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8 Best Rated Smallest Window Air Conditioners You Can Buy

M ost window AC units do a pretty good job when it comes to cooling the room, but they tend to be bulky and ugly. Trying to hide them from view may not be the best idea, especially as there are chances to restrict the airflow. And you surely don’t want that to happen. The best option is to buy a small AC that fits your window and doesn’t ruin the room design.

Some people are afraid that a small AC isn’t strong enough to effectively cool the room, and we totally agree. Anyway, it is not the case with the units selected here as they are small yet deliver great performance. For more info and ranking, keep reading and discover why the models we’ve selected are the best options at the moment.

The models below are not designed for large areas but rather for offices or small bedrooms. For larger rooms, opt for a through-the-wall air conditioner that can be used even without the presence of a window.

Top 9 Smallest Window Air Conditioners Compared

Photo Product Name Window Compatibility Cooling Power Area Coverage Dehumidification Rate Cool Speeds/Fan Speeds Warranty Price

Best Overall

1. Koldfront WAC10002WCO

23 to 36” wide and 15.5” high 10,000 BTUs 450 sq. ft. N/A 3/3 2-year on parts and labor Check Price at Amazon

Editor’s Choice

2. Haier ESAQ406T

26 to 39” wide and 13.3” high 6,000 BTUs 250 sq. ft. N/A 4/4 1-year on parts and labor/5-year on sealed system

Best for Small Bedroom

3. Frigidaire FFRE063WAE

23 to 36” wide and 14” high 6,000 BTUs 250 sq. ft. 1.3 pints/hour 3/3 1-year limited / 5-year sealed system Check Price at Amazon

4. Friedrich CCF05A10A

20 1/8 to 36” wide and 20 ½” high 5,200 BTUs 150 sq. ft. 1 pint/hour 3/3 5-year on parts and labor Check Price at Amazon

Best for the Kitchen

5. Friedrich CP06G10B

18 3/8”-28” wide and 14” high 6,000 BTUs 250 sq. ft 1.8 pints/hour 3/3 1-year on parts and labor Check Price at Amazon

6. LG LW6017R

21 to 35” wide and 12” high 6,000 BTUs 260 sq. ft. 1.8 pints/hour 3/3 1-year on parts and labor Check Price at Amazon

Best for the Money

7. hOmeLabs AC-188

23 to 36” wide and 13” high 5,000 BTUs 150 sq. ft. N/A 2/2 30-day money back guarantee/2-year (+6 months with product registration) Check Price at Amazon

Best for the Money

8. Haier HWR06XCR

24.5 to 36” wide and 13.37” high 6,000 BTUs 250 sq. ft 1.1 pints/hour 3/3 1-year on parts and labor Check Price at Amazon

Best for the Money

9. Midea MWA06CR71-E

23 to 36” wide and 14” high 6,000 BTUs 250 sq. ft 1.27 pints/hour 3/3 1-year on parts and labor Check Price at Amazon

1. Koldfront WAC10002WCO

Check Price at Amazon


Specifications:

  • Window Minimum Height: 15.5”
  • Window Width Range: 23”-36”
  • Cooling Power: 10,000 BTUs
  • Capacity: 450 sq. ft.
  • Wattage: 880W
  • Dehumidification:
  • Noise Level: 57-59.5 dB
  • Energy Efficiency Ratio: 12
  • Filter Type: Air Mesh
  • Fan Speeds: 3
  • Air Direction Control: 4-Way
  • Window Mounting Kit Included:
  • Warranty: 2 years on parts and labor


If you are looking to provide cooling for a large area, this model by Koldfront is the best option. It is bulkier than any other model, but it can effectively cool up spaces up to 450 sq. ft. The cooling rating reaches 10,000 BTU, so it’s considerably stronger than its competitors that only bring 6,000 BTU to the table. It manages to lower room temperature to 62 Fahrenheit but it can also increase it to 82 Fahrenheit so it can be used all year round.

Installation

As mentioned, it requires installation in a frame, so you must check its dimensions and the requirements of the mounting frame. The housing measures 14.6” high, 19” wide, and 21.5” deep and fits within a minimum height of 15.5” and a width between 23” and 36”.

