TL;DR
Portable Air Conditioners
Portable air conditioners can be a good solution for cooling small spaces, especially when traditional window units or central A/C systems aren't an option. However, they tend to be quite noisy [4:1]
[5:12]. Users have found them effective at cooling rooms, but the noise level might be disruptive for some
[4:5]. When choosing a portable air conditioner, look for models that have dual hoses, as these are more efficient and prevent negative pressure issues that can draw hot air into the room
[4:8].
Swamp Coolers
Swamp coolers, which work by evaporating water to cool the air, are generally not recommended for humid environments because they add moisture to the air, which can exacerbate humidity problems [3:2]
[5:6]. They are more effective in dry, desert-like conditions where the added humidity can actually be beneficial
[3:6]
[5:11]. In areas with high humidity, swamp coolers may lead to increased discomfort and potential mold issues
[3:2].
User Experiences and Recommendations
Users have shared mixed experiences with portable air coolers. Some have found them useful for specific scenarios, like cooling a bedroom or a small living space [5:9]. Others recommend using additional fans to help distribute the cool air throughout larger areas
[5:3]. It's also noted that while portable air conditioners can provide relief, their cooling power is limited compared to more permanent solutions
[5:4].
Considerations for Purchase
When purchasing a portable air cooler, consider the size of the area you need to cool and whether the unit's specifications match your needs [5:1]. For those who are sensitive to noise, it might be worth looking for quieter models or considering how the noise could affect sleep or daily activities
[4:9]. Additionally, ensure that the model you choose has a reliable method for venting hot air outside, either through a window or another outlet
[4:10].
I just finished Andor and I absolutely loved it, every minute of it.
Me too! Just finished it last night.
Curious how’d you find your way into this thread as a non SW fan?
I enjoy the space wizards as much as anyone, but I also enjoy stories of the rest of the universe. The average guy as well as the exceptional hero.
Diego, Genevieve, Stellan, Denise, and Kyle. There arent enough awards for all of the legendary performances in the show
Andor is the type of backstory I was hoping to get with Solo. I don't hate Solo by any means, but it was filled with attempts to explain everything Han says in the OT. Andor doesn't try to jam those explanations in, Cassian is a badass from the start and they let him be one.
The show was fantastic. It was so much better than it had any right to be.
Maybe a hot take, but I don't really like live-action Ahsoka. I feel like she gets duller as a character the more we get from her in the live action.
I honestly think she peaked in The Clone Wars Mandalore Arc and Tales of the Jedi and it's been downhill ever since.
She was absolutely amazing in both seasons...shame that she didn't get recognized :(
I can’t swim…
I like to picture that he found a way out.
We are like the r/howardstern subreddit
If this weeeeeere to work. Maybe in the cabin air filter?
For cleaning the ducts you have special solutions you have to spray an entire bottle of into the cabin filter. Then put your windows down for 10 minutes on full blast.
Works like a charm but applying the solution is awful as in you cough your lungs out.
Theres this stuff called frigi-fresh u can spray on cabin filters for smellgood
I think there was a post on here about someone spraying some air freshener into their cabin air filter and it made their windows fog up since I think the filter was still damp
One of the luxury brands literally has like scent canisters that are stored under the dash near the glovebox and get atomized into the air after the cabin air filter. I think it's on the Audi RSQ8.
That is why you attach a 6 inch long 1/4 inch wide piece of aluminum foil to the back of your mouse. Damned static electricity keeps crashing the database server.
Dude hangs dong air fresheners
Static Guard spray actually works on just about everything safely and doesn't stain fwiw. Sensitive electronics and static didn't play with each other as well decades ago. I sprayed that shit on everything regularly after trying it on a problematic board.
LSD here?!
Instructions unclear, air freshener installed in cylinder head.
Engines deserve fresh smelling air as well.
Me trying to coax the last bit of use out of my dying car. Just give it whatever makes it happy.
Any type of swamp cooler in a small area is going to create moisture in your van/RV. And moisture is bad. You could end up with a mold problem
We have a redneck system we use occasionally... fan plus spray bottle or wet towel plus fan. If you use it in the desert in summer (we live in CA) then moisture isn't a problem at all because it is so dang dry. Now Florida, completely different.
