8 Top Rated and Best Window Air Conditioners – (Quiet & Small Air Conditioners Included)

There is something about summer that awakens all the senses. It may be the smell of fresh cut grass or the taste of fresh-squeezed lemonade to remind you that summer is here. When it comes to the feel of the blistering heat, you need no reminder. Instead, you need to find the best way to beat the heat, and a window air conditioner can provide just the relief you need. Window air conditioners can provide the cooling you need for the space you need without breaking the bank. So where you do begin?

With an array of brands and models to choose from, it can be overwhelming to make the right decision. Some window air conditioners are better suited for small rooms with window access, while others can be moved from room to room on a whim. Some units include smart-home technology, while some units are equipped with a higher BTU output designed for cooling your entire house! Finding the right air conditioner to fit your needs does not have to be overwhelming. However, the selection process of the air conditioning unit needs to be carefully considered.

So before you go selecting the first window air conditioner you find, it is important to know your options. Window air conditioners have a range of designs to fit your space, your preference, and your budget. Narrow these down and you will be on your way to selecting the best window air conditioner to fit your needs.

Here are the 8 top rated window air conditioner reviews to consider when selecting your new window air conditioner with a concluding buying guide to help you know important preliminary information before you make your purchase to beat the heat this summer.

Window Air Conditioners Reviews

Window Air Conditioners Reviews
  • 4.5 Customer Rating
  • Koldfront WAC25001W
  • Size: 25,000 BTU
  • Room Size: 1,500 sq. ft.
  • Dimensions: 26.5 x 26.5 x 18.6 inches
  • Color: White
  • Weight: 131 pounds
  • Warranty: Manufacturers

Window Air Conditioners Reviews
  • 4 Customer Rating
  • Frigidaire FFRA1011R1
  • Size: 10,000 BTU
  • Room Size: 450 sq. ft.
  • Dimensions: 21.5 x 19 x 14.5 inches
  • Color: White
  • Weight: 60 pounds
  • Warranty: Manufacturers

Window Air Conditioners Reviews
  • 4 Customer Rating
  • hOmeLabs HME020003N
  • Size: 5000 BTU
  • Room Size: 150-sq. ft.
  • Dimensions: 16 x 15.4 x 12 inches
  • Color: White
  • Weight: 36.5 pounds
  • Warranty: Manufacturers

Window Air Conditioners Reviews
  • 4 Customer Rating
  • Friedrich CP08G10B
  • Size: 8000 BTU
  • Room Size: 350 sq. ft
  • Dimensions: 20.9 x 18.4 x 14 inches
  • Color: White
  • Weight: 64 pounds
  • Warranty: Manufacturers

Window Air Conditioners Reviews
  • 4 Customer Rating
  • Frigidaire FFRA0511R1E
  • Size: 5, 000 BTU
  • Room Size: 150 sq. ft.
  • Dimensions: 15 x 16 x 12 inches
  • Color: White
  • Weight: 41 pounds
  • Warranty: Manufacturers

Window Air Conditioners Reviews
  • 3.5 Customer Rating
  • LG LW6017R
  • Size: 6,000 BTU
  • Room Size: 260 sq. ft.
  • Dimensions: 14.4 x 17.3 x 11.1 inches
  • Color: White
  • Weight: 39.6 pounds
  • Warranty: Manufacturers

Koldfront 25,000 BTU Heat/Cool Window Air Conditioner

Best Window Air ConditionersDo you need a top rated window air conditioner that cools a large space? If your central air conditioning system has gone out in your 1,500 square foot house, or your 1,500 square foot upstairs/downstairs, this Koldfront 25,000 BTU Heat/Cool Window Air Conditioner 25,000 BTU air conditioning unit by Koldfront can cool a space up to 1,500 square feet. Equipped with a remote, you can control your window air conditioner from across the room!

