Summers and the window air conditioners have been going hands in hands for ages. The kinsman between these duos is not like Puppy Love. Even when the world had not seen the split and portable air conditioners, since then, this old friend is toiling humanity in hot weather. These AC sometimes doesn’t go handy with installation and with looks as they are bulky and spacious. Today, when modernization has taken over the technology, we are listing down the most compact and best smallest window air conditioners for every home or room requirement.
The window ACs have their perks like they are not messy, relatively cheaper than splits or portable AC (just slightly), and fixed installations, etc. It utterly depends on your purpose what you look mostly into a window air conditioner. For the people who don’t blush on the size of these AC units, below is the list of top 10 smallest window ACs to make a perfect buying decision. How to choose a good quality window air conditioner? Let’s firstly settle the things into your knowledge.
Factors to Buy a Smart Window Air Conditioner Unit
So, here is the primary math you have to do for acquiring a smart window AC for your room and family.
Installation Must be Noted First of First:
As installation or window casing is the thing that makes this AC type a WINDOW AC (WAC). Logically, the installation of AC should be taken down as the first and foremost factor before making a buying decision. Always consider a machine that comes with an easy installation kit and proper informative user manual.
Also, the size of your window and AC unit should be cross-checked for better fitting and to avoid any cooling leakage.
The symmetry between Room and AC size:
This thing has created so much fuss in the market. Your expectations get wholly watered down when you pick the wrong size according to your room. Ideally, BTUs (British Thermal Units) help users to accept a right windmill unit that cools down the hall without any swings, twist, and barriers.
Noise Level needs ultimate attention:
A noisy AC unit might calm down your sweating glands but won’t let your eardrums to relax. Mostly, the users are highly delicate to loud sounds that some of these cooling machines make. For those people, these AC units remain a blessing with misfortune. Note down dB of the device which you are planning to pick. 50 to 60 dB is the range that looks at a prime noise level range.
Maintenance Should be Easy-Peasy:
Mostly, one of the red flags which these AC machines carry is the complex maintenance. More specifically, filters cleaning and washing become headaches sometimes. Removable filters or filters with separate chassis make a window AC viable for your consideration checklist.
Let’s move to the listing of models to look at which machine befits into your purpose.
Best Smallest Windows Air Conditioners
1. HomeLabs 5000 BTU Window-Mounted Air Conditioner
So are you looking for budget-friendly and compactly sized AC for your small bedrooms, RVs, study rooms, or baby rooms?
HomeLabs 5000 BTU unit has made to our list for one of the best smallest windows air conditioners for homes and apartments.
The size of the AC unit is really compact, having a dimension of 16 X 15.4 X 12 inches. With such aspects, any window in your house that ranges from 23 to 36 inches, can hold this 5000 AC unit like duck soup.
Similarly, on the weight side, you shouldn’t have to bug much as this window AC unit just weighs about 36.5lbs.
Installation is quick and easy. This AC model comes with comprehensive accordion panels, support brackets, screws, top rail, and window seal foam. Such window installation kit tools make sure the AC vented windows remain entirely sealed off, so cooling doesn’t get suffered from any leakage.
As this is a base model, let utilize this machine for smaller spaces like 130 to 150sqft. The AC inherits 7-speed fan settings with two-way airflow paths.
On the very front of AC facing, two turn dial knobs offer you to adjust the temperature and fan speed settings manually. So this means you have to make a scanty compromise on a lack of remote control and digital display.
However, if you want to use this AC unit as a constant running machine for longer durations, things go winsomely with its consistent performance.
The cooling performance is noteworthy for smaller bedrooms and enclosed rooms.
Except for white noise, HomeLabs 5000 BTU unit generates around 60dB of noise. It becomes magnificent in the day timing, while in the night time if you’re extra receptive to noise and sound of compressor, you may struggle with this unit.
The ERR rate of this machine is 11.1, which are fantastic numbers if you are really jumping to save your electricity bills. Even then, the hot and scorching weathers knock your door, this AC unit is ready to gear up against such circumstances.