The are what are called "swamp coolers" and the general principle is sound if you are either doing it at a massive scale for an entire building and can also dehumidify the air before it is transported through the building....or are in a dry desert. Otherwise it will only make you miserable in the long run by increasing the relative humidity in the area you're in to basically "make the walls drip" and still not provide any more cooling.
The only low power cooling system that does work is TEC plates.... But those require a giant heat sink outside of the area you want to cool and....lots of them (cause they are more efficient at low voltage...)....and then you'll need exterior fans to cool the heatsinks.... Aka... this still isn't viable for a vehicle ;)
Dry desert resident here. Outside of maybe 15 dyas a year, a swamp cooler is absolutely shit
even the tec (Thermal electrical cooling, I am guessing you are talking about a Peltier. ) sucks in 99% of stuff sold to consumers.
They're really great at heating a very small space, like a cooler, and so-so at cooling it. Shunting the excess heat outside is always the biggest issue when trying to cool with them.
I looked up "TEC plates" and only got results about tectonic plates, would you mind sharing a link that shows one? I'm curious now.
I belive he is talking about a Peltier, it is thermal electric cooling. They suck in 99% of the consumer use cases. all the cheap fridges you see for desktops like the xbox fridge are based on it. IIRC The only places consumers see a Peltier that is not trash is in the prosumer market with people doing nitrogen cooling and using it in these setups.
I have one I bought from Lidl last year. Big waste of money. You have to be about an inch from it to get any coolness.
Technology connections is one of my favorite YouTubers. Glad to see this video get post!
They are great videos. And plus on this topic. Felt perfect
This is an excellent breakdown with some solid groan worthy puns, glad to see others share technology connections.
I'm stuck living in a tiny terrible one-room apartment and can't leave until the end of this year. It's just under the roof on the top floor, so it gets insanely hot during the day. Worse, there is no air conditioner. Since I'm renting, I can't install one myself (yes, I've contacted the landlord, and it was a giant waste of time). I already have two fans, but the entire room gets so hot that in summer I still wake up drenched in sweat and feeling like death. Last year my laundry frequency doubled just from the sweat (sheets etc.). It typically is 8 degrees warmer inside my apartment than outside.
The only window is about 30cm tall. Most portable aircons you can buy fit into the window but they're usually 75cm tall. I've been to Yamada Denki and Bic Camera, and the sales people were less than helpful. One guy was really insistant that I buy this spot cooler that adds water to the cold air it blows at you--I explained that when it's so humid that nothing is evaporating and sweat is literally running off me in small rivulets, adding more moisture will make it worse, but he wasn't having it... The other things I've seen are mostly spot coolers, which seem to basically be very strong fans.
I've seen online some one-room portable aircons. Does anyone have any experience with these? Price isn't a big issue, nor my electric bill, I just want to survive the coming summer.
It there a reason you don’t want a spot cooler? In my experience, they work pretty well to cool and reduce the humidity significantly. I’d have to empty the bucket twice a day with all the water it drew out of the air.
Edit after reading your post again: I’ve never heard of a spot cooler that works by adding water. Are we defining these the same way? Spot coolers are what’s typically used in servers rooms to reduce the temp and humidity.
They're probably thinking of a Swamp cooler?
You're defining it correctly, I just seem to attract the worst staff possible. I think he was trying to just sell a humidifier and was making up nonsense.
I've only seen spot coolers (in person) in stores, and the store staff are generally less than helpful, so I was under the impression that they would not be effective for cooling an entire room rather than just a restricted zone they're pointed at. Is that not the case?
> I was under the impression that they would not be effective for cooling an entire room rather than just a restricted zone they're pointed at. Is that not the case?
It entirely depends on how big your room is and how much heat is getting in from outside.
Any of them work well with cooling. All are terribly noisy (much more than any regular air conditioner), so if you can't sleep with noise, it won't help your sleep much.
