car to rescue animals and keep their body temperature level. I was thinking of using the peltier systems to heat the box the animals will be staying in but I'm not sure if they would have the capability of 70-90 degrees fahrenheit. Also the temperature needs to be very specific (plus or minus 1 degree) is there a thermometer out there that would work well for this? I just need some help on learning about these because I've done a little research but I'm still confused on how they work and if I could even use them. Also, is there a good website to buy these on? I could use a lot of little ones or one medium sized one (up to 1ft by 1ft) but not too tall.

Topic by oabf19 10 years ago  |  last reply 10 years ago


Controlling peltier module temperature base on CPU temps?

Can i use PWM on the motherboard or do i have to buy a separate controller? I plan to use it on a high TDP CPU like the Xen E5 1650v4.

Question by PhuckhangN 9 months ago


Does anyone know how you would build a temperature controller for a (Peltier effect) thermoelectric plate?

I want to be able to control the temperature.

Question by I_AmThe_Eggman 9 years ago  |  last reply 9 years ago


Any knowledge on a peltier cooler thermoelectric cooling module

Needs help putting assembling a thermoelectric module for a possible inventing.  Suggestions on the supplies and parts needed

Topic by jayhead 7 years ago  |  last reply 6 years ago


Building a stove fan using a CPU Heatsink & Cooler

Hi All, I'm looking to build a stove fan and was wondering if It would be possible to attach a peltier to a CPU fan & heatsink like the one attached? Thanks!

Topic by mrawat 6 years ago  |  last reply 6 years ago


connecting peltier element to 12v car socket? Answered

I have 150W peltier element, and I plan to build a mini  fridge for my car, so I was wondering if its safe to just directly connect peltier element to 12v car cigarette socket with 2 in parallel attached cpu cooling fans (12v 0.15A). Can it be done, or any other sugesstions?

Question by xtony666 6 years ago  |  last reply 6 years ago


Trying to create a cooler that plugs on the mains. How should I make it

I want to use this item (peltier module) to create a cooler. It will use a fan + heatsink to blow cool air. I dont have much knowledge in circuitry (only highschool level) so I wanted to know what I would need to create this and how the design should be. Thanks

Question by freerun 9 months ago  |  last reply 8 months ago


Anybody working on cryolipolysis? Answered

I am looking at using a pair of Peltier panels to make a "spot reducer" using cryolipolysis. Cryolipolysis is what the Zeltiq machine uses to freeze fat cells such that they dissolve. On a bodybuilding forum they were talking about using cool-paks, those gel-filled plastic blocks that you put in the freezer.  My idea is to take a hand clamp and mount the Peltiers to it. I may need cooling on the hot sides, for that I will probably use liquid cooling blocks from computer CPU coolers. Then, you just clamp those babies on your love handles and crank up the juice. "Animal studies show a fat-reducing effect starting at around minus 1C, with the plate in place from five to 20 minutes." Since Peltiers get about 65 degrees C in differential, and room temp is about 26 degrees (warm room!) it will be a piece of cake for the junction to chill off those love handles. Would not be hard to put a temp controller on it to protect from frostbite or from burning up the junctions. Before you scoff, a Zeltiq treatment runs $700!

Question by Exocetid 8 years ago  |  last reply 8 months ago


mini fridge upgrade

Hello everyone, I found a Thermoelectric mini fridge at the dump a couple weeks ago and so far I have been disappointed with how cold it gets so I figured I would replace the peltier chip with a higher wattage one, the original ran on only 12v with 60watts but the new one uses 16v and 192 watts, so unfortunately when I switched the chips the fridge makes a clicking noise presumably from drawing to much current. the questions I have are, how can I build or cheaply obtain a variable (it would be nice to control power) 16v 12amp power supply or modify the existing board to output more power, would it pose a problem to run the fridge with no load attached to the previous 12v supply, and is it necessary to replace the fans with higher power ones? any other advise would be much appreciated, thanks in advance :)

Topic by rickyfelten 6 years ago  |  last reply 6 years ago


how to make a circuit board

Circuit board I need to make a circuit board for a project. It is all 12vdc, I have a 1a fan and a 6a thermoelectric device one setting 1, plus another 6a on setting 2, and a 3rd on setting 3 So 1 is 7a 2 is 13a 3 is 19a How to make the board. Also a second device has the 1a fan plus a 4watt element, plus another 4w on setting 2, plus another 4w on setting 3 So 1 is 1a and I think 0.4a= 1.4a 2 is 1.8a 3 is 2.2a. I think

Topic by Johnieahenderson 2 years ago  |  last reply 2 years ago


How to evaporate/liquify acetone using peltier element?

Hello, I’m Georgios Grigoriadis and I’m trying to build a machine which could evaporate acetone and the liquify it. I want to use the Peltier element. My questions are: 1/ Is it possible to heat a metallic bowl, using the Peltier element, in order to to evaporate the liquid inside it (acetone) ? 2/ After having evaporate the liquid ( in my situation is acetone) I want to take the vapor from a tube to a metallic closed container, on which ( from the outside side) will be stuck a Peltier modules. Is it possible, using the Peltier module to freeze the container in order to liquify the (acetone) vapor? I also want control the temperature of the Peltier element but also how many time the Peltier module will work. Do you think that it is possible to use the Peltier modules in order to do that I want? If not what do you propose me ? Thank you very much for your interest and for any help. (I’m sorry if my English isn’t perfect ;), if something is very difficult to understand, don’t hesitate to tell me)

Question by GeorgiosG1 1 year ago  |  last reply 1 year ago


Making a mini fridge. How many peltier units do i need?

I want to make a mini fridge rather than spend the $80-100 for one. I wanna make it 3'x2'x2'. How many peltier units would i need and do i need heatsinks for both sides (hot and cold)? Also do i need a converter to change the 120v down to something the peltier units can handle?

Question by sj898 8 years ago  |  last reply 8 years ago



Minimum voltage/amperage required for peltier cooler?

I want to connect a couple of computer fans and a peltier cooler to some solar cells, but I want to keep the amount of electronics to a minimum (for the sake of KISS). Assuming the fans and peltier are rated to run at 12V, and I connect the solar cells to provide 12V at peak, will I be able to leave it connected all the time, i.e. when it's night time there is no electricity being provided, maybe in the late morning there is half the electricity, and in the afternoon sun full power? I guess a simpler way to phrase my question is: Can these devices be run with much lower voltage or amperage than they are rated for?

Topic by littleb28 7 years ago  |  last reply 7 years ago


How do I drive a Peltier Cooling Plate with USB power? Answered

I just ordered some of these 20mm x 20mm Peltier Cooling Plates and would like to power them with a USB hub. Their rated at max of 4 amps and a max 3.8 volts and I know that generally USB is 5V and 500mA. So I know I need to just reduce the voltage, but I'm not sure how to accomplish this. I think I could drive them at 3.5V and still be okay, Not sure if I need a voltage regulator or if just resistors would do the trick. Thank you Kurt

Question by KurtRoesener 4 years ago  |  last reply 4 years ago