The Post filters have anti-bacterial properties. Let enjoy the fresher and healthier air, and don’t forget to wash out the filters after every one month of use.
2. Frigidaire FFRA0511R1E (Best 5000 BTU Window-Mounted Air Conditioner)
Having multiple buying choices is great for selecting a better and worthy product against your investment. In this 5000 BTU category, we have this famous Frigidaire boy.
While comparing to our above model, this FFRA0511R1E window AC unit holds many similar characteristics.
On the weight side, it weights around 41 lbs, which is a little higher than the above model. While on the installation side and with 15 X 16 X 12 inches of dimension, this model is worthwhile for the same window measurements (23” to 36”). It also comes with a complete installation and windows kit package.
The 5000 BTU class is bare bones of AC BTU unit category. This specific category model also originates with a dehumidifier that can do a 1.1pints/hour job.
This feature appends an extra value to this machine. Nevertheless, in most humid weather, this unit strives with the drainage of water.
This Frigidaire machine comes with two-dimensional airflow, fan, and cooling settings. The airflow is best but comes at the cost of “Little” loud noise.
The noise level is around 59dB which is a little impressive from the above model. Still, this window AC unit is great for both day and night time use until you don’t have perky eardrums.
The 11.1 ERR numbers can represent the energy efficiency of this machine. A 12-hour daily use may calculate extra 20-30 bucks to your electricity billing cycle.
The cooling effectiveness comes in 20 minutes for a 130 to 150 square feet room that is undoubtedly an admirable job in most humid and warm conditions.
With such area coverage, let place this wall-mounted AC machine in small bedrooms, offices, RVs, and kid’s rooms.
A thermostat feature is also included in the feature’s list. But then, it doesn’t seem majestic and works in way conditional scenarios.
Plus, there is a washable anti-bacterial filter that keeps the air fresh from dust, allergic elements, and odors.
Many users have commanded that shipping is fast and easy, but the packaging doesn’t hold THAT reputation. In many cases, this AC unit has been shipped with minor damages and dents.
Nonetheless, no significant technical and mechanical damage is being reported so far.
3. Keystone KSTAW05B Window-Mounted Air Conditioner 5000 BTU Unit
The Keystone is not THAT well-known and “Brandy” thing, but when it comes to features, performance, and cost, it hammers many of the market competitors.
Mainly, bringing both the above-listed models into this race, this Keystone model is somewhat slightly more significant and weighty.
With the dimensions 15.5 X 17.5 X 18.2 inches and 45 pounds of weight, it also suitable for windows ranging from 23 to 36 inches.
This window AC unit also includes the installation kit, guide, and full informative manual guide for better assistance.
To win the aesthetic race, this keystone KSTAW05B model comes with a luminous LED display. Meanwhile, many AC units in this category arrive with rotatory knob controller temperature and cooling settings.
This keystone 5000 BTU window air conditioner prevails better sense with electronic controls through a remote controller. So you’ll have a better taste of satisfaction to your aesthetic norms.
The keystone model also incorporates a dehumidifier with a faculty to do 1.3pints/hour. Yet, the drainage crunch element still missing in this AC unit.
The built-in drainage hole is hard to locate, and in most rainy and humid conditions, it needs continuous drainage.
Besides, this model covers a 24-hr timer with auto-restart settings. The AC unit memorizes all your cooling and temperature settings and restarts with the same customization in case of any trip or electricity outage.
Although this unit won’t create a disturbance with its reasonable noise (62dB), still, there is a sleep mode feature. The temperature rises 1c after every 30 minutes in this mode, and the noise level also gets fine-tuned for better sleep experience.
Well, the system is submissive to provide eminent cooling performance for 140 to 150 sqft space. Don’t expect that your room will turn into an igloo, but it does an exemplary cooling job with its 3-speed fan speed (Hi/Lo/Mi).
