Deluxe DIY Air Cooler! w/Built-in Radiator & Air Filter! AC/DC 12V! Low Temps (360 nozzle) solar op.

Deluxe DIY AC Air Cooler! Best DIY Ice-Based Air Cooler i've ever made! Combo Air Filter/Air Cooler! w/internal radiator! AC/DC Powered (12v 3amp 36 watts). can be solar or battery powered. works great in a car too. (on the 12v power socket). The Unit: air is pulled into the unit through a filter and pre-cooled. the internal radiator is cooled by the ice water and by the cold air in the cooler. the high performance 12 tube 120mm radiator that's used has a thick or 'tight finned' configuration for maximum cooling. and the "internal radiator" design means that all condensation stays contained in the cooler. very little water needed (only 1 gallon) - or about 1 inch deep in the bottom. start with pre-cooled water from the fridge if possible. once you place the frozen gallon ice jugs in the air cooler the water will raise up another inch and fully cover the pump. the unit works amazing! tested in an 80F(27C) room. cool air lasted 4 hours using 2 frozen gallon jugs and a couple of ice-packs. add 2 more jugs and you might get 8 hours. *solar power options are also shown in the video (along with a homemade patch cord) so you can easily attach the cooler to a 12v deep cycle battery or a 12v solar panel).
⭐ Parts List and details on the build listed below.⭐
✔ Note: a bilge blower motor (or automotive ac/heater blower motor) is required for it to work. regular fans lack the needed power.
✔ Note: the only extra thing I'll be doing is adding caulk all the way around the radiator for a perfect airtight seal.
✔ Note: the unit is no louder than a box fan (on medium speed). i can't hear the blower motor at all when I'm running a box fan next to it.
🟢 List of parts:
1.) Igloo ice chest (38 quart with wheels and tow handle) (from walmart)
2.) SEAFLO 3" in-Line Marine Bilge Air Blower 12V (amazon/ebay - only $15 if you price around)
3.) 3 in. x 8 ft. Flexible Semi-Rigid Aluminum Duct - dryer hose
4.) Three 3" worm gear clamps
5.) 8148 Spectre Air Duct Mounting Plate - high impact ABS plastic (found on amazon)
6.) Filtrete 20-in W x 30-in L x 1-in Washable Air Filter (found at lowes)
7.) AGPtek 12 Pipe Aluminum Heat Exchanger Radiator for PC CPU CO2 Laser Water Cool System Computer (or similar) (found on amazon)
8.) Mavel Star 12 Volt Small Mini Submersible Water Pump 63 GPH (or similar) (found on amazon)
9.) AC/DC transformer (5a or higher is best) (found on amazon)
10.) 12V plug (found on amazon)
11.) Velcro
12.) vinyl tubing
13.) piece of 2x6 lumber
14.) optional: caulk/construction adhesive
⭐🔨 A Few Important Notes on building it:
Make your unit as closely as possible to this unit. Don't skip any steps. Everything was done with a purpose in mind. A few examples: use the Velcro under the wood and on the radiator. it provides a 'cushion' between the plastic, wood and metal and absorbs any vibrations that might otherwise cause unwanted sounds. circular holes can be 2.5 inches to 3" inches in diameter. i used a 2.5" hole-saw. don't cut the air inlet any bigger than 2.75". the air restriction helps the unit work correctly. (my unit has a 2.5" air inlet hole). use the 2x6 piece of lumber. the motor needs a solid base and has to be at that specific height to allow for the proper 90 degree bend in the hose. the height also allows for enough room under the hose so that the air can enter the unit properly. definitely use the 3" flange. it's needed to hold the pipe securely in place. drill 1/16" pilot holes in the
plastic (before screwing on the flange). 1/16th may sound small but plastic is "soft" and you want the screws to grab very securely. only use a blower-motor. desk fans and computer case fans are much too weak. make sure to use a "mini pump" like i did. they run cooler than a regular sized pump and the ice will last a lot longer. the connection on both the radiator and the pump is 3/8" so all you do is press the hose on. you don't need any kind of adapters.

[@philipmatherne]

Finally a cheaper version of the icybreeze. I think I am gonna have to try this. Thanks for the awesome content.