I used this one for a couple years. It doesn't look like an ugly industrial machine and works very well for cooling, if you can stand the noise:https://www.amazon.co.jp/-/en/Nakatomi-MAC-20-Conditioner-Spot-Cooler/dp/B079LD65G5/
You still need to connect the "hot air outlet" in the window, but it's just a ~15cm diameter pipe and it comes with the adapter already. In cooler mode you don't need to connect the water drain since it uses the hot condenser to evaporate the water (which gets dumped outside with the hot air).
And you are right, those "humidifier" spot coolers are just glorified fans and won't make a difference.
Thank you! That looks excellent! Noise isn't an issue; it's really just the godawful heat.
May I ask, about how effective was it? Like, any idea how much cooler it made the room? And was it okay if you weren't sitting directly in front of it?
For me it felt as powerful as a regular 700W split air conditioner. It made the entire (small) room cool. I actually don't point it straight at me because the air comes out too cold.
You only need to consider that the hot air outlet gets very hot and it's not insulated, so it may leak some heat back in the room if you make it too long. If you want to use it for many years, it may be worth buying an insulated pipe or insulating it yourself to save some power. But if it's for only one summer, I wouldn't bother, it's not that bad.
I’m gonna have to disagree. I tried one of these and it was total shit. I could never get it to cool less than 27C. The problem is that it only has 1 pipe for the outlet, so the “inlet” is your entire apartment. It’s creating negative pressure by forcing the hot air outside, which causes more hot air to be sucked into your apartment through the cracks around your doors and windows.
If you can find it, get the type with 2 pipes so it’s a closed loop system. Those should work much better.
And get it from Amazon and carefully unpack it. I guarantee you’ll be sending it back. Other places like Yodobashi will hassle you if you opened it.
i have this exact model in my room, it’ll definitely cool your room, but by god, is this thing loud. if you need it on for sleeping, recommend putting the temp low enough so that the condenser doesn’t automatically shuts on and off throughout the night (it’s a sudden noise that will wake you up for sure)
I used one of those for a few years to cool down my company's "server room". No problem. You just have to make sure that the water it produces gets emptied frequently or you have a way to let it run out of its little tank (into a bucket or sink). You can always open the window a little and create a relatively tight seal for the hose with cardboard or a bit of wood.
You should check, though, how loud this thing is and if you will be able to sleep, when it's running at full blast.
Spot coolers can be aircons, you just have to figure out how to ventilate the hot side to outside.
Something like this should be the type of thing you need. It won't have the efficiency of a proper aircon but if you need something, it should work. It's designed for exactly your problem (want an aircon but can't install one)
https://www.amazon.co.jp/dp/B093PVKCFF/ref=cm_sw_r_cp_apa_glt_i_1SQ3R8HSNK02G5VVGD59
It will cool the room, by how much, depends on your room.
I get central A/C would be ideal, and those window A/C units also do great in a pinch, but what about a situation that doesn't allow for either?
I think those bigger $300-$500+ ones should work well, the ones where you have to actually run the exhaust/tube out of a window. But then there's some stupidly priced tiny little ones like a $28 one from WalMart and IDK if I'd even trust that to cool off a tiny little closet.
Then there's the arctic air little guy that you'll start seeing at stores everywhere, but the box says it only cools off a 45sq ft area. I'm not even sure that would've cooled off a tiny little prison cell, but they sell out of these things every single year.
What about a slightly bigger $100 one from BestBuy? I'm sure it's better than the $28 Walmart one, but can you really keep your room cool at night for $100 without a window unit? How cold can they actually get if there's no coil/condenser and all they do is just evaporate a bucket of water that you fill up?
The ones that require water to work are simply "swamp coolers". They work by adding moisture to the air. Once the air is saturated with water they stop working.
The rolling air conditioner units work great for one room. I have one I keep in my bedroom for the hot nights, and it works great.
As someone who is literally from the swamps of South Louisiana, let me just thank you for making that connection. It makes sense that they work better down south where our humidity is absolutely insane.
During hurricanes when power would be out, people would make swamp coolers out of old ice chests and some battery powered fans. When you've got no electricity and it's 97° outside at 99% humidity, those things can be a life saver!
FYI swamp coolers don’t really work here because of our humidity levels.