The ERR rate is about 11.2, that puts around 31$ average extra cost to your yearly electricity budget.
The filtration section has a spice of “Check Filters” function that reminds you to wipe the filters after every 250 Hours of service.
Along with R-410A refrigeration, the anti-bacterial washable filter ensures the best ECO friendliness.
4. LG LW6017R (Best 6000 BTU Window Air Conditioner)
Are you a brand conscious in your home appliance choice? So this time LG LW6017R model has made entry to our findings. This 6000 BTU is one of the most atmospheric machines in this league run.
With 39.6lbs of weight, this model covers a dimension of 14.4 X 17.3 X 11.1 inches. These matrices allow this machine to get compatible with windows 21 to 35 inches.
The design is simple, straightforward, and not wholly covered with buttons panel. A small section of soft-touch buttons and a digital LED display to raise its artistic value.
However, the chassis seems not “SO” sturdy as it has been molded with a thin metal sheet.
The LG model comes with a dual dehumidifier that can extract about 1.8pints/hour of water. The liquid condensate waste oozes through a drain pipe that comes with the package.
Along with such capability, this LG model allows the outside fresh air to come into your room. Yet, this feature seldom becomes anxiety as there is no other way to turn this option off.
The Good News is, this LG LW6017R model has a high prominence for effective cooling and noise level. This WAC unit can chill around 200 to 250sqft of space comfortably with a maximum 55 dB noise level.
The fan has three settings, and on the lowest fan speed, it lingers more quite. Nonetheless, many users claim the fan is of poor quality.
In many cases, this LG unit becomes faulty, and the most reason for this faultiness is that silly fan that malfunctions after some seasons.
All cynical popping asides, this LG 6000 window air conditioner unit goes cautiously on your electricity budget by putting an average 40$ to your yearly electricity bill.
This bill efficiency comes due to an elegant working thermostat and energy saver mode. Having an energy saver mode on board recognizes the fan to turns on after every 3 minutes.
The fan senses the room temperature and, in the case and need of cooling, employs the compressor to let start the work.
Thus, your compressor always works when it’s a dire need to do. Along with this, this AC unit maintains an 11.5 ERR score (totally forgot to mention).
5. Emerson EARC6RE1 Quiet Kool 6000 BTU Window AC
Emerson is one of the most trusted brands in the Air conditioning world. The Emerson model EARC6RE1 is another pick to our listing. This 6000 BTU unit is somewhat insignificantly bigger than above all models with a dimension of 18.6 X 15.6 X 13.3 inches.
Though these dimensions make it compatible for windows ranging from 23 inches to 36 inches. The weightage is amply balanced with its BTU league and size.
Now let’s jump into the marketing ploy of this machine. To be very transparent and honest, the word “Quiet Kool” has created some troubles to this machine reputation.
With such name, the hopes and expectations from this machine, have gone to some extra heights. Although this machine is pretty quiet, having a noise level range from 51 to 55 dB, yet it lacks that crispy moment when we consider “Quiet Kool.”
Some People understand this situation entirely while some get destroyed HOPES. Shortly, the machine is pretty quiet, yet the specific name is the actual culprit.
Now again, to be very exact on the design perspective, you’ll find both green and red flags flashing around.
The front cooling grill vent is smartly designed, which enables you to enjoy 8-way airflow for maximum cooling outreach. The substantial coverage for this machine is about 250sqft, which it handles like a child’s play.
Moreover, on the front, there is a slightly large LED display panel. This HCI assists you in the night to quickly figure out the correct temperature display with your half-opened sleepy eyes.
While coming at dehumidification and drainage system, it gathers the condensate water but finds it perverse to drain with the company manufactured drainage hole.
You have to make your unit tilt a bit to let the water flows without a heck. It’s worth to mention here; the dehumidifier can filter somewhat around 1.8pints/hour.
Impressively, this Emerson EARC6RE1 model is an ENERGY STAR rated model and possess a 12.2 ERR score.