[@desertsun02]

hi there and thank you! yes, indeed! a lot cheaper for sure. the units that they sell are waay overpriced. you can easily make this one yourself and save BIG money (plus if anything ever goes wrong with it you can easily fix it). if you buy a unit and it breaks down you have to buy a whole new one (and i think they sell them for $300)

[@offgrid2010]

By using solar or a solar charged battery (even charged elsewhere), to power devices that need it, combined with your ingenuity - WOW! Then add the bathroom sink - Super Capacitors. Double WOW! Great work!

[@ghostyty3071]

Genius, I live in CA, my daughter lives in Dallas TX, she has a critical ill child who received a organ transplant a few months ago, her biggest concern is how to keep her space cool during a power outage, YOU ARE A LIFE SAVOR Thank you for sharing....

[@marcosscheneider2586]

Man i'm amazed with this channel. Even though i have recently discovered it through the cinderblock furnace video, i find it inspiring that you are still posting. I have been for the past years getting away from plastic and mass produced thrash, and these videos are helping ven more with that. Thanks.

[@desertsun02]

hi there. i'm glad you found (and like) my channel. i plan on posting videos for many more years to come. most of the videos i make are the "timeless' or evergreen" type so they stay relevant for decades. feel free to comment on any of them. i see all the comments. i actually still have almost every project i've ever made.

[@nathanaelhanson2412]

Here recently in TN, temps are hovering near 100F and humidity about the same. Our central AC is struggling to keep up, this is a great way to help ease the load on the AC without using window or stand alone AC units. I have 500w in solar panels and 125ah in batteries. I will be putting a cooler like this together soon for the main living area. I always appreciate that you show step by step how to do things so we don't have to guess how you put it together.

[@stevew6138]

The plans just keep coming. Thanx Friend.

[@nagoyakuroi6353]

Been years that every summer and every winter il check you videos and i try to replicate them :D you are the only reliable channel on YT that actually does awesome DIY cooler/heater !

[@desertsun02]

hi and thank you. i highly recommend this one - if you're interested in DIY Cooler and Cooling. it's working so good i can't even believe it. it's the internal radiator and blower motor combo that makes it work so well. ...and at only 36 watts (3 amps) - super low wattage. this would be a great one for cars and trucks too. 12v power socket in an auto is usually rated 15 amp. just put one on the side seat or one or two in the back seat and you're all set.

[@nagoyakuroi6353]

@@desertsun02 i will replicate it for the bed room and hook it up to solar panel plus battery that I already have thanks a lot for the fast reply 👍 and keep it making more and more heater/cooler ! Can't wait what you will do this winter ! Cheers

[@Mr.Grumbdy]

Thank you for sharing these creative gadgets. This is an excellent DIY cooling unit.

[@desertsun02]

hi and thank you!

[@ttucker2010]

Wow! Another fantastic project! This one's a winner!!

[@desertsun02]

thanks tom. glad you like it. i'm super happy with the way it turned out. the internal heat exchanger and blower really make this one crank out the cold air. and at just 3 amps.

[@TheSusu125]

I bought the cooler, ordered all the rest on Amazon, can’t wait to build this. This is the best one I’ve seen for no humidity. 12 volt I can plug into one of my power stations and use solar. This will enable me to save a lot on running my central a/c system. Thanks for sharing!

[@desertsun02]

i'm glad you're building it! it is one of the best i've ever made. i'm not sure if your power station is a jackery, but this unit should work great with those and ones that are similar to those. i think the 12v socket on those is 10 amps so you could run up to three of these units if you wanted too.

[@TheSusu125]

I've got an A3 Bluetti, a 180 Bluetti, an Allwei 1500, a Grecell e2000s, some Ryobi 300-watt inverters with 40-volt batteries, and a few others, most all of them have the 12-volt socket, also 2200 Predator inverter generator, a buttload of solar panels I'm starting to use every day now. In the mountains in CA PG&E was killing the power all the time during wind events, during one of these fire wind events when fire danger was really bad the State of CA decided to do a backburn right next to my town with a few inmates, they lost control right away, so the story goes and since all the firefighters were fighting the fire 30 miles away, most of them came home to ashes a few weeks later. Another Maui-type planned event. I am in TX and I know from past experience we must have some alternative forms of energy and ways to stay cool off the grid. Your invention really helps a lot of us. I like you have a list of what you used. I've sent your video far and wide. You saved me a ton of money as I was getting close to buying a DC solar mini split. This, or these rather as I will build at least 2 of them will save me from using very much solar. I'm hoping I can get a bunch of people making these, thereby using all the solar power savings to run their freezers and fridges. With the mini-split, I'd be devoting 1200 watts alone and would need a huge amount of power storage to run after the sun goes down. This uses a fraction of the power so a medium-sized power station could easily run it all night. running for a week 24-7 your's uses 5.8 kWh, that's $0.96 cents at 16 cents per kWh. That's a hell of a lot of savings for the investment. If y'all want your ice to last a lot longer make saline water with some salt. Those frozen packs you get when you order frozen or cold foods online last for 2 days because of the salt in the frozen water.