Adding moisture to the air isn't what makes them work. Humid air feels warmer than dry air. The work by passing air over a wet membrane causing the water to evaporate. This cools the pissing air. It's basically the same as his sweating cools the body.
They are less effective in humid climates because the air can only hold so much water, so not as much water evaporates.
We have one from Costco. The pipes hook up to the window and it stands on the floor. I assume that’s what you mean. It works great. Not icey cold but a lot more bearable.
Yep, that's one of the ones I'm curious about, we saw those yesterday. Have you tried it in multiple areas of your home? Are those good for an area that's mostly closed off, like a bedroom? Or could they be useful for a more open area like at an office or someone's living room?
edit: sorry, just realized that the websites list the square footage that they can supposedly cool off
We have the costco window one as well. The trick is to also set up a couple of smaller fans to blow the colder air into other areas. Small house but we set it up upstairs where it gets the hottest. Then we have 1 fan tilted to blow downstairs and another that blows towards the bedrooms. Works like a charm.
I have one of these for my room and it’s amazing. We used it in our living room at one point and it wasn’t as cool because it was too big of an area, but it definitely helped. I prefer the ones that sit on the floor with the window piece, just take the window part out during winter and leave the AC where it is year round.
There's actually a really great video about these "portable" air conditioners." If you have no other option they're okay but avoid them if you can.
Back in May I bought a beefy window AC for my north facing apartment and it's been the best investment I've made this year.
I have this portable AC that works great. In the Summer I just take it in whatever room I'm in and as long as I'm within ~10 ft of it I've had no issues with it keeping me cool tbh
True! Here is a technology connections episode about these little "personal air conditioners" and how they are nonsense for most areas.
>They are loud as hell, though
That might be perfect! G/f and I are from the deep South where everyone grows up sleeping with big loud ass fans, we can't sleep without obnoxious amounts of noise. Mind if I ask what model or what I can search for to find it online?
Does it do the job? Yes depending on how your room is sealed. Portable ac will also pull out air from your room to exhaust the coolant heat so this will cause negative air pressure. If outside air is too hot then the cooling won't be as good. AC room has the radiator outside so you won't have this issue.
The compressor also is inside the portable ac so you will probably need to live with the noise.
What are the costs you have to pay for electricity to use the portable air on hourly?
Depends if you're bringing in the aircon legally or 'legally'
If its legally? 🙃🤔
Its surely gonna be cheaper in long run, but its gonna be much much louder. Its because the compressor and loud parts are literally next to u. Also, do urself a favour and buy a used one, they go for like $200-250, I used for one sem and then sold for around the same price, no loss. Unless they are really really old (like very discoloured plastic) it should have no issues.
Edit: u can find many ppl in nus selling their aircons, maybe in ur own hostel also haha
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I saw an ad for this portable air conditioner today; I’m a bit skeptical of the claims they are making. Has anyone here used these or a similar product?
Thats a severely over prices mini swamp cooler from china. They don't do so good. Ice helps but yeah a waste. What kind of cooling do you need?
They do make mini 1000ish btu DC air conditioners with a compressor.
I’m looking for a backup option to use during a power failure, AC failure, and on possibly camping trips.
The West Texas summer is very brutal if you live in a house with poor air flow and your air conditioner (or power) fails. Our AC failed last summer and the landlord took 6 weeks to get it replaced. The average humidity in West Texas is much lower than a lot of other areas of the state which is why a swamp cooler may be viable. I have a small generator and plan to get a larger one when I finish building my house and can move out of the rented house.
Zero Breeze makes a real AC that's battery powered and portable. It is incredibly well engineered and designed. It's only 2,000 btu and it is NOT designed to cool a space, it's designed to cool one person by blowing cold air on them. It uses only about 140 watts. It's a great unit when used properly. There's a lot of misinformation about it online; people saying it will cool a small cabin, etc. It will not. The best it can do is dehumidify a small space. It won't cool it. And it's expensive, $950. I've been using mine during a heat wave we just had. It works great at cooling me when I blow the air from it directly onto me. Works great at night too, blowing cold are onto me while I'm sleeping. I probably saved $30 by not installing my window AC units.