Furthermore, there is a unique ECO mode in the machine that genuinely knows how to save your bucks on electricity bills. So, a nail-biting situation on your electricity utility bill comes to an end with this energy-efficient machine.
6. FRIGIDAIRE FFRE0833U1 (Best 8000 BTU Window AC)
So coming out from the two small BTU categories, let’s begin into medium-range air conditioner BTU category.
This Frigidaire 8000 model is a styled model designed for low to medium range spaces. This FFRE0833U1 8000 BTU air conditioner is extra wide, but at the height section, it is similar to an average size machine.
It carries 57 pounds of weight with the dimensions of 15.7 X 20.9 X 12.8 inches. The opening width of your windows must be between 24 to 36 inches to hold this air conditioning unit rightly.
As an 8K BTU unit, it’s a little bit loud with a max 59 dB of the noise level. This noise level is not disruptive to listening sensitivity, but when you look at some of the same league boys, there is a prospect of improvement in this subject.
But still, it won’t shatter your hopes with its execution.
This unit bags some acute appreciation of the quick cooling performance. With a max 215 Cfm and 8-way airflow, it is over-edged to many of its competitors like Friedrich CP08G10B and LG LW8017ERSM in nippy cooling operation.
Furthermore, the thermostat accuracy is worth considering in this model. The thermostat function works very precisely, even in most humid conditions.
You don’t have to retune the temperature at midnight as the thermostat agent entirely deals with the temperature scenarios.
The coverage range has been advertised to 350sqft for this specific air conditioner unit. However, map your expectation a little low to 300 to 325sqft for better results.
Being an 8000 BTU unit, unquestionably, it carries a bigger compressor that can consume much energy. Thanks to its power-saving Low Power Startup technology, this Frigidaire air conditioner maintains a 12.1 ERR score and adds around 60$ yearly billing cost.
Competing with its rivals that adds 100 bucks to your electricity bills, this model bags the competition with great pride.
The dehumidifier performs a 1.7pints/hour job. Along with this, an anti-bacterial mesh filter also saves you from environmental impurities, allergies, and odors.
With over 200 hours of service, the filter-screen demands cleaning with either air blower or through water rinsing.
7. Koldfront WTC8001W (8000 BTU Air Conditioner)
So are you looking for more alternatives in 8000 BTU category? This Koldfront through the wall AC unit is another powerful cooling machine.
Contrary to the previous 8000 BTU air conditioner model, this one is a significant large machine. With a size of 14.5 X 24.2 20.3 inches, it also incorporates a bit heavy chassis with 65lbs of weight. With said that you should have strong arms and wrists to mount this machine to through the wall.
As far as the cooling job concerns, the Koldfront WTC8001W model is supremely suitable for 350sqft space. This machine reduces the temperature quite efficiently.
Along with 4-modes of working, let enjoy fan only, dehumidifier, compressor and heater modes in a single device.
Yes! You heard it right, and to your curiosity, a small heater unit has also added in this machine. While this Koldfront 8000 BTU model shines in summers, it also adds coziness to your moments in winter.
However, the balance between the power of the AC unit and the Heater unit is not symmetrical.
As a matter of fact, the heater unit is a supplementary heat source, which means it’s there just to fill the canyon of Heater.
The heater mode, in spite of 350sqft cooling mode, has minimal coverage of 100sqft. Indeed, if you are looking to pick this machine for a specific purpose of the heating job for medium size rooms, it isn’t the best-looking choice.
The ERR rating score is also not upto the mark, featuring an average of 9.6 ERR. Fortunately, you can still save many of your bucks on electricity billing.
Want to know how?
The energy saver mode is quite valuable in this machine. From 2 to 10 minutes interval, manage your fan and temperature setting. So the fan will only engage the compressor after this interval settings and temperature threshold.
The dehumidifier has a helpful capacity of 45pints/day. When the extremely humid conditions knock your door, let smash that moisture with dehumidification mode.
Likewise, the other good character AC units, this Koldfront WAC, has the blessings of 4-way airflow, three fan speed, 24hr timer, sleep mode, and such other goodies.
8. TOSOT (Best 10000 BTU Air Conditioner)
Would you love to mount an old grannie era styled air conditioning unit into your luxury and decorative space? Admittedly, it isn’t making any sense to destroy the whole scenario with only one old fashioned AC unit.
TOSOT has managed the things according to your mood, and with this stylish and best-looking air conditioner, you can fix that one UGLY corner of your room.
This stylish machine is faintly big and broad that truly makes a sense as it’s a 10000 BTU unit with a bigger compressor and fan size.
The dimensions of this machine are 27.6 X 22.9 X17.6 inches so that, this machine will be adjusted in windows ranging from 25” to 37”. As the size has increased, the weight has also seen an increase – featuring 74.3 Lbs.
This machine is not only glamorous in looks but also renders a reliable cooling performance for 450 sqft area. The 2-way full vertical motion grills allow you to feels the cold air (with MAX 244 CFM airflow) while sitting on a fair distance.
The Fan-only and dehumidifier (62.4pints/day) with cooling mode made this machine a 3-in-1 package. Additionally, a thermostat with the name of the “Smart Temperature Control” feature efficiently maintains your room cooling to an optimum level.
The noise level, to some extent, is high, and some people find it loud on their ears. However, it is outstanding if you don’t possess high noise sensitivity, you can comfortably sleep with sleep-mode turned on.
As this is 10000 BTU unit, the decibel ratings range from 65 to 69 dB that are actually not noisy parameters.
Also, as a bigger unit, TOSOT 10200 BTU unit has made it to 12.1 ERR scores. Stylish looks, sleek design, strong cooling performance, and now this efficient energy consumption, surely it is not less than a treat for your hard-earned cash.
The remote controller isn’t an ordinary one. Well, adding more smartness to this air conditioner, there is an “iFeel” feature on your remote.
Keep your remote near to you, and it sends signals to your AC unit about how long it has to throw cooling. For every 10 minutes, the remote pingbacks the AC unit sensor with your sitting distance. Surely, you will be going to love this experience.
For a better and continuous cooling experience, a Clean Filter Alarm warns you about the cleaning of the filter. The system gives you beeping or warning about the debris clogging to the filters screens.
9. Friedrich Chill Series CP10G10B WAC (10000 BTU)
Friedrich is known for its well-built and robust production lineup. This Chill series is also known for its superior cooling capacity, versatility, and brand name.
For this 10000 BTU unit, you can experience ultra-quiet operation, continuous air sweep louvers, and long cooling range.
But let’s watch for size, dimensions, and installation first.
This WAC model doesn’t look bulky but carries a little heavier weight – honestly speaking around 81lbs. With dimension around 22.2 X 23.6 X 15 inches and such a heavier weight, the installation needs two-person to place it in your wall correctly.
The window size ranges from 27 to 39 inches, so place this AC unit according to your window measurement for the better cooling experience.
The Friedrich chill CP10G10b is designed to produce you the most extended range with the most energetic cooling performance. You can place it in your master bedroom with the area of 450sqft and can sit back, relax, and enjoy your moments.
This series also comes from 5200 to 230000 BTU model option so you can enjoy this particular model for areas of your choice
The company claims “Ultra-Quiet” Operation, but the ULTRA word doesn’t fit in all cases. No doubt, it’s one of the quietest window air conditioners, but expecting it to be ULTRA quiet would be a false hope.
In addition to this, continuous auto air sweep louvers help to throw a whooping 300CFM of airflow in all directions of the room. So no matter in which corner you sit around, you will experience the same cooling performance.
The built quality is superb, and with its super white color, it contrasts and matches well with your room color scheme. But, shipping and packaging seem a little heck.
In many cases, people have fretted about the damage done in the shipping process and have also claimed poor packaging. Although there are no reports of notable damage, dents or breakage yet this area needs some serious attention.
With the calmest cooling operation, this unit also doesn’t become cumbersome on your electricity meter. With just 70$ yearly cost and 12.0 ERR score, Friedrich chill 10000 BTU unit is an ENERGY STAR certified machine.
10. Kenmore Smart 04277127 (Best 12000 BTU AC)
Do you really a technology fanatic? Kenmore has it all with a fresh white n grey colored design and special cooling performance.
This Kenmore smart 12000 WAC unit is a big guy for multiple rooms with the smartness of a mobile app and Wi-Fi connectivity.
This model is somewhat medium size machine with 81 pounds of weight. The installation is not a pretty issue, but surely you will have to lend strong hands and wrist to carry such weight.
This Kenmore model can be settled into windows ranging from 27 to 39 inches, as it has dimensions about 22.2 X 23.6 X 15 inches.
This room air conditioner has a big responsibility to cool down a 550sqft space, which it does quite efficiently. The 4-way directional max 265 airflow cools down the area (even above 500sqft) with great care.
With the smartness of mobile app control, you can manage temperature settings, fan settings, and other functions through your phone. This Kenmore 04277127 model is compatible with the Kenmore AC smart app and with Amazon Alexa.
However, setting up your Air conditioner with Alexa App is a bit difficult. Additionally, in some cases, the connection between the Alexa app and Air conditioner halts.
Anyway, you can still manage your AC with your Remote controller.
Kenmore has designed this to save your electricity bills with its 12.0 ERR score. You just have to bear around an extra 70$ yearly to your wallet. So your investment in this machine always remains secure.
By the way, the customer support is of the most crucial element you can enjoy while going with Kenmore.
On the noise level side, it maintains a max 54 dB of sound. So, it’s a relief to enjoy a noiseless cooling performance in blistering summers.
The startup seems louder, but after settling down the temperature, it relaxes down on sound.
Who makes the smallest air conditioner?
LG, Frigidaire, Haier, Whirlpool, etc. are the most famous brands, but the market is full of good and bad models; you also have to look above these models.
Can you leave a window air conditioner on 24/7?
That’s not a sensible idea to opt, as running your Air conditioner for such duration will put strains to it and will drain tons of energy.
Do window AC units use a lot of electricity?
In contrary to central or split units, the windows air conditioners don’t go hard on your electricity bills. They use as much as 50 to 60 percent of less power as compared to central air conditioning.
Should a window air conditioner be tilted?
No, it is not recommended. The company already designs it in that way, so the condensate water drains quickly.
Anyway, the TILT scenario is not a permanent solution if your window air conditioner is not properly draining the water. You should consult the customer care for such issues.
How long does it take a window AC to cool a room?
It totally depends on specific model-to-model, every unit has its own capabilities, and the temperature conditions also vary in every scenario
Is it OK to spray water on your air conditioner?
Yes, but with great care. Spraying your window air conditioner in hot weather improves your AC performance and reduces billing (don’t expect a significant change)
The Bottom Line
These were some of the most known and elegant findings in the category for the best smallest windows air conditioners.
Now, what WAC is exactly the best for you? Let summarize this detail buying guide with a perfect pick. Below is the category-wise listing of AC, which can befall into your purpose.
It necessary to mention, we are slightly prioritizing the performance matrix on size of AC so you can find the best Window Air conditioner for your room
In 5000 BTU Category: Keystone Wall Mounted Air conditioner
In 6000 BTU Category: Emerson Quiet Kool EARC6RE1
In 8000 BTU Category: KoldFront WTC8001W
In 10000 BTU Category: TOSOT 10000 BTU WAC
In 12000 BTU Category: We have purposely mentioned the best fit for this category – Kenmore Smart 04277127 Room Air Conditioner
So here is the categorically listing of windows AC units, which should get fit awesomely in your objective. The remaining items are not bad or faulty; they are also best in some other aspects. Let’s pick a noble machine for your home.