[@truthbebold4009]

​@@TheSusu125Hello! I was wondering if you could share what the total cost was for all the parts? 🙏

[@1980Felipemonteiro]

Amazing! Wondering if putting some sort of Reflective Aluminum Thermal Insulation at the bottom or walls could make it even more efficient.

[@21degrees]

Very Impressive...Please keep those videos coming !

[@desertsun02]

you bet. glad you like it. ✔🙂

[@ELKASIDAV]

What an on time diy project.

[@desertsun02]

thanks. i only wish i could have gotten it posted earlier. didn't think of the idea until first week in August though. (and 3 weeks to design and test it)

[@Here_for_fun]

I just built one of your other ideas and I def wish I would have seen this first. This is definitely an upgrade

[@bobcole3852]

Nice one, definitely a winner for a lot of peeps

[@desertsun02]

hi and thanks! I hope it helps a lot of people.

[@0.l.d.S.o.u.l]

This is one hell of a design !!! 👌

[@desertsun02]

yes, indeed. it might be the best one i've ever made.

[@a787fxr]

This one is very good. That fan is moving a ton of cold air!

[@desertsun02]

hi and thanks. yes indeed!

[@kevinleebailey]

Excellent 👍 !

[@swatteam2002]

well done sir, a long time follower

[@desertsun02]

hi. thanks and thanks for following!

[@edwaux2929]

Great job. I have all those pieces. And a portable freezer to turn the water into ice off a solar panel and eco flow. I watched a bunch of vids. Decided your set up would be best. Glad to see how well it works. The filter, i was not aware of at the time of purchase. Seeing yours seems like a no brainer. The Y adapter is also a must after watching your Vid. 4 inch inline fan besides increase in airflow also seems like the best. The 3 inch has a higher pitch, which to me was slightly annoying. Wonderful build. Congrats on winning the air cooler wars

[@desertsun02]

hi and thank you! this unit is definitely one of the best air coolers i've built. it's been working fantastic. i'm glad you're building it! that's what it's all about.

[@DumpsterElite]

That's outstanding. About one eighth the price of a portable dc air conditioner. Yeah, you have to put ice in it, but look how much cheaper it is!

[@c-LAW]

Very cool!

[@MichaelR58]

Very cool video, thanks for sharing, God bless !

[@desertsun02]

hi and thank you!

[@sistergoldenhair2231]

Amazing!🎉🎉🎉

[@Sourpusscandy]

All it needs now is a remote control! Dude you keep improving! I’d like to be able to adjust the fan speed.

[@desertsun02]

hi. you can easily add in a fan speed controller. i've hooked those up to these blowers before. they sell some good 12v controllers for fans and blowers on amazon. a 3 amp one would cost about 7 dollars. it just hooks inline.

[@davidmoss2576]

Other than the noise I really love this build.

[@desertsun02]

hi. it's not as loud as it sounds. my camera just has the dual built-in microphones installed right under the camera lens (in the front of the camera). because of that it records the sound as if you're putting your ear right up to the unit. *it's actually no louder than a box fan on medium or high speed. i've fallen asleep with my head right near the unit a few times already. but if you want to make it quieter you can lengthen the exit tube on the front of it. the tube acts like a muffler (so the longer the tube is the quieter it is). another way is to use a 4" blower motor instead of a 3" one. the 4" ones are quieter. or use a different motor (but make sure it has the power of this one) because you need the power for the right amount of airflow

[@davidmoss2576]

@@desertsun02 Thanks for the reply, will definitely reconsider this. I built the ice in foam box using a fan before with poor results. I even tried the copper wire in front of the fan method with better result but still not great. I hope this method will prove to cool down my room much better

[@johnsaucerhunter]

Very Coool...