It is packed with many nice features that allow you to adapt it to your preferences. Among others, it has a built-in timer, an energy saver mode, as well as multiple fan velocities – low, medium, and high. Here are some other nice traits:

  • Sleep mode for reduced energy costs: when this mode is selected, the temperature is constantly adjusted by 2 degrees Fahrenheit. This happens for 6 hours, and then it returns to the value you’ve selected.
  • Alerts you when you should replace the filter: the LED light illuminates to remind you to clean the filter. It is set to alert you after 250 hours of use.
  • You can point the air stream in the direction you want: you can manually adjust the louvers to distribute the air evenly. With the help of the center handle, you can guide them to any of the four directions. Four velocities are available, along with 4 pre-set modes.

  • Long-range remote: in case you want to control it from a distance, you can use the remote that works from a 16-feet distance.
Energy Use

The yearly operating costs will double with this unit, but this is normal since it has twice the power of the regular small models. The estimated annual cost for 8 hours per day for 3 months is $81. This is a decent cost if we compare it to other similar models that can cost you up to $127 per year. It is Energy STAR approved, so you can definitely trust it to lower your bills. Besides, the Energy-Saving mode turns on the fan for two minutes every 10 minutes whenever the temperature exceeds the level you set, at which time the compressor will resume cooling.

With a machine as important and expensive, a warranty is an essential aspect to keep your eyes on. The period provided for this model lasts for 2 years and covers the costs of replacement parts and labor.

In case an upright installation is more appropriate for you, check out vertical window ACs that provide more cooling power and can cover larger areas than their horizontal counterparts.

PROS

  • It is intended to use as little energy as possible
  • It also dehumidifies and cleans the indoor air
  • The chilling power is increased
  • The warranty is generous
  • It notifies when the filter needs cleaning
  • The air goes in four directions

CONS

  • It’s very loud even on the lowest setting
  • Some users reported problems with the remote


VERDICT

When the blaze hits, you wish you had this powerful unit installed in your home, so you will always have the heat under control. With a generous temp range and a high BTU rating, it’s among the most powerful offered in the industry. The manufacturer also put attention to the consumption and fitted it with useful settings that lower the operating costs.



2. Haier ESAQ406T



Specifications:

  • Window Minimum Height: 13.3”
  • Window Width Range: 26”-39”
  • Cooling Power: 6,000 BTUs
  • Capacity: 250 sq. ft.
  • Wattage: 540W
  • Dehumidification:
  • Noise Level: 44 dB
  • Energy Efficiency Ratio: 12.2
  • Filter Type: Air Mesh
  • Fan Speeds: 4
  • Air Direction Control: 2-Way
  • Window Mounting Kit Included:
  • Warranty: 1 year on parts and labor/ 5 years on the sealed system


Smaller spaces don’t require such extended power, so you might be ok with what this model has to offer. Slightly smaller in size, it can deal with the heat in rooms measuring up to 250 sq. ft. and it can also regulate humidity by extracting around 1.5 pints every hour.

  • An innovative cross-flow fan: it ensures a higher performance without creating a loud noise. The airflow is smooth, reaching 200 CFM, while the cooling power reaches 6,000 BTU. The current can be sent to any of the four directions, as the top angled air discharge can be moved.
  • You can use the functional remote to access its settings from a distance and you will find it very simple to use as all the selections will be shown on the generous display.

  • It’s ultra-quiet at 44 dB: you can have it running even while you sleep, especially since it offers a special Sleep mode that ensures the ideal temperature will be achieved without disturbing your sleep.
  • The timer setting will come in handy whenever you will need to set a schedule, making it easier to arrive home to the ideal ambiance.

  • The fan velocity can be set to one of the 4 provided levels: ensures you will find the one that feels the most comfortable.

It also offers pre-set modes that have it running within certain parameters, so all you have to do is pick either the Sleep, Energy-Saving, Dehumidifier, or Cool mode. To ensure a clean ambiance at all times, a filter was also added, one that you can wash so you won’t have to permanently buy new filters. Every time it will require cleaning, a light will appear on the control panel, making it easier for you to ensure proper upkeep.

Considering the asking price, generous protection is welcome, and the manufacturer is aware of this so they cover the AC for 1 year after the purchase. The essential and most expensive part, the sealed element, is protected for 5 years, contributing to a stress-free utilization of this product.

Travel enthusiasts who own an RV surely know how hot these means of transportation can be during long, hot summer days. Luckily, we made a selection of the most effective air conditioners for RV that can be effortlessly installed there.

PROS

  • It is an improvement from the other much noisier models
  • The sealed components are covered by an extended warranty
  • The airflow can be sent in 4 directions
  • Installation is very simple
  • It also dehumidifies the air as it cools it down

CONS

  • The top vents are prone to collecting debris
  • The filter is hard to take out


VERDICT

Clients praise the whisper-quiet functioning that makes it ideal even for bedrooms. Having it mounted is not a hard task, so you can easily do it yourself, and you will like how intuitive it turns out to be. Maintenance might be a bit complicated as the filter comes out with difficulty.



3. Frigidaire FFRE063WAE

Check Price at Amazon


Specifications:

  • Window Minimum Height: 14”
  • Window Width Range: 23”-36”
  • Cooling Power: 6,000 BTUs
  • Capacity: 250 sq. ft.
  • Wattage: 500 W
  • Dehumidification: 1.3 pints/hour
  • Noise Level: 51-55 dB
  • Energy Efficiency Ratio: 12.1
  • Filter Type: Washable
  • Fan Speeds: 3
  • Air Direction Control: Swing
  • Window Mounting Kit Included:
  • Warranty: 1 year limited/ 5 years on the sealed system


Designed by a trustworthy brand, this unit stands out through its quiet run, a feature that makes it ideal for bedrooms. It offers both a fan and a cooling mode, each of them with three speeds, which will reach different sound levels. Thus, on the lowest setting, the maximum number of decibels will be 51, which is lower than the average, on medium speed, it will produce 53 decibels, while on the highest setting, where most units tend to get fairly loud, this model will stay somewhere under 55 decibels.

While the sound level is significant, the good news is that it doesn’t affect the unit’s performance. Thus, the strong motor will deliver up to 6,000 BTUs, enough to cover a space of 250 sq. ft.

Other excellent features are:

  • Strong airflow: with a peak of 169 CFM, attained at the highest speed, 145 CFM on medium speed, and 132 CFM on the lowest speed, it can be considered fast, as long as it is used in the recommended space.
  • Built-in timer: pick the time for it to start and turn off in 30-minute increments.
  • Energy-saving operation: it has been Energy-Star verified and has a merged energy-efficiency ratio of 12.1, being more effective than most conventional units.
  • Dehumidification: this function allows it to draw around 1.3 pints of moistness per hour, so it can maintain a mold-free environment in small rooms that are exposed to humidity. It also cleans the air as it passes through the filter.

Besides all these, it comes with an excellent service contract that covers parts and labor for 1 year and the sealed system for 5 years.

Certain types of windows require a certain type of AC unit, as not all of them can fit regular models. If your house has slider windows, you might want to invest in a special casement window AC that can be easily mounted without having to alter the sills.

PROS

  • It provides an extended airflow
  • The protection policy is very user-friendly
  • It doubles as a dehumidifier
  • It can cover average-sized rooms without any problem

CONS

  • It works louder than expected
  • The remote lacks an integrated thermostat


VERDICT

As one of the most popular models preferred by clients, it stands out through the compact shape and cooling ability that makes it ideal for medium-sized rooms. It offers all the essential settings and is very comprehensive to maneuver, especially thanks to the long-range remote.



4. Friedrich CCF05A10A

Check Price at Amazon


Specifications:

  • Window Minimum Height: 20-1/2”
  • Window Width Range: 20 1/8”-36”
  • Cooling Power: 5,200 BTUs
  • Capacity: 150 sq. ft.
  • Wattage: 459W
  • Dehumidification: 1 pint/hour
  • Noise Level: N/A
  • Energy Efficiency Ratio: 12.1
  • Filter Type: Built-In Antibacterial Filter
  • Fan Speeds: 3
  • Air Direction Control: 8-Way
  • Window Mounting Kit Included:
  • Warranty: 5 years on parts and labor


If you are interested in a convenient model that offers full control over functions and settings through a remote, this one will surely meet your expectations. Designed to fit sills with a width between 20.1/8 and 36” and a height of 20.5”, it isn’t as compact as other models. However, it comes with a fitting kit and is fairly easy to mount. The housing is insulated and built of strong materials that make it resistant to weather.

It has a capability of 5,000 BTUs and a dehumidification rate of 1 pint per hour. Besides that, it offers a wide range of settings that make it both versatile and easy to operate. Here are some of the most significant:

  • Washable mesh filter: the air is drawn through this layer and, thus, cleaned of larger particles before being released back into the room. The filter has the property of protecting the internal elements of the unit as well.
  • 8-way airflow control: you can decide if the airflow should cover the entire room or just the spot where you are working or sleeping. If you pick the second option, you will be able to enjoy cooler air faster.
  • Timer: can go from 1 hour to 24 hours, so you can decide when the unit should take a break.
  • Auto-restart: this function keeps you covered in case of a power outage. Thus, the unit will restart on its own and resume the program.
  • App control: it has WiFi capabilities so you will be able to control it remotely through your phone.

With an energy-efficiency ratio of 12.1, running it will cost you around $42 per year, which is equitable. Besides that, you will be able to save a lot in case it gets broken due to manufacturing flaws or other mishaps that are covered by the warranty, as the assurance period extends to 5 years.

When installed in a bedroom or near a recreational area, the AC should remain as silent as possible so it won’t become bothersome. If you are picky when it comes to the operating sound made by your appliances, have a look at the quietest air conditioners offered in stores.

PROS

  • You can control it through the internet using a smart device
  • It is fully programmable as it provides a timer function
  • The washable filter purifies the air and protects the unit from debris
  • The airflow can be directed in 8 directions

CONS

  • The power rating is lower than its competitors
  • It doesn’t work too well if the external heat is high


VERDICT

Tech-savvy homeowners like the idea of being able to control their appliances while they are not home, so this model might be exactly what they were looking for. It can be accessed through an internet connection so it will make it possible for you to come home to a cool ambiance.



5. Friedrich CP06G10B

Check Price at Amazon


Specifications:

  • Window Minimum Height: 14”
  • Window Width Range: 18 3/8”-28”
  • Cooling Power: 6,000 BTUs
  • Capacity: 250 sq. ft.
  • Wattage: 530W
  • Dehumidification: 1.8 pints/hour
  • Noise Level: 60 dB
  • Energy Efficiency Ratio: 12.2
  • Filter Type: Antimicrobial Mesh
  • Fan Speeds: 3
  • Air Direction Control: 4-Way
  • Window Mounting Kit Included:
  • Warranty: 1 year on parts and labor


Our next option is this model made by Friedrich, suitable for slightly larger rooms – up to 250 sq. ft. for which it engages 6,000 BTU.

It comes with some nice traits that make it versatile. It restarts automatically in case of a power shortage, remembering the preferred settings. Additionally, it has side curtains that can be extended to reduce the exterior light and noise. Another nice feature is the possibility to run the power cord both right or left out the side of the cabinet.

  • Uses little electricity: the unit is Energy STAR qualified, so it is an energy-efficient model that will help you save more money and protect the surroundings. According to the estimations, using it 8 hours per day for 3 months will cost you $44.
  • Can be set to power on and off automatically: among the top features it offers is the 24-hour timer. You can program it now, and it will turn on or off at a particular hour.
  • Uniform air distribution with the help of the air sweep louvers: once turned on, it automatically oscillates the louvers from left to right to uniformly distribute the air. You can also move them up and down but only manually.

PROS

  • It operates at a low energy usage
  • The timer lets you select a working schedule
  • It retakes the settings if the power runs out
  • It is very intuitive in installation and maneuvering

CONS

  • The louvers only move left and right with any pre-set program
  • Some users considered it too noisy


VERDICT

It provides great results in cooling areas that don’t exceed 250 sq. ft., as most of the models we have revised. You will enjoy the convenience of pre-set functioning modes and an intuitive panel that simplifies its maneuvering. You might find it noisier than you thought it would be, even on the lowest setting.



6. LG LW6017R

Check Price at Amazon


Specifications:

  • Window Minimum Height: 12”
  • Window Width Range: 21”-35”
  • Cooling Power: 6,000 BTUs
  • Capacity: 260 sq. ft.
  • Wattage: 520W
  • Dehumidification: 1.8 pints/hour
  • Noise Level: 52-56 dB
  • Energy Efficiency Ratio: 11.3
  • Filter Type: Air Mesh
  • Fan Speeds: 3
  • Air Direction Control: 2-Way
  • Window Mounting Kit Included:
  • Warranty: 1 year on parts and labor


Ideal for small windows, this unit is also very quiet. The noise indoor level is 52 dB, and the outside level is 56 dB. It can successfully cool a room of 260 sq. ft., and it supplies a dry airflow of 134 CFM. It has a cooling capacity of 6,000 BTUs. The unit is 17.31 inches wide, 11.125 inches tall, and 14.375 inches long, and it weighs 39.6 lbs.

With multiple built-in functions, it is one of the best you can get. It has a built-in thermostat that allows you to set the temperature and select among 3 cooling modes. You can also opt for the Fan Only mode and choose among 3 speeds. Additionally, you can alter the air direction from left to right.

  • Energy saver mode: to help you save energy, the fan stops on its own when the compressor stops. Then, the fan turns on every 3 minutes to check the temperature. If the temperature is higher than desired, the fan will instantly start to cool the room. The inside temperature can be set between 60 and 86F.
  • Can be used as a dehumidifier: when set in dry mode, it is capable of collecting the humidity from the air. It can collect up to 1.8 pints of water.
  • Control the unit while sitting on the couch: the included remote control allows you to pick the preferred temperature, speed, mode, and time.

PROS

  • It restarts from where it was left in case of a power shortage
  • The dehumidifying ability is impressive
  • The temperature range is extended so it can be used in the summer and winter alike
  • The mesh filter can be washed and reused

CONS

  • It only has 3 velocity settings
  • Some people find it too loud to sleep while it’s turned on


VERDICT

The popularity of the brand can be seen in this product that has plenty of positive reviews from customers. It’s effective in cooling mid-size spaces and it can be used in any season. The dehumidifying feature is impressive, as it manages to considerably reduce the moistness in the air.



7. hOmeLabs AC-188

Check Price at Amazon


Specifications:

  • Window Minimum Height: 13”
  • Window Width Range: 23”-36”
  • Cooling Power: 5,000 BTUs
  • Capacity: 150 sq. ft.
  • Wattage: 460W
  • Dehumidification:
  • Noise Level: 60 dB
  • Energy Efficiency Ratio: 11.1
  • Filter Type: Antibacterial Mesh
  • Fan Speeds: 2
  • Air Direction Control: 2-Way
  • Window Mounting Kit Included:
  • Warranty: 30-day money back guarantee/2-year (+6 months with product registration)


In case you don’t enjoy a big budget but still want to find a lasting solution to deal with the hot days, here is your go-to option. It is compact and lightweight, and it includes a mounting kit. It fits windows measuring 13” high and between 23” and 36” wide, so the standard frame should accommodate it properly.

This model is very simple in design and operating, so don’t expect it to blow your mind. It lacks a control panel with touch buttons or displays and offers in return a simplistic panel with two dials, one for selecting the temperature and one for the fan mode. It is fit for rooms up to 150 sq. ft., packing a cooling capacity of 5,000 BTUs. It has 7 temp settings to choose from and modifiable High or Low fan speeds that help it lower the ambient temperature in less than 15 minutes after turning it on. Once the desired temperature is achieved, it will stop and start automatically to maintain that level.

The top louvers can be moved to the right and left, thus allowing you to redirect the airflow to the areas that most need it. While it manages to take out some of the moisture from the air, it’s not one of its strong points. What it does achieve is to retain some of the dust and debris from the air thanks to the outsized mesh filter at the back.

PROS

  • It is very straightforward as it doesn’t have complicated features
  • The air filter is very large so it captures a lot of debris
  • The temp dial has 7 levels to pick between
  • It uses little energy to operate

CONS

  • A remote is not included in the box
  • It can’t cover very large areas as it has a low BTU and CFM
  • Very limited in settings


VERDICT

Some people appreciate the simple design as they don’t like the hassle of touchscreens or push-button control panels. It does a good job lowering the temp on summer days but it’s not suitable for large rooms. Its biggest drawback is the lack of a remote that would make distance maneuvering a whole lot easier.



8. Haier HWR06XCR

Check Price at Amazon


Specifications:

  • Window Minimum Height: 13.375”
  • Window Width Range: 24.5”-36”
  • Cooling Power: 6,000 BTUs
  • Capacity: 250 sq. ft.
  • Wattage: 530W
  • Dehumidification: 1.1 pints/hour
  • Noise Level: 55 dB
  • Energy Efficiency Ratio: 11.2
  • Filter Type: Permanent Mesh
  • Fan Speeds: 3
  • Air Direction Control: 4-Way
  • Window Mounting Kit Included:
  • Warranty: 1 year on parts and labor


This model made by Haier has the same capacity as the Friedrich CP06G10B (6,000 BTUs) only that it is not Energy STAR certified, so running it will cost you a little bit more. An estimated cost for 8 hours of daily use for 3 months is $53. However, this is not very bad, because other similar units may cost you up to $72 per year.

For its capacity – it is fit for rooms up to 250 sq. ft. – it is compact and fairly lightweight. Besides, it comes with some nice features that make it worth the investment. It restarts automatically in case of a power failure and it has a built-in 24-hour timer that allows you to program it to power on and off at a certain hour.

It has multiple speeds that allow you to adjust the intensity of the cooling and fan. Also, the airflow can be directed in 4 ways – left and right, up and down.

  • Set it in the sleep mode to enjoy a cool night’s sleep: this function keeps you cool when sleeping. Once selected, the temperature will increase by 2 degrees Fahrenheit after the first 2 hours. Then, the AC will maintain this temperature for 6 hours.
  • Automatically adjusts the fan speed: in the auto cool mode, it automatically adjusts the speed of the fan.

One of the nicest features is the remote that has braille signs on it, making it easier for blind people to use it without any help. Also, the back is magnetic so it will stick to the unit, averting misplacing it somewhere around the house.

PROS

  • The airflow goes in 4 directions so it can cover every corner of the room
  • Magnetic remote with braille writings
  • Digital temperature adjustments to simplify maneuvering it
  • Comes with side panels to fit many window sizes

CONS

  • Works for rooms smaller than described
  • It isn’t very efficient if the outside temperature is too high


VERDICT

You can trust it to cool mid-size rooms but it might struggle a bit if the outside heat exceeds 90 degrees. However, the 4-way direction airflow is a great asset as it manages to cover the entire room without issues. The remote is a big plus as it is suitable for people with seeing difficulties and it also attaches magnetically to the housing of the unit.



9. Midea MWA06CR71-E

Check Price at Amazon


Specifications:

  • Window Minimum Height: 14”
  • Window Width Range: 23”-26”
  • Cooling Power: 6,000 BTUs
  • Capacity: 250 sq. ft.
  • Wattage: 700W
  • Dehumidification: 1.27 pints/hour
  • Noise Level: 51.9-55.5 dB
  • Energy Efficiency Ratio: 12.2
  • Filter Type: Reusable
  • Fan Speeds: 3
  • Air Direction Control: 4-Way
  • Window Mounting Kit Included:
  • Warranty: 1 year on parts and labor


Versatile and stylish, this AC is perfect for areas between 150 and 250 sq. ft., as it boasts a 6,000-BTU cooling power. You will simply love its functionality, as well as the included remote control that allows you to set it while relaxing on the sofa. It is fit for windows with a width between 23” and 36” and a height of 14 inches. It comes with all the accessories included for performing the installation and clear instructions.

The estimated energy cost per year is $48, so you can consider it an energy-efficient option. To help you reduce the electricity bills, it features an Eco mode. Therefore, once the set temperature is reached, it shuts off automatically. You can also set it to turn on or off with the built-in 24-hour timer. For cool nights, you can select the sleep mode that automatically regulates the temperature to feel more comfortable.

  • It cools, dehumidifies, and circulates the air in the room: you can choose one of the 3 functions available to feel as comfortable as possible. You don’t have to buy a separate dehumidifier as this AC is also able to remove water from the air with just a push of a button.
  • Automatically corrects the temperature based on the location of the remote control: the remote control doubles as a thermostat. The “Follow Me” mode enables the unit to regulate the temperature so you can enjoy the same comfort even if you’re not near the AC.

PROS

  • Low-consuming so you won’t have to worry about the bills
  • The remote includes a thermostat for more accurate temp settings
  • Also works as a dehumidifier
  • Includes side panels for stress-free mounting on any window

CONS

  • It’s not very efficient in cooling 250 sq. ft. rooms as stated
  • The dehumidifier feature is not very helpful


VERDICT

It’s good for small rooms up to 200 sq. ft. or less, so don’t expect it to make wonders in large areas. Mounting is very simple as it comes with all the required components, including side panels to adjust to the length of various windows. It is comprehensive and all in all does a good job for its cost.



Benefits and Drawbacks of AC Units


There is no such thing as a perfect product, as all have their goods and their bads. So, before making up your mind, find out which are the advantages as well as the possible disadvantages of each unit.

Koldfront WAC10002WCO

  • suitable for larger rooms, Energy STAR certified, lots of features
  • rather loud, less compact than the other units

Haier ESAQ406T

  • the cool air is sent to 4 directions instead of 2
  • it has top vents that tend to capture debris like leaves

Frigidaire FFRE063WAE

  • quiet, powerful, energy-efficient
  • the side panels have gaps that need to be solved with duct tape

Friedrich CCF05A10A

  • remote control, timer, auto restart, WiFi connectivity
  • a bit noisy, bright lights on the control panel cannot be dimmed

Friedrich CP06G10B

  • quiet, Energy STAR certified, easy to install
  • expensive, the front cover is a cheap plastic, flimsy installation support system

LG LW6017R

  • quiet, lightweight, many functions and modes
  • short warranty, poor instructions

hOmeLabs AC-188

  • lightweight, easy to install
  • doesn’t have a dehumidifying function, few features, warms up pretty fast, no drill holes so the water collects in the housing

Haier HWR06XCR

  • many features, the remote control has braille
  • short warranty, the magnet on the remote is too strong, not very quiet

Midea MWA06CR71-E

  • multiple modes, quiet operation, stylish design
  • the controls are not straightforward, you have to deactivate the Eco mode every time the unit starts on

Frequently Asked Questions



How many BTUs do I need?
Considering that an AC needs 20 BTUs per square foot of the room, you will need to measure the space that needs cooling, calculate the area, and multiply the sum by 20. Nonetheless, other factors may influence the final value. For example, if your room is exposed to the sun most of the day, you should increase the BTU by 10%, while if it is rather shady, you can decrease the value by 10%. If more than one person is living in the room, you should add 600 supplementary BTUs for each additional person. Moreover, if you are planning to mount it in the kitchen, make sure to add 4,000 extra BTUs to the number, as this is a humid and hot space.

Do windows ACs use a lot of electricity?
Units of this type are designed to cover a single room, so compared with an AC that covers the entire house, they are less power-consuming. They are a great pick if you are spending a lot of time in a single room and don’t want to pay extra on getting the entire house cooled down. Nonetheless, if you are planning on mounting a window unit in every room, you may end up paying more than on central cooling, especially if your rooms are large and need a lot of cooling.

Can you use a window AC without a window?
The answer is no. Although you may hear that some people made some adjustments and managed to connect it to a vent, this is not a safe method, and we don’t advise it. Alternatively, it is good to know that there are plenty of safe alternatives if you don’t have a window available. For example, you could buy a portable AC, which can be connected to a vent through a hose.

What happens if the AC unit is too small?
If the unit doesn’t have enough BTUs, it will struggle to reach the optimal temperature, and this means that it will run continuously. This will make the compressor and motor wear faster, leading to more frequent maintenance and repairs. On the other hand, there’s not a good idea to use a unit that is too big either, as it will cool the room too fast, leaving no time for the dehumidification process to take place.

Will rain damage a window AC?
These units are designed to stand outdoor conditions, so the chances of them getting damaged by rain (even heavy rain) are slim. Nonetheless, if you’ve dealt with a storm lately, you may want to inspect your unit for possible branches or debris that may have gotten stuck inside. Also, if you are dealing with a yard flood and your AC touches the water, you should get it checked once the waters retreat.

Do window AC units circulate air?
Yes, they do have a fan, which usually helps circulate the cooled air. But if you only want to use it to stir the air in the room for a while, without employing the cooling function, this is possible. Most models will offer a Fan setting.

Do window ACs clean the air?
They come with filters (most are mesh models and washable). While you shouldn’t expect an AC to have the purification power of a high-end air purifier that uses a HEPA filter, you can rely on it to filter larger particles and allergens, making the air cleaner and safer to breathe.

Do window ACs pull air from outside?
The process here doesn’t imply drawing air from outside to cool the room, as a fan would do, but evicting the hot air from the room outside. Thus, the air indoors gets in contact with the refrigerant in the AC and gets cooled, while the refrigerant absorbs all the heat. The heat from the refrigerant is released outside, making it cool again for the cycle to restart.

How long do window ACs last?
A series of factors can influence the unit’s lifespan like the environment where it is used or the number of hours per day it operates. Nonetheless, the average functioning time is 10 years, assuming that the unit isn’t exposed to high humidity or extensive use.

Do window AC units need maintenance?
They are basically easy to maintain, as all internal components are sealed. You will only need to replace the filter once a month to ensure that the air in your room stays clean and wipe the interior part of the unit once in a while.



Conclusion

Now that we have reached the end of our analysis, it’s time to conclude. As you have probably noticed, we have only selected products that can pass the test of time and which can deliver great airflow with minimum energy consumption and at low noise levels.

Nonetheless, when picking one for your home, you should consider other criteria as well, like, for example, the size of the area you wish to cool or the amount of money you are willing to spend. In this direction, revisiting some of our best models can help you make a better decision. Here’s what we recommend:

Best Overall: Koldfront WAC10002WCO

It is almost incredible that this small unit can cool a space of 450 sq. ft., but when you take a look at its cooling power, you realize that you might just found the best deal for your small apartment. It generates up to 10,000 BTUs with a peak sound level of 59.5 dB and will only add $81 to your power bill, assuming that you use it only during the summer months. Moreover, you can reduce the costs even more if you use the sleep mode, which will adjust the temperature by only 2 degrees for 6 hours.

Editor’s Choice: Haier ESAQ406T

Our favorite stands out through its excellent 6,000 BTUs cooling capacity and 12.2 efficiency ratio. This little AC can provide cool air for a room measuring up to 250 sq. ft. with a noise of 44 dB at low speed, a level that is often reached by purifiers, therefore you can rest assured that it won’t disturb your peace. Just like the previous model, it can be used as a dehumidifier as well. Plus, it comes with a remote, so you can easily control it from the coziness of your couch.

Best Smallest Window Air Conditioner for Kitchen: Friedrich CP06G10B

If the unit you are looking for is intended to be used in the kitchen, then we recommend this AC from Friedrich. Not only that it has a good 6,000-BTU cooling capacity, which will allow it to deal with the heat in a small kitchen, but it comes with a strong dehumidification function that will help you deal with steam and condensation.

Best Smallest Window Air Conditioner for the Money: hOmeLabs AC-188

This unit offers great quality at an excellent price and won’t raise your electricity bills too much, as it features an energy efficiency ratio of 11.1, a value that will materialize in no more than $41 per year, assuming that you use it only during the summer months for 8 hours per day. Besides that, it is very effective, as it can cool a 150 sq. ft. room in only 15 minutes. Not to mention that it comes with 7 temperature settings, so you will be able to customize it to your taste.

Best Smallest Window Air Conditioner for Small Bedroom: Frigidaire FFRE063WAE

It is created to stay quiet, even at the highest speed, with a peak of only 55 dB and a minimum of 51 dB. Besides, it has enough power to preserve a comfortable temperature day and night without having to overrun the motor. The airflow is excellent, and it also offers a dehumidification function that will keep mold out of your room.

Markus Mackay
Markus Mackay
Our resident expert in all things AC-related, Markus is a never-ending source of knowledge regarding how these systems work. What makes him so savvy in this field is his direct experience that he acquired while working in sales. The connections he made during that period also came in handy here as Markus knows a lot of experts in this field. With each article uploaded, he makes sure to gather the expertise of his more experienced ex-peers as well, making sure to provide readers with reliable reviews and articles.

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