Equipped with both an energy saver mode and a sleep mode, this window air conditioner saves energy in more ways than one. While in energy saver mode, the fan will cycle for two minutes every ten minutes. This activates the compressor to cool the room if the room temperature exceeds the set temperature. This window air conditioner also includes an energy efficient sleep mode. Sleep mode conserves energy by adjusting the temperature periodically for six hours, before returning to the original set temperature after six hours. The energy efficiency ratio of this large BTU output window air conditioner is 9.4. The higher BTU output, the more energy is consumed for sufficient cooling. However, this 9.4 energy efficiency ratio estimates the yearly energy cost to operate this window air conditioner is $259 per year.

Along with saving energy, this window air conditioner is equipped with a dehumidifier. This unit removes 137 pints of moisture per day! Remember to properly clean the drain system to extend the life of your window air conditioner. There is also an alert to notify you when the filter needs to be checked. Proper maintenance of the filter as well as frequently cleaning the drainage system will preserve and extend the longevity of your air conditioner.

Key Features:

● 25,000 BTU cooling output is ideal for large spaces, such as 1,500 square foot homes, downstairs/upstairs living areas, garages or workshops.
● Energy saving options, such as energy saver mode, sleep mode, and 24-hour programmable timer assists in less energy usage and more cost savings.
● Included remote control can control fan setting, mode, temperature, and air conditioner settings.
● Easy installation directions with minimal equipment required; two people recommended for installation due to the weight of the unit.
● Two year in-home warranty included from manufacturer.
● Affordable purchase price.
● Heat/cool options give you dual controls all year long.
● Energy efficiency ratio of 9.4.
● Estimated $259 per year in energy cost.

Read the Full Review: Koldfront 25,000 BTU Heat/Cool Window Air Conditioner

Frigidaire 10,000 BTU Window-Mounted Mini-Compact Air Conditioner

Best Window Air ConditionersWhen it comes to small window air conditioners, look no further than the Frigidaire 10,000 BTU window air conditioner. Ideal for spot-cooling small areas up to 450 square feet, this Frigidaire window air conditioner at 10,000 BTU is most favorable in living rooms, bedrooms, or a small garage or workspace.

Dimensions for this Frigidaire window air conditioner are 21.5 inches deep, 14.5 inches high, and 19 inches wide, and weighs approximately 60 pounds. This size and weight helps for easy installation. Additionally, the window requirements for this unit are 23 – 36 inches wide and a minimum of 15 ½ inches tall.

This small window air conditioner by Frigidaire includes a selection of desirable features. These features include three fan speeds, 8-direction air vents, quiet a-weighted decibel rating at 55.7, a dehumidifier to reduce 2.7 pints of water per hour, and an energy efficiency ratio of 10.9. With an energy efficiency ratio of 10.9, the estimated yearly energy cost for this window air conditioner is $83 per year.

For the simplicity and affordability, the Frigidaire 10,000 BTU Window-Mounted Mini-Compact Air Conditioner is one of the hardest window air conditioners at 10,000 BTU to beat. Users agree across the board that this simple window air conditioner provides exemplary cooling to the space they need.

Key Features:

● Smaller BTU at 10,000 ideal for small spaces around 450 square feet, such as living rooms, bedrooms, small garages or workspaces.
● Low decibel rating of 55.7 makes for one of the quietest window air conditioners available.
● Relatively light-weight at 60 pounds makes for easy one-man installation.
● Energy efficiency ratio of 10.9 helps assist in energy reduction and cost savings.
● Estimated $83 per year in energy cost.
● Affordable purchase price.
● Simple, basic controls.
● 8-direction air vents help distribute cool air evenly and adequately.
● Dehumidifier to reduce air moisture and cool space appropriately.

Read the Full Review: Frigidaire window air conditioner

Homelabs 5,000 BTU Window Mounted Air Conditioner

Best Window Air ConditionersSometimes smaller is better. If you are looking for the best small window air conditioner, then this 5,000 BTU window mounted air conditioner by Homelabs is what you are looking for. With cooling capabilities of up to 150 square feet, this Homelabs 5,000 BTU Window Mounted air conditioner is perfect for your small cooling needs.