[@desertsun02]

yes, indeed! 🙂

[@UpperSkyDJ]

Oh so cool! 😊

[@desertsun02]

hi and thanks! coolest one in terms of temps and looks pretty cool too (imho)

[@tsunarun]

I have to choose to mount this one or the one with the 22 inch fan on your other video. Which is the best 🙏🙏🙏 Apart that really cool video 👍

[@THEQUALITYHAYMAN]

Great video. The best one you made so far but there all good. I have a question.. what would happen if you put a 2nd heat exchanger in cooler. The 2nd one being under the air intake. That way no ambient air would come in to cooler just air that past thru the heat exchanger on the way in..would that possibly ler ice last longer?

[@bufarah001]

Move the heat pump to the supply opening, and install a horizontal partition a few inches below the radiator to separate the "wet" zone (water and ice) from the "dry" zone (air and radiator).

[@internetapocalypse4885]

This is a really good one. I might try it out. Just wondering if you put a speed controller on the fan to slow it down will the ice stay cooler for longer or is that something that needs to be regulated at the water pump?

[@desertsun02]

hi. you're right. you can just hook a fan speed controller to the fan. that will make the ice last longer (a lot longer if you slow the fsn down a lot). amazon sells lots of 12v controllers and they are super easy to hook up.

[@NaemeAwan]

Good 👍 bro hme b bna dygy

[@AhmadEusof]

Hi There, thanks for sharing the cool air filter. been following you quite sometime. just curious, what is the function of the air inlet? why if the difference if no air inlet. tq and keep it up for good work.

[@desertsun02]

hi. the air inlet lets the room air into the unit so it can be cooled down and released back into the room.

[@WholesaleTurbos]

Was your frozen jugs filled with salt water? Interesting if there would be a difference in temp vs run times compared to just water but it will take longer to freeze too. I experimented with something similar a few years ago with a double thick 120mm PC radiator. You can also get 240 and 360 and in single and double thickness. I would opt for the larger radiators with a Y junction. These inline fans have enough flow and pressure for it. I would also go for a larger inline fan, they run quieter but flow the same withou much pressure loss, some have adjustable speed. To run a bigger radiator you might need a new spot for the intakes, closer to the outlet may suck in cooler air which could be good for run times. If your esky lid isn't insulated, fill it with expanding foam before drilling.

[@desertsun02]

hi. i just use standard tap water (no salt used). the water will freeze down to the temperature of the air in the freezer. i just have a standard kitchen fridge/freezer; but if you had a freezer that went down even farther (say to -20F/-29C or -30F/-35C) the ice would be that same temp (-20F/-29C or -30F/-35C). salt is an option too, but like you say, it would take longer to freeze.

[@paminta143]

Question good sirs. What if the liquid used inside is coolant/anti-freeze? What happens?

[@slimdusty6328]

Very interesting. Does it cool down a whole room a bit after awhile. Or are they only to feel cooler when sitting right up close beside them

[@desertsun02]

hi. this unit can be used either way. it pumps out a lot of cold air and should easily cool down a smaller room with no trouble.

[@slimdusty6328]

@@desertsun02 thanks. Very interesting to see all your different designs. You do great job of creating. Also you do a decent of of explaining too. Cheers desertsun02

[@drake8192]

Will this setup cool down a grow tent? And have you ever thought about using a thermostat?

[@desertsun02]

hi. it's a pretty strong unit so it should be able to. i hadn't thought about using a thermostat before. should be an easy addition. amazon sells the 12v ones cheap.

[@neverwinsthegame]

Are you planning to do an indirect evap cooler with this type of radiator? Wonder how it holds up against the other type of radiators you've used in the past.

[@desertsun02]

'ill give that idea some thought. i hadn't thought about that.

[@pongsapornchaiwiseskul7141]

Excellent. With 2 ice blocks, how long can it last?

[@desertsun02]

i'm getting about 4 hours with 2 ice blocks. but it will depend on exactly how hot the air is that's going in and how solid the blocks are frozen etc... add another block or two and/or some blue ice packs and you can get 8 or more. a fan speed controller can extend the cooling as well.

[@Sourpusscandy]

Another question…. So I have two of those window fans, about 12 x 26, has two small fans, I’d like to make the cooler, pump, radiator rig in front of the fans, to run them across the radiator, blow cool, fresh air in.

[@desertsun02]

hi. it could work but you'll have to use a more standard style radiator with the wider fin spacing. a window fan wouldn't be strong enough to pull much air through the type of radiator i used in this project. i'd try something like a 'hayden transmission cooler' (radiator) with a window fan. i've got a few vids with the hayden radiators. they pair up well with standard fans

[@dathanjackson2743]

Would it be better to put the radiator on the inlet?

[@tsunarun]

Last question Can I use (inline duct fan) exhaust fan like the Brogachy Extractor d'air 100mm for exemple

[@desertsun02]

hi. i'm not sure about that specific fan (but the main thing is to use a powerful fan - like the blower fan i used). it has to have a powerful motor for it to be able to pull the air through the type of radiator i used.

[@chase_h.01]

Would you say this design is better than the previous version with that tubular radiator?

[@desertsun02]

hi. i can't say for sure but i can tell you that this air cooler is producing some of the coolest air temps i've ever gotten. it's one of the strongest air coolers i've made. 😎⭐

[@lauriethompson1480]

This seems awesome ... I just ordered everything on amazon except the ac/dc transformer ... I dont know what to get there. Is it possible to get a link of what to buy. I want to get all the parts and "surprise" my son with a project for him to make for me lol

[@desertsun02]

hey there. that's awesome. this is one of the best. since the unit only draws 3 amps i'd say to go with a 5a to 6a power supply (or higher). i use a 12v 15a supply made by rowpow. i use that one because it's the smallest one that i have. (i've also got a 30a one). here is the link to the 15a one that i use www.amazon.com/Converter-Adapter-Transformer-100V-120V-Cigarette/dp/B0797SHG1K/ref=sr_1_11?crid=TD7EP5G3JME1&keywords=ropow+ac+to+dc+12v+15a+power&qid=1693083879&sprefix=rowpow+ac+to+dc+12v+15a+power%2Caps%2C179&sr=8-11 the best way to find these kinds of power supplies is to search for Ac to DC converters on amazon. here is a link to a smaller (5 amp) one. it should work great. it's only $14.99 www.amazon.com/ALITOVE-Converter-110-220V-Cigarette-Purifier/dp/B075FPQ2YQ/ref=sr_1_5?crid=DW3LUAP7DFKW&keywords=ac+to+dc+converter&qid=1693083950&sprefix=ac+to+dc+converter%2Caps%2C180&sr=8-5.

[@lauriethompson1480]

Thanks so much! I used your link appreciate that! Texas grid always questionable and love the idea of some back up relief! Thanks for sharing your ideas! Great channel.

[@zander9486]

Hi!🎉🎉🎉 Would it be possible to make a small tankless water geyser from your design of solar panels + a couple 30w ptc heat elements + a copper tube with copper sheet? In a previous video a while back your design got the copper sheet over 200c in about 10secs. So im thinking water should get 60C easily ? Thanks🎉🎉🎉

[@desertsun02]

i'll have to think about that one. i've got ptc water boilers so they can get the water pretty hot.

[@RossmanGarage]

Where’s the new videos dude you make some great DIY videos! Got anything I could use here in humid Florida?

[@desertsun02]

hi there. if you're interested in air coolers, the air cooler in this current video is one of the best and works great even in humid climates. note: it's the "non-ice-based" air coolers (like the evap/swamp coolers) that don't work in high humidity. the "ice-based air coolers" are a 'phase-change' air cooler so they don't add any humidity to the air that they are cooling (and work well even when the humidity is high). my next two videos are an atmospheric water generator (AWG) and a Peltier Powered space cooler. the AWG extracts water from the air so it's great for humid areas (the more humid it is the better it works). and the Peltier Powered air-cooler should work well in Florida too. the peltier video will probably be posted first (in about a week)

[@AudioGuyBrian]

What is the humidity value for the air coming out of the thing. I have seen some where the air never touches the inside of the cooler and all the cooling is done with copper coils in a tube the air passes through.

[@desertsun02]

hi. it stays the same. the humidity level doesn't measurably increase or decrease. the ice melts during the cooling process ("phase change" cooling) but very little evaporation takes place.

[@user-qc7rp8xs4f]

Ima need to build one of these could imagine how much this would save me compared to 10000 btus

[@davemarykosanke7126]

Could you please help me understand why it's important for the air inlet hole to be smaller than the air discharge hole. Thanks!

[@desertsun02]

hi. I designed it that way so that there would be some 'drag' (or restriction) on the motor to slightly slow down the airflow. i figured i could expand it or add another hole or two if need but it worked out great with just the one inlet

[@angiedorsett6775]

Have you done a comparison in runtime against the other unit you built with the transmission cooler on top, with the same amount of ice, i’m guessing the reason this unit is colder is because it’s pulling air through the hole. It goes across the ice, like a swamp cooler, then goes across the small radiator which causes the air to be colder. Also, the velocity of the fan is reduced due to the bends in the hose, which would cause the air to be colder

[@desertsun02]

hi. i haven't done a comparison of the two but i think it helps that the air is precooled across the ice, before it goes through the cold internal radiator. that is also dual cooled (my ice water and just the fact it's inside the cooler. overall, this unit seems to have a very high efficiency. it definitely gets the coldest and lasts a very long time. ...btw, there has been some confusion online lately about what a swamp cooler is, so this last part is just a note about 'swamp coolers'. there is an advertiser out there that has been calling the ice-based air coolers 'swamp coolers'. they are misleading a lot of people. the term swamp cooler' is just another name for an "evaporative cooler". swamp coolers don't use any ice at all. they just use 'wet pads' and water to cool the air. the ice-chest air coolers that use a fan to blow air over ice aren't swamp coolers. they are just "ice-based 'phase-change' air coolers". ...and like the unit in the video, those units don't make the air sticky or humid either. that's because when you blow air over ice it just melts from a solid into a liquid (but it doesn't evaporate - so no humidity is added to the air).🙂

[@tsajer8122]

what would you guess to be the effective running time for the 2 gallons of ice?

[@desertsun02]

about 4 hours (with room temp in low 80's (f). maybe even 6 hours (but it would just be kind of cool at that point, not super cold). if you added another jug or two or some ice packs you might get 8 hours or more. another way to extend the run time is to add a simple fan speed controller. very easy to add one of those and if you run blower at half-speed you might get double the time. amazon sells 12v fan speed controllers for as little as 7 dollars.

[@tupapau1241]

Man it's gonna snow 🌨️ in your house 🏠 😂

[@kathykidd2756]

Another question ~ you may end up saying this but what about humidity? It’s already so humid I’m running a dehumidifier.

[@desertsun02]

hi. this unit won't add any humidity to the air. it even removes a little (by way of condensation that forms on the radiator and the ice blocks). any condensation is water that's being removed from the air. it won't remove as much water as an actual AC unit but any water removed from the air is a good thing.

[@kathykidd2756]

@@desertsun02 thank you!! I’ve sent the link to my brother ~ an architect ~ begging him to build me one. We weren’t born with the same brains ~ at all!! 🤣

[@shawn071]

So cool, does this set-up create allot of humidity? I just ordered all the parts to make your inline transmission cooler A/C.. Thank You so much for sharing these awesome ideas, much appreciated! Great channel...Do you think a 24" Transmission cooler would cool more than the 15" since it has more surface area?

[@desertsun02]

hi there. this type of unit doesn't create any humidity at all. the cold water in the unit cools off the radiator and then the air in the room is pulled through that cold radiator (cooling it down). the process itself doesn't evaporate any water so no humidity is added to the air. an interesting sidenote is that condensation sometimes builds up on the radiator and when that happens the unit is actually pulling water out of the air. (so it actually removes some humidity from the air), not as much as a regular AC but some.

[@alchemyamber]

I need help please. I followed your directions exactly and ordered all parts to spec. I can't get the room to cool though and my temps coming out are max 55 but vary into the 60s. The cooler is filled with ice water and a steady 27 degrees inside the cooler.. I can't imagine what I am doing wrong?

[@desertsun02]

hi. it's hard for me to say (without being able to see it) but here are a few thoughts to consider. btw, 55F is a pretty good output temp. that's about as cold as any regular AC window units gets. i know it's not the 35 i'm getting but there are several potential variables with these units. i'm cooling a dry input air of 80F. if you're input air is warmer, say 85 90 or 95F it could increase output temps. another factor could be humidity. this unit will work in any level of humidity but drier air is easier to cool down than humid air, so that could be part of it. if you are using the unit in 80F air then you'd need to look at things like 'is the air getting around (circumventing) the radiator in any way. is the blower running at the proper speed? is it the same radiator? is the pump working properly (or too fast or slow). are all connection tight? that's a few things to check. but remember even 55F is a great output air temp. the lowest temp i've ever measured coming out of an AC window unit is 55F. as far as cooling the room goes... give it time to cool - these units work well in smaller rooms.

[@paminta143]

Question good sir. What if the liquid used inside is coolant? What happens?

[@desertsun02]

hi there. i couldn't say for sure since i haven't tried it but my first thought is whether the pump would hold up.

[@Jase0001]

What did you add to your ice blocks to get them 21°

[@desertsun02]

hi. i didn't add anything. they are just tap water. my freezer is set to about 0 degrees (f) so the ice will be much colder than 32. 0 F is pretty standard for a kitchen fridge

[@Musket85]

What about a NBC filter? I need to build one asap

[@desertsun02]

you could certainly experiment with different kinds of filters. i bet it would work well with lots of kinds. maybe even one with activated carbon

[@tsunarun]

One question what is thé type of radiotor and the size. Any information please,🙏🙏🙏

[@desertsun02]

hi. the exact dimensions are 6.2" x 4.65" x 1.1" but in general they are known as 120mm radiators. this one is a 12 pipe one but i think they have 16 pipe ones too. you can find them on amazon. for even more info check the description section of this video 🙂

[@tsunarun]

Thanks 🙏🙏🙏

[@kemalcemail3277]

You didnt show room temp Maybe for me that room temp,shows how much is diy ac efficient btw thanks its very useful video.

[@desertsun02]

hi. the house was 80F(27C) at the time of filming.

[@texastreasures1848]

What radiator did you buy ? You have a link?

[@desertsun02]

hi. check description section for details on the radiator. it's a 12 tube 120mm one (the exact one is listed). easiest place to get it is on amazon.

[@scottwadsworth9999]

Hi, is my radiator supposed to be wet or dry. My radiator is wet. Just wondering if I got a bad one.

[@scottwadsworth9999]

I think I figured it out. I think it was because of the outside Humidity. Humidity was 98% and rainy.

[@desertsun02]

the radiator may get wet if the dew point is reached. but it's totally okay if that happens. the water will just drip back into the ice chest.

[@scottwadsworth9999]

Testing after changing the radiator and lower Humidity. I was able to achieve 36 degrees. Whereas, I was only able to get the he temp down to 58 degrees before. Thank you.

[@kathykidd2756]

Sure wish you made and sold these! 😂

[@desertsun02]

it's really pretty easy to make. maybe you know someone who could help you?

[@kathykidd2756]

@@desertsun02 my brother!!! ☺️

[@kiltedpiper98]

What was the ambient temperature? It would be good to compare the difference in the air temp going in and coming out.

[@desertsun02]

hi. the ambient air temp in the house was 81F/27C. so roughly a 45F drop (25C drop). 81F down to 35F (27C down to 2C).

[@reynaldoaleman1602]

But for how long??? Plastic don't dissipate the cold than the aluminum, how about the drain amps x hours, the plan will be a battery bank to will run from 10 pm to 6 am, a design don't build mold in an RV or van, I have an super quiet inverter with an ac window 5,000 but looks from the ghetto plus the noise and I will like stealth a.c. sistem, here in Texas then humidity is killing

[@jrhoover3119]

Do you sell them. If so how much?

[@desertsun02]

i don't sell them - but you can make this for 85 to 90 dollars (and take $30.00 off of that if you already have a similar sized ice chest). it's well worth building if you can. i'm loving it. cools a room in minutes. the interal radiator and blower motor combination really worked out great

[@wadeharris4700]

These vids are cool and are going to be super helpful when I build something similar. Just a slight critique on the video maybe try to find better lighting and background options when showing your work. You can show us your results with the temp gun and tell us it worked in your bedroom…. Without showing us your dusty ass bedroom. Take care

[@brokeassbot]

I need 12,000 btu minimum in my hot minbus