The swamp cooler you mentioned uses evaporation to cool the air. The problem with that is it makes the air really moist, so it's more difficult to breath. An evaporative cooler won't work in high humidity.
Swamp coolers can work, but a small contained unit will suck. Cheapest and best way to get the benefits of a swamp cooler is a small fan + spray water straight on your skin. If where you live is dry enough, a bigger semi outdoor unit may be worth it, you want to circulate the moisture out, instead of making your house a greenhouse. https://www.theplayalabs.com/swamp-cooler
Finally check out this elaborate evaporative system https://youtu.be/R_g4nT4a28U
Something like this would be fine for a small bedroom in the right humidity. You may also want a much larger unit like a whole house but keep in mind the cfm and size of the motor increase dramatically and can be more than you need. Humid air is hard to move around in the house.
They also tend to use low efficiency AC motors. On a solar system, if thats something you want to do, it would be better to use a permanent magnet brushless DC motor of a smaller size and decrease the pully ratio for a slower speed. You will lose some cooling but gain a lot of efficiency. Swapping a smaller dc motor would likely over work it if you don't change the pulley ratio.
You also have the option of direct solar power of the motor if you have a smaller motor. You can use DC-DC converters and control boards designed for that but usually for small sub .5 hp motors.
I would suggest a small window unit you keep in the garage ready for backup. for a small room, 5000 BTU or maybe 6-7000 BTU would be more than enough and they don't need that much power from the generator to run.
I love that channel! Lots of interesting videos about how the everyday things in your life work.
We have been using a portable for a sun room that gets poor circulation. Eventually we will replace it with a mini split, for the reasons he mentioned.
That's an overpriced swamp cooler. It might slightly work in Arizona or the sahara but that's about it. When water evaporates it absorbs energy, this energy comes in the form of heat. So swamp coolers do lower the temperature, but they also increase the humidity, usually making it feel worse than before. The only place they can really help is in places like Arizona where it's only 5% humidity and therefore have that extra buffer before you start feeling the excess humidity. It should also be noted that these don't work at all in places with high humidity because the water can't evaporate at all.
Saw the same add and was considering trying one. Can you briefly explain why they suck and is there a better but similar option?
There is no better similar one; they're swamp coolers. They cool through evaporation. That's their limitation; and it's a pretty limiting limitation. Can't get around it.
It's a swamp cooler. Other than in a single, very specific circumstance, they suck.
Swamp coolers work by evaporating water. Hot, dry air goes in one side and less hot but very wet air comes out the other side. If an only if you are someplace really dry and really hot then they're probably a net gain, producing air that's colder than what they started with and not terribly wet. However, if the humidity is already in the normal or wet range, two things go wrong. First, humid air slows evaporation, which means the thing doesn't cool the air much, if at all. Second, the final resulting air will be so humid if feels fucking terrible.
So, if it's 90F and the humidity is 30%, a swamp cooler works great. Today, it's 80F and 78% humidity here and a swamp cooler would just make everything worse.
Thanks for this! I had to get a portable, it was our only option but now I understand more about how it works. We only run it when absolutely necessary but still not looking forward to the elec.bill
I live in an apartment building with no air conditioning and wondering what people recommend? I haven’t used a swamp cooler before but I’ve heard that they work well. Thanks
buy a cheap window unit from walmart or something.
protip, do it before the big heat wave to avoid a situation like the great toilet paper shortages of 2020.
I've used an industrial Hessaire portable swamp cooler for the last four years and switched to small window unit this year for about $200. I'm kicking myself for not doing this years ago. It's so much better.
I second this - I've used window units and swamp coolers - if you have the choice go with the window unit.
I have a small window unit you can have for $20. Dm me. If you come get it yourself, I’d honestly trade for a pie or other desserts. It’s the smallest unit available. Only used one summer
I don’t understand window units. I’ve literally never lived in a building with windows that will fit one.
If you can, don't do this if you live on the ground floor - unless you remember to take it out every time you leave, it's no different then leaving a window open while the place is empty.
either one would probably work, but i would say that if you have an easy way to set up a window unit, a small AC unit would cool your place down a lot more.
Swamp cooler will also make it super humid and aren't great for small places.
I was wondering about this. Is the humidity really a problem with swamp coolers? I read online that leaving a window cracked helps with that. Right now I have a portable air conditioner but I’m considering a swamp cooler instead because the unit I have is pretty loud and doesn’t even work that well.
I like my swamp cooler a lot. It's been keeping the place in the low 70s over the last couple days, so I disagree that it's not effective when temps are in the 90s; but, mine is a big roof-mounted unit, not a portable one. I bet the window AC will be more comfortable and easy to operate than the portable evap cooler.
The portable swamp coolers work great but they won't really cool down your apartment that much. I would go with a portable AC unit or a window unit. The window units are cheap but can be noisy.
We have a portable to augment our regular AC. It was like $250 on amazon.
I would buy it today. Seriously today, as the heat is coming this week and those window or portable units will sell out fast.
You'll likely be much more satisfied with a/c. Window units are preferable to portable ones because the "hot" part sticks out the window, but overall they provide similar levels of cooling. I was contemplating trading my window unit in for a portable one that I could install more securely due to a recent rise in suspicious behavior in my neighborhood.
Window AC is the solution you're looking for my buddy
Portable ac’s are not very efficient. They work but short cycle and will get warm and then cool and over and over again. A wall ac unit and a little work you can pipe the hot air out of the back of the unit and outside. They are much better and cheaper to buy. I have played this game a lot this year.
I used two of these units to cool my house down when the HVAC went out and they worked surprisingly well for weeks of constant use during summer. Easy to roll around to drain water out of the unit, comes with enough ducting to route hot air out a nearby window, and a remote control.
I bought a toshiba from Home Depot 379.00 Alexa compatible use it with my controller, no issues and has dehumidifier they have another for 329 no Alexa wifi
I got the cheaper one and it works great! Keeps my small grow room cool
you could achieve the same results youd get from a top of the line portable unit as you would a ~$150 wall unit
Artic air better then nothing
Need help desperately, I'm sweating buckets in Bangalore but need to go home and need to keep an aircooler mini one so I can run it at all times 😭
Helpppp!
Air coolers won’t work. You need an AC
You can find mini cooler with fan and misting at saima marketing, 2nd floor, linking tower, opposite ladyghoshan hospital, mangalore.
This weather only air-condition will work. Air coolers need outside air. So wont work in humid situations like mamgalore
Any good ac recommendations?
Air coolers are useless with so much humidity. In summers only AC is effective.
Other months you can manage with cooler. Make sure it has 3 cooling mesh (2 side, 1 back) and not just 1 on the back.
best portable air coolers
Key Considerations for Portable Air Coolers:
Cooling Capacity: Look for the BTU (British Thermal Unit) rating to gauge cooling power. A higher BTU means better cooling for larger spaces.
Size and Portability: Ensure the cooler is lightweight and has wheels or handles for easy movement. Check the dimensions to fit your space.
Water Tank Capacity: A larger water tank means longer cooling times without needing frequent refills. Look for tanks that hold at least 1-2 gallons.
Energy Efficiency: Check the energy consumption (watts) and look for models with energy-saving features to reduce electricity costs.
Noise Level: Consider the decibel (dB) rating; quieter models (below 60 dB) are preferable for bedrooms or quiet spaces.
Additional Features: Look for features like adjustable fan speeds, remote control, timers, and air purification functions for added convenience.
Recommendations:
Honeywell CO30XE: This model is well-regarded for its powerful cooling, large water tank (about 8 gallons), and energy efficiency. It's suitable for medium to large rooms.
Evapolar EVA Chill: A compact and portable option, ideal for personal cooling. It uses evaporative cooling and is perfect for small spaces or desks.
BLACK+DECKER BPACT08WT: A budget-friendly choice with a decent cooling capacity (8,000 BTU) and good portability, making it suitable for small to medium rooms.
Choose based on your specific needs, such as room size and desired features, to ensure you get the best performance for your space.
Get more comprehensive results summarized by our most cutting edge AI model. Plus deep Youtube search.