Do you have a small attic room that the central air conditioner is inaccessible to? Or maybe you finished an in-law suite above your garage that needs cooling capabilities?

Regardless of you reason, this 5,000 BTU air conditioner is ideal for those rooms that need to be cooled. The manufacturer suggests tilting the air conditioner a slight 3 degrees to produce optimal cooling. This Homelabs window air conditioner comes with support brackets, leaf guards, window seal foam, filter, and drip-free installation guide to make installation quick and painless.

Exact size of this window air conditioning unit is 16 inches long, 12 inches high and 15.4 inches deep. Additionally, the window requirements are between 23 – 36 inches in width a minimum of 13 inches high with a lightweight size of 36.5 pounds. This window air conditioner features a standard three-prong plug in with a required 110 – 120 volt electrical outlet.

Featuring mechanical controls, you can choose between seven temperature settings, as well as low or high fan speeds. This gives the user basic, straightforward control for easy adjusting. This seven temperature setting guarantees that your room will be cooled in 15 minutes or less. With an energy efficiency ratio of 11.1, this window air conditioning unit costs an estimated $41 per year in energy usage.

Included with this window air conditioner is a reusable eco-filter. With this reusable eco-filter, you are able to extend the lifespan of your small window air conditioner by frequently cleaning. For best results, choose from one of these two recommended cleaning methods: warm water and dish soap or vacuum cleaned with vacuum hand attachment. If washing, allow the filter to air dry before reinstalling.

There is no denying that this small Homelabs 5,000 BTU Window Mounted Air Conditioner is recommended by users needing to cool their small spaces. With its lightweight size and included installation equipment, you will be able to install this air conditioner in no time, taking your indoor summer space from hot to not.

Key Features:

● Small BTU output of 5,000 makes for ideal cooling of 150-square foot areas, such as dorm rooms, bedrooms, attic rooms or garages.
● Affordable purchase price.
● Temperature settings make for quick cooling in 15 minutes or less.
● Washable and reusable eco-filter for frequent cleaning to extend the air conditioner’s longevity.
● Required equipment for installation is included, resulting in quick and painless installation.
● Lightweight size of 36.5 pounds.
● Basic manual controls make temperature and fan setting easy and straightforward.
● Energy efficiency ratio of 11.1.
● Estimated energy usage cost of $41 per year.
● Standard three-prong plug-in and 110 – 120 volt electrical outlet required.

Friedrich Air Conditioning Company 8,000 BTU Air Conditioner

Best Window Air ConditionersOne of the top rated air conditioners for the size, money, and energy efficiency ratio is the Friedrich 8,000 BTU Air Conditioner. The 8,000 BTU output is used for cooling a room up to 350 square feet.

Is your windowless garage or basement in need of air conditioning? With this air conditioning unit, you are not limited to only installing in a room with window accessibility. This air conditioner can also be installed in the wall, making this air conditioner a versatile and practical option for all small rooms either with or without windows. In addition, the power cord for this unit can be moved to the bottom-left or bottom-right of the unit, allowing for optimal placement and installation.

Dimensions for this air conditioner are 20.7 inches deep, 18.6 inches wide and 13.9 inches high. With a lightweight size of around 64 pounds, installation is quick and painless. The power cord of this air conditioner is a standard three-prong cord with a 110 – 120 volt electrical outlet plug in required.

This air conditioner is Energy Star certified with an energy efficiency ratio of 11.2. This energy efficiency ratio estimates a yearly cost of $62 to operate. For extra efficiency, this air conditioner features automatically oscillating louvers. These louvers oscillate from left and right during cooling. This small air conditioner is ultra quietly designed to reduce noise to a minimum.

Key Features:

● Small 8,000 BTU is ideal for cooling small rooms up to 350 square feet.
● Energy Star certified with an energy efficiency ratio of 11.2, resulting in energy reduction and cost savings.
● Approximately $62 per year to operate according to energy efficiency ratio.
● Wall installation optional giving you more options for placement of this window air conditioner.
● Ultra quiet design to reduce noise to a minimum. This makes bedroom placement an option for this small air conditioner.
● Power cord placement can be moved from either the bottom left or the bottom right.
● Power cord is three-prong and requires a 110 – 120 volt electrical outlet.

With its versatility and energy efficiency, this 8,000 BTU air conditioner by Friedrich is an affordable option to cool any windowed or windowless 350 square-foot room.

Frigidaire 5,000 BTU Window-Mounted Mini-Compact Air Conditioner

Best Window Air ConditionersWith the exact same look and feel of its 10,000 BTU sister-version, this 5,000 BTU window air conditioner is optimal for cooling a 150 square foot room. For the money, this air conditioner is hard to beat.

Do you simply need a little extra cooling in a small space? Do you need a window air conditioning unit that you can manually turn on and off while you are in its designated area, such as a bedroom, living room or garage? This Frigidaire 5,000 BTU Window-Mounted Mini-Compact Air Conditioner is optimal for quickly cooling a space of 150 square foot or less.

Featuring its straightforward design and manual turn dial controls, you can adjust the fan speeds and temperature. Fan speeds include low cool, high cool, low fan and high fan. The temperature range is 1 – 7, with one being the warmest and seven being the coldest. In addition, there is a full-width air direction vent with a rotary control for you to manage the air outflow direction. Even as a manually controlled air conditioner, the energy efficiency within its simple features allows it to effectively cool without overworking.

This window air conditioner fits window between 23 and 36 inches wide with a minimum height of 15 ½ inches. The unit is dimensions are 12 inches tall, 16 inches wide and 15 ¼ inches deep. With its compact size and weight of approximately 41 pounds, this unit includes a window mounting kit with side panels for quick and easy installation. With a 115 volt electrical plug-in required, location and placement of this 3-prong plug-in small window air conditioner are endless.

Additional features include dehumidification of 1.1 pints per hour and antibacterial mesh filter. To lengthen the lifespan of your window air conditioner, clean the drain system and filter frequently to prevent your unit from overworking. With an Energy Efficiency ratio (EER) of 11.1, this small window air conditioner has an approximate yearly cost of $41, making this air conditioning unit a practical and efficient choice for your small cooling needs.

If you are looking to cool your small 150 square foot area and digital or remote controls are not a requirement, this Frigidaire 5,000 BTU window air conditioner is what you need. With an affordable purchase price, the cost savings continue with its energy efficiency and yearly operating cost, making this small air condition the perfect choice for your small cooling needs.

Key Features:

● 5,000 BTU output for cooling rooms up to 150 square feet.
● Must be installed in a windowed room.
● Manual turn dial controls featuring two fan speeds, two cool speeds, and temperature range.
● Small size with window mounting kit included makes for quick and easy installation.
● Energy efficiency ratio of 11.1.
● Approximate yearly cost of $41.
● Standard 115 volt plug-in electrical outlet required.

LG Energy Star 6,000 BTU Window Air Conditioner

Best Window Air ConditionersIf energy efficiency, digital and remote control, and affordability are what you are looking for, then the LG Energy Star window air conditioner with an Energy Efficiency ratio of 11.5 is your perfect fit.

Featuring Energy Star technology, this 6,000 BTU window air conditioner makes for a quiet and affordable air conditioning unit for cooling an area up to 260 square feet. This size LG air conditioner makes a perfect fit for a dorm room, bedroom, or small living area.

As part of the Energy Star certification, this unit will restart in energy saving mode when the power is restored, should the power go out. When energy saver mode is enabled, the fan and compressor will stop running once the desired temperature is achieved. Every three minutes, the fan will turn back on to confirm the temperature of the room does not need cooling. If the room needs cooling, the compressor will turn on and cool as needed and return to energy saver mode.

This window air conditioner also features dehumidification of 1.8 pints of condensed water per hour. Other additional features include the three cooling speeds and three fan speeds. These cooling and fan speeds assist in quickly cooling your space to the desired temperature.

The size of this window air conditioner is 17.3 inches wide, 11.1 inches tall, 14.4 inches deep and weighs 39.6 pounds, making for easy installation. The window requirements for this size air conditioner are between 22 and 36 inches, with a minimum height requirement of 16 inches. The power cord is a standard 3-prong plug with 115 volt outlet required.

Key Features:

● Small 6,000 BTU makes for cooling small areas around 260 square feet or less.
● Dehumidification of 1.8 pints of condensed water per hour.
● 3 cooling speeds and 3 fan speeds for quick cooling.
● Energy efficiency ratio of 11.5.
● Digital control panel with included remote control.
● Indoor a-weighted decibel measurement of 55 dBA.
● One-year limited in-home warranty on parts and labor from manufacturer.
● Standard 3-prong plug with 115 volt outlet required.

Frigidaire 5,000 BTU Window-Mounted Mini-Compact Air Conditioner

Best Window Air ConditionersAnother Energy Star certified small window air conditioner is the 5,000 BTU window air conditioner by Frigidaire. This window air conditioner features digital functions and remote control for your convenient cooling needs!

The 5,000 BTU output is ideal for small rooms up to 150 square feet. This size BTU makes for an ideal air conditioner in a bedroom, living room, garage or attic. In addition to the BTU size, the physical size of this unit is 12 inches high and 15 ¼ inches deep.

The required window size for this 5,000 BTU air conditioner to fit is a width between 23 – 36 inches, and a minimum height of 13 inches. With a weight of 42 pounds, installation is quick and painless. For the remote control, 2 AAA batteries are included.

The energy efficiency ratio for this Energy Star unit is 12.2. This energy efficiency guarantees that your air conditioner will save energy when in use, resulting in lower energy cost. The estimated yearly energy cost from the manufacturer is approximately $37 per year.

Frigidaire 5,000 BTU Air Conditioner features an energy saver mode. When in energy saver mode, the air conditioning unit will shut off once the desired temperature is reached. When needing to cool again, the air conditioner will turn on and run accordingly. In addition to energy saver mode, this unit is also equipped with a 24-hour programmable timer. If you like going to bed with a cool room and waking up to a warmer room, this programmable timer will let you adjust the air conditioner to turn on or off at the programmed time.

In addition to energy saver mode, this air conditioning unit also features Effortless Restart. This feature means if the power goes out, the unit will restart with the previously programmed settings when power is restored. This prevents you from having to repeatedly reprogram all your preferred settings every time the power goes out.

This digital small 5,000 BTU window air conditioner by Frigidaire with remote control is perfect for small rooms less than 150 square feet. With energy efficiency and an extremely affordable purchase price, you are sure to save money with this Frigidaire 5,000 BTU small air conditioner.

Key Features:

● 5,000 BTU size is perfect for small rooms up to 150 square feet, such as dorm rooms, bedrooms or small living spaces.
● Energy Star certified with energy efficiency ratio of 12.2.
● Approximately $37 per year estimated energy cost per energy efficiency ratio.
● 24-hour programmable timer.
● Modes include cooling, fan only, or energy saver.
● Fan speeds include low, high, or automatic.
● Effortless Restart included to restart your air conditioning unit to its previously programmed settings in the event of a power outage and restart.
● Remote control included to control air conditioner, fan, temperature and modes from across the room.

Frigidaire 8,000 BTU Smart Window Air Conditioner

Best Window Air ConditionersWhen it comes to smart-home technology, a window air conditioning unit might not be the first appliance that comes to mind. Thanks to today’s technology, you now have the option to control your home’s small window air conditioning unit by the touch of a finger on your Smartphone!

Why would you need a smart window air conditioner? Convenience, of course, but even further than convenience is its usefulness.

You are a personal caregiver for a family member and you have an 8,000 BTU smart window air conditioner cooling the living room at your family member’s house. Your family member calls you at work to notify you that the air conditioner is not working properly on this hot summer day.

Without a smart air conditioner, you would have to either try to walk your family member through turning the air conditioning unit back on to the appropriate cooling temperature, crossing your fingers that it is done correctly, or you would have to leave work to assist. Both scenarios take time away from what you are doing.

Instead, upon receiving the phone call from your family member that the smart air conditioner is not working properly, you open the Frigidaire Smartphone Application on your Smartphone and adjust the air conditioner accordingly. Whether it is the cooling temperature or the fan speed, you are able to control both through the Smartphone application. You are now providing plenty of air conditioning to your family member in need on this hot summer day.

And this is just one scenario to benefit from when choosing a smart window air conditioner! If you are using one for your own personal use, you can utilize the smart-home technology for your own personal convenience or usefulness.

Are you on vacation and have adjusted your central air conditioner to a higher temperature to keep from overusing while no one is there? With a smart window air conditioner, you do not have to come home to a stuffy house. Instead, before you make your way back home, turn on your smart window air conditioner through the Frigidaire Smartphone application. Turning on your air conditioner a few hours before arrival will result in a comfortable living space when you arrive back home!

This smart window air conditioner is 13 7/16 inches high, 18 ½ inches wide and 16 inches deep. With a total weight of 54 pounds, one-man installation of this unit is feasible.

Featuring Energy Star technology, this smart window air conditioner has an energy efficiency ratio of 12.0. With an energy efficiency ratio of 12.0, the estimated energy cost of this unit is $60. For optimal circulation and cooling, this energy efficient air conditioner features two-way slanted louvers on the top of the unit to control air direction and airflow.

In addition to energy efficiency, this smart window air conditioner removes 1.7 pints of condensed water per hour during dehumidification.

This Frigidaire 8,000 BTU Smart Window Air Conditioner includes a remote with 1 lithium ion battery included with the remote. This battery will have to be replaced after excessive use.

Key Features:

● Smart technology gives you the option to control from your Smartphone from both near and far.
● Energy Star certified with an energy efficiency ratio of 12.0.
● Small BTU of 8,000 is ideal for cooling rooms up to 350 square feet, such as dorm rooms, bedrooms, living spaces and garages.
● Dehumidification of 1.7 pints of condensed water per hour.
● Smart technology integrated with Amazon Alexa for voice assistant controls.
● Top directional louvers to control and assist air circulation and airflow.
● Yearly energy cost estimated at $60/year.
● Remote control included.

Window Air Conditioners Comparison Chart

ItemSizeRoom SizeDimensionsWeight
Koldfront WAC25001W25,000 BTU1,500 sq. ft.26.5 x 26.5 x 18.6 in131 pounds
Frigidaire FFRA1011R110,000 BTU450 sq. ft.21.5 x 19 x 14.5 in60 pounds
hOmeLabs HME020003N 5000 BTU150-sq. ft.16 x 15.4 x 12 in36.5 pounds
Friedrich CP08G10B8000 BTU350 sq. ft.20.9 x 18.4 x 14 in64 pounds
Frigidaire FFRA0511R1E5000 BTU150 sq. ft.15 x 16 x 12 in41 pounds
LG LW6017R6,000 BTU260 sq. ft. 14.4 x 17.3 x 11.1 in39.6 pounds
Frigidaire FFRE0533S15,000 BTU150 sq. Ft15.2 x 16 x 12 in42 pounds
Frigidaire FGRC0844S1 8, 000 BTU350 square feet16 x 18.5 x 13.4 in54 pounds

Window Air Conditioners Buying Guide

best small window air comditionerNow that you know the top 8 window air conditioners to choose from, you may still have questions, and understandably so! Whether the air conditioning unit you choose is on this list or not, it is important to know what to look for when buying a window air conditioner.

12 Important Things to Keep in Mind Before Buying a Window Air Conditioner

    • Why are window air conditioners used today?
    • How do window air conditioners work?
    • How long do window air conditioners last?

These are all important questions to ask yourself when deciding to purchase a window air conditioner.

First, it is important to know why window air conditioners remain an essential appliance in today’s world. After all, no one wants to buy an outdated and replaceable appliance. With today’s design and technology, window air conditioning units have come a long way from those loud, unattractive apparatuses of the past. As you have read, some window air conditioners even have smart-home technology built in for you to control through the touch of your Smartphone or through the command of an Amazon Alexa!

  • Controls are Important

Is it important for you to be able to control your air conditioner with a remote, or is a simple turn dial manual control sufficient? Just this simple feature can determine the price tag of your air conditioner. There are even some cheap window air conditioners under $100, depending on the features you require or desire!

Before purchasing the cheapest window air conditioning unit you come across, there are certain key elements to consider before making your purchase.

  • Know the Total Square Footage of your Room

The most important piece of information you need to know is the actual total square footage of the room you are cooling. A smaller area with smaller total square footage can be cooled by a smaller BTU output; whereas a larger room with a higher total square footage will benefit from a higher BTU.

Here is a reference chart to get an idea of what size BTU your room may need based on its total calculated square footage.

Room Size BTU Recommendation Room Size BTU Recommendation

    • 150 square feet 5,000 BTU
    • 700 square feet 14,000 BTU
    • 250 square feet 6,000 BTU
    • 1,000 square feet 18,000 BTU
    • 300 square feet 7,000 BTU
    • 1,200 square feet 21,000 BTU
    • 350 square feet 8,000 BTU
    • 1,400 square feet 23,000 BTU
    • 400 square feet 9,000 BTU
    • 1,600 square feet 25,000 BTU
    • 450 square feet 10,000 BTU
    • 1,900 square feet 28,000 BTU
    • 550 square feet 12,000 BTU
    • 2,700 square feet 36,000 BTU

If you do not know how to measure square footage, it is simple.

Measure the length of the two adjacent walls. For example, if you have a rectangular shaped room, then one wall should be shorter than the other. Measure the length of the shorter wall in feet. Then measure the length of the longer adjacent wall in feet. Multiply those two numbers together and you will get the total square footage of the room you need to cool.

For example, let’s calculate the square footage of a rectangular shaped bedroom with measurements of 10 feet by 20 feet.

Multiply 10 x 20, which gives you 200. Therefore, the total square footage of your bedroom is 200. According to the BTU recommendation above, a 200 square foot room should use a window air conditioner with a BTU output of at least 6,000 BTU.

There are also some additional questions to ask yourself when selecting the appropriate BTU output for your room.

  • Room Location is Important

Is the room you need to cool located upstairs? If your room or area is upstairs, you will want to add roughly 10% to the BTU to account and compensate for the additional rising warm air. Therefore, using the example above, if you add an additional 10% to the 6,000 BTU air conditioner, you are now at 6,600 BTU. As you generally want to be over the recommended BTU size rather than under, you would want to select a window air conditioner of 7,000 BTU.

  • Number of People in the Room

Do you plan to cool a room that will have two or more people within it at all times? If so, it is recommended to add an extra 600 BTU per additional person. Using the example above, adding 600 BTU per person to the original 6,000 BTU gives you a total BTU recommendation of 6,600. Again, you would want to select a window air conditioner above the recommended 6,600 rather than lower. This means you would want to select a window air conditioner of 7,000 BTU output to adequately cool your space.

  • Is the Room in a Shade?

Does the room you are cooling stay shaded throughout the day? The shade coverage can allow you to subtract 10% of the recommended BTU. However, if the room is shaded but still upstairs, no adjustment may be necessary. However, as it is important to always adjust slightly more than the recommended BTU output to adequately cool your space, keeping the original BTU output would be recommended. Subtracting a percentage due to shade may not make much of a difference when it comes to purchase price or overall energy cost.

  • Electrical Requirements of Window Air Conditioners

In addition to room size, you also need to know appropriate electrical requirements.

Some larger BTU window air conditioners require a 30-amp, 230 volt breaker as the plug type is LCDI 6-30P. These are all specific, necessary electrical requirements when operating a higher BTU appliance. Not only must they be installed appropriately, but adequate electrical access is required, depending on the voltage. Smaller BTU air conditioners can be powered with a simple three-prong electrical 110 – 120 volt plug-in outlet. Making sure you have appropriate electrical requirements will help determine the best window air conditioning unit that you install in your needed space. The last thing you want to do is purchase a window air conditioner that you cannot successfully install due to inaccessible or unavailable electrical requirements.

  • BTU Output

Any devices with heating or cooling capabilities is measured using BTU. BTU stands for British thermal unit. A BTU is used for measuring how much energy is needed to raise a pound of water by one degree Fahrenheit.

With a range of BTU output models to choose from, it is imperative to buy the right size BTU output for the space you need. If you are looking to cool an entire 1,500 square foot home, you need a higher BTU model, such as 25,000 BTU. A smaller area of square footage will be best cooled with a smaller BTU air conditioner between 5,000 – 10,000 BTU. For example, a small bedroom or dorm room anywhere from 150 – 350 square feet will best benefit from the cooling of a 5,000 – 10,000 BTU window air conditioner.

Is the room you are cooling upstairs? As warm air rises, an additional BTU output of about 10% from the recommended size will help cool the air adequately.

  • Size and Location

Of course the size and location of the room isn’t the only factor to consider when choosing your new window air conditioner.

  • Adjustable Fan

While air conditioners are designed to provide cool air to lower your overall room temperature, a window air conditioner may be equipped with additional features. These features may help you decide the best window AC unit for you and your space. These features may include adjustable fan settings, various modes, programmable timer, energy saver, or smart-home technology, just to name a few.

  • Energy Efficiency

Is energy efficiency important to you? Then consider selecting a window air conditioner with adjustable fan speeds. Variable adjustable fan speeds help circulate ambient cooler air to help lower the temperature of the space without using the air conditioning portion of the unit. This means less energy consumption and less cost.

  • Programmable Timer

Does your space stay cool during the morning hours but gets hot later in the day? A window air conditioner with a programmable timer will allow you to run your air conditioner during those imperative times you need. By programming your unit to run the air conditioner during those late hours in the day will not only lower cost, but it will also extend the lifespan of your air conditioner! An air conditioner that is not run as often or for long periods of time can preserve the longevity of your unit!

  • Wall Mount Capabilities

Do you need to cool a basement room with no window access? You will want to choose an air conditioning unit with wall mount capabilities.

How Do Window Air Conditioners Work?

In order to know how these features work, you need to know what is within your air conditioner that makes it run effectively.

If you were to dissect a window air conditioner, you would find two important pieces of equipment: the compressor and the cooling coil. These two devices are essential in the air conditioner to correctly regulate and control the desired air temperature within your designated area.

As soon as the window air conditioner is powered on to the air conditioning setting, the condenser starts. When the condenser starts, the cooling coil drops in temperature, cooling the air that is being pulled through it. This produces cooled air to be distributed into your space! Depending on the BTU output of the window air conditioner determines the approximate total area the air conditioner will cool.

As previously stated, preserving and extending the longevity of your window air conditioner is imperative. No one wants to purchase an appliance only to replace it after a few uses, especially during those hot summer months when air conditioning is essential.

How Long Do Air Conditioners Last?

Best Window Air Conditioners ReviewsDo you use your window air conditioner year-round, rather than just during those hot summer months? Do you sometimes forget to change or clean the air filter? Do you have an inadequately sized air conditioner for the space you need cooled? These are all factors that go into determining how long your window air conditioning unit will last.

  • Change the Filters

While the typical lifespan of a window air conditioner is approximately 10 years, this can be extended with proper care of your air conditioner. One way to properly care for your air conditioner is to change or clean the filter frequently. A dirty air filter may cause the air conditioner to work harder to pull in clean air for recirculation, resulting in a dirty, overworked cooling coil. Therefore, it is important to change the air filter frequently.

  • Window Air Conditioner with Alert Mode

Try to find a window air conditioner with an alert to notify you when the air filter needs to be checked. With this reminder, you can successfully clean or change the air filter during the recommended times, resulting in a properly maintained air conditioning unit. