Build a Air Conditioner Using Peltier 

If anyone is wondering, this is how they make heating and cooling seats in cars. You don't even need to turn the peltiers over. You just switch the polarity. He may have made an AC for the summer. But he also just made a heater for the winter.

As an Engineer to a colleague - I just love how you placed your power source cables right on top of a 70 c heat exhaust. Now, that is just a beginning of an ocean of problems for this - wrong - toxic (nitrates producing) potentially explosive assembly.

You went to all that trouble to produce this, and the whole point was to show the cooling effect, but never put a thermometer in front to show how it cooled. Why?

i was waiting for temp. test at the end

Unless your going to be hanging the back outside a window your making more heat on one side then producing cold. Plus the electric for these are high.

It would be nice if you showed us the ambient temperature as well as the output temperature. We would also like to know the total energy consumption. Hard to know why you overlooked those critical items.

Without the hot side being exhausted to outside you will actually heat the room. What happens to all the condensate from the cold side? You need a drain pan. Back to the drawing board.

I recommend putting the AC at a window to create temperature differences. Overall, nice work!

Nice Room heater. Great for cold Days in Winter.

An amazing concept, however, unfortunately the most inefficient air conditioner in the world lol

I love how the heat from the peltier just warms up the room more then it can get cooled down

I bet this tech will get more efficient over the years and will replace current gas systems

i made a similar project few months before....in my design i just used two peltiers (consumes only 5A each)...in order to increase efficiency you need to pulse the input current...by using an IGBT or a MOSFET. the peltiers can handle 2x more power when its input supply is pulsed at high frequncy, and also removing much heat from the hot side can improve its performance...say pressured gas loop.... PS: i made a refrigerator..not an Air Con..cause there would be a lot of work for an isolated air con.

1- the fans on the front are not close enough to the cold sink, causing a not very optimal air flow. 2- The cold sink side is probably going to build up condensation. 3- Hot air in the back will just go around to the cold side, and leave the room hotter than it was before. Peltier elements (same system like this), generate heat, they do not cool. 4- Might work ok as a dehumidifier, or a space cooler, but that's it.

Nice job man.......!Great .I like it but you can add a drain pipe for water of ice when it melts .Thanks a lot .keep going.

Eficiencia muito baixa para o uso "domestico:... peltier = 400w, (100 btus + -) 24h/D = 9.6kw A/C = 7500 btus 900w 10h/D = 9 kw 75 vezes menos eficiente, ou seja: "custa" 75 vezes mais em energia. Mas achei interessante o processo de montagem! Deu pra aprender algumas "tecnicas". Obrigado por compartilhar conosco!

Nice build, there are a number of reasons why this won’t be effective though. Peltiers are 2% efficient, that’s the first. Not having said that it was for a particular size area or any specific application it would have been good to see the temp of the cold air expelled. I’d like to see this principle, or indeed this particular model adapted to a cooler box. The heat pump effect would not be an issue. Having said that it would be too “power hungry” for a mobile application. So I guess “Home made Beer Fridge” might be the go. The other interesting point with peltiers is that they can keep a small area or amount of medium very cold but apparently cannot get the initial temperature drop to their efficient operating temperature with larger areas. Cooling a circulating fluid was mentioned in a few of the comments , now that MAY have potential. Just Saying

Smart idea, neat and well organized work but... at least you could have put a thermometer in front of it to show us how efficient is your set.

p.s. just in case any haven't understood, you mount this inside your house to an external vent or to an open window and use board to block up the rest of the space. If you just plonk it on the coffee table and turn it on you wont find any difference unless your house has stopped obeying the laws of thermodynamics. Neat idea friend.

I like it... good demonstration of the principle.

Cooling and heating up the room at the same time :D lol

One of the better ones that I've seen made in youtube. It's always good to have the correct tools. Makes projects a lot easier and cleaner!

hot and cool...If you don't remove the heat, it's not much use. Good job.

Exactly, as many have suggested, you need to vent the hot air to outside.

Peltier is making more heat than coolness, so if it's supposed to work the hot air must be discharged to the outside.

I think you should have placed a thermometer nearby to measure the temperature generated by the box.

good idea ....... for air conditioning.but peltier suits to refrigeration of both hot food items and cold food items as we fix peltier modules with an insulating material at centre..chilled side is used for cold food like ice creams and drinks.,,,and hot side is used for bakery items like puffs,rolls,etc....so that its heat is also be utilised with mini refrigeration

the room just got hotter with this heater

peltier = 400w, (100 btus + -) 24h/D = 9.6kw air conditioner 7500 btus 900w 10h/D = 9 kw

This is a neat idea although it would never be super efficient or a high output cooling device but it's definitely a fun project, some ideas that would improve the design would be: first you need to vent the hot side out of the room for two reason one is you don't want that heat circulating back into the room but mostly because as that heat circulates it continues to heat those peltier chips and that lowers the cooling efficiency, remember as the hot side heats you lose cooling so circulation away from this side is key. Now another design flaw I seen is on the cooling side, you should of directed the flow of air pass the the heat sink along the aluminum fins. Put the intake on one side and the exhaust on the other and drop the top lower so it is close to the fins and forcing the air to run through the fins and not around it then the air will cool before it exits the exhaust vent. These are just a couple thought for what it's worth. This is a neat project and looks like fun thank you for sharing.

Will work great in my crane at work that doesn't have a/c and only crappy little windows. Thanks for idea.

Very good way to saw the branch on which we are sitting. Already, an air conditioner with a classic refrigeration unit is not very ecological, so what about something like this with even more polluting components? It's a big big waste!

To reduce the wattage, put seabeck devices on hotter side and submerge another side of seabeck devices to generate little electricity and heat the water to be used for other kitchen purposes.

A very informative practical video just requires some V/O as well. I’m not sure about how well it actually worked but you are very good at measuring & building with Aluminium. 😀

if you add some watercooling devices to pick the heat and move it away outside, and if you use 12 volts solar power, you can get it efficent and cheap, if you need cool air in the sleeping room created by sunlight...

Can you please suggest me if i want to use 4 127015 peltier module at same time so how can i provide sufficient power to them...

congrats, you built a heater ;)

why bother to make this if you dont show us the output of the box. Temps power used etc.

Bade cooler me set karke Vedio banao

should have mounted a water cooling system on the heat side, and diverted the hot water to an external cooling unit outside of the house, that would have made the unit much efficient

Id love to see the video end with a thermometer in front of the unit to show its actual temp of the output air. And one in the back to see if the cold output is higher or lower than the heat generated to provide the cold.

The peltirr device will eventually stop producing a cold side just one side that is significantly cooler than the other but the if the hot side jumps up to a crazy temp you will have a warm box

The idea is nice. Would maybe use heatsinks like the cold-side one for both sides and then have the fans blow in one direction over it making it possible to exhaust the hot air out of the room.

Good job on making a solid state air conditioner( no compressor) ,that is awesome!

Use glasswool insulation to insulate the inside part from the outside part. Also use a closed-loop cooling system using a mixture of car antifreeze and water (1:1).

me parece bueno, solo te falta agregarle algun conector tipo manguera para que saques el calor hacia otro lado y no elimine el efecto

You are A Perfect Teacher 👌👌

It's good ideas PUT us need Experience

This is actually an electric heater....

Ola Hello, this is brazil. I really liked your channel friend.

Super work. but If you dont sweep the hot air out of the room, the cooling effect will be almost nil.

This idea is very cool,but the peltier's heatsinks are too small.This will make the peltiers too hot.You can change some big heatsink.

By one side produce hot air, by the opposite side cold air...... Sum is equal zero......

Can u please tell me what is the name of that sheet that u used for building this cooler is it plastic,cardboard or anything else please ans. Is this really works?🤔

Nice Room Heating Unit =)

Two thoughts on this. First, this would be really useful while camping provided you had a solar panel and a battery to hook it up to. Second, 5 ads on an 11 minute video?? Holy crap that's excessive.

OK. Measurements? Results?Effectiveness? Tempreature? What are you doing with the moisturisation?

That's an awesome video really, but i saw you should use Coolers in both sides because the cool expand better with one cooler, but is great the design and construction please tell me what material aré you using because i dont know what's that, looks resistent but almost you can cut It with a cutter, i want to know to use It too please

This mit also work really wall as a PC radiator cooler as well mounted on the the front where u mounted the green basket bottom or as fish tank water chiller similar to 1 of your builds keep it up it gives me few ideas for me to try 💡🛠

Appreciate your efforts , nice video . Hey can you tell me what is the temperature at the cooler and what is at the hotter part

faltou mostrar com um termómetro a temperatura que essa jóia da!

Ela produz calor e frio no mesmo ambiente seria complicado teria de ter uma forma de colocá-lo fora de casa e mandar o ar gelado para dentro tanto pelo calor da parte de traz e pelo barulho que gera um aparelho desse

Pues para que enfrie,la parte caliente del aparato..debe estar aislada de la habitacion..o colocada en el exterior,y el frio conducido..adentro.

I'm sure this guy will build his own private jet

nice but dude, you must encapsulate and add a tube to the exterior, this way the heat of the peltier is moved out and inside is just kept the cool air,

la puissance thermique rejeté par la partie chaude est égale à la puissance froid + la puissance électrique, donc ton système est efficace seulement si tu rejette la chaleur vers l'extérieur par exemple posé sur une fenêtre.

That is absolute genius, Kenh!!

Looked like way to much thermal compound. Thermal paste still has resistance. You should only use a thin layer.

Congratulations! Your system is less than 1/3rd the efficiency of a compressor/condenser evaporative system...

May you please let me know the material used for the box? It’s fantastic. You use a cutter but seems solid

A cool breeze is in the room. But hot air is also in the room.

Pleas make good incubator 🖒🖒🖒🖒🖒🖒🖒🖒🖒🖒🖒🖒🖒🖒❤❤❤❤❤❤❤❤❤❤ tanks man

This isn't going to work unless you radiate the heat outside.I built the same but the modification I made was that I attached a watercooled heatsink on the hot side and attached another water cooled heatsink outside the room with a large fan and interconnected both the heatsinks to radiate heat outside of the room. I also attached a water pump to regulate the water in the pipes. Worked very well. It can't really replace a real air conditioner but it's a fun project. I'm also thinking of using an arduino to make a bluetooth remote for it to monitor temperature on my phone and alter the fan speed. But again it's just a fun project and can't really replace a real air conditioner.

Great idea, but not usable this way. It heats and is cooling the same place. Its only transfered from one side to the other. Place Box outside and use pipes for cool air Transport from inside crossing the Cold side again back inside

i like it, you did a very nice job

Bro it will produce more heat then cool air in same room . Let thet heat output side be out the room

Looks interesting but that’s it. This thing is completely useless because it’ll output more heat in the same room instead of cooling it down. Because the one side of the Peltier gets cold an the other gets hot. And as the other side gets hotter the cold side will begin to heat up as well. Plus the hot air from the hot side is being blown into the same room you’re trying to cool down. It just doesn’t make sense.

great that you carried it out. I guess the cold air flow path is not in the right way.And need to reduce the speed of cold fan to let the air chilled before out.

Wow that's great, one question, the power supply you use is 360 Watts, right? For this project it works well to use a 240 Watt. Thank you.

Needs a secondary switch to turn on the cold side fans since you may want cold air blowing, not room temp air. Needs an exhaust vent to a window at a minimum. However, if you stored heat in water and could sewer the water so the heat is lost, that would be more effective standing alone. Very expensive cooling with required upgrades, only adds heat to a room without the fixes.

BELO TRABALHO!! MUITO CAPRICHO , PROFISSIONAL!!

there is one design flaw, air should come through heatsink at cooling side only, that should have been closed with another layer , so the blowers will get air through cooling fins only. Good Job by the way

con cuatro peltier puedes enfriar una lata de cerveza pero para hacer un aire acondicionado necesitarias muchas mas.

Good idea, good building skills BUT DUDE you didn't provide any Infrared Temps? Input/Output TEMPS or Watts or RPM, or CFM flow?? REUPLOAD WITH THIS!

there was no temperature checking before after?

cost of materials and labor, you could buy a small 0.5 HP air conditioner that is more powerful and efficient. this could be useful as in-car refrigerator for food and drinks.

Beber frio con un calor a tope !

Should be titled " How to build an inefficient fan"

🐸 very disappointing vid! Not even one temperature mesurement at the of the vid 🤣very well made box for birds though✔️

Nice room heater u got there

Excelente 👌, mi like para ti..

Bro air conditioning is not just making air cool it's also about controlling humidity, air motion. You are just removing sensible heat not latent heat. So don't make you confusion again bro. Don't feel bad just trying to help..🤗🤗🤗

The problem with this air conditioner is it's efficiency ,because peltier is producing heat and it produces cold and it also consumes 240w of power.

if you left it where you could open it and fill all around the heatsink with ice it would work alot better in my opinion also you should do some tests and show how cool the air coming out is. not just end the video so everyone makes it to find out it does nothing but blow hot air lol definitly needs some improvements for sure i think it would be a decent design if you made it water resistant and to were it could be filled with ice every now and agian for extra cooling lol kind of like the diy bucket air conditioner do I think if you combined the 2 It could be really nice for a smal area like a tent lol

Excelente 🇩🇴🇩🇴🇩🇴🇩🇴🇩🇴🌎

you make this on my request thanx dear i will try this

cade a prova do termometro? como vou ter certeza que refrigera?

Nice project 🎉

Many thank to you Great work only i wanna to ask you is there Difference between 12706 and 19906 from more Effect . really thank you great work

When applying current to a Peltier chip, one side gets cold and the other gets hot. Good for picnic fridges. This AC is not energy efficient and the Peltier chips will deteriorate in a short time. The dissipation is lacking. You build well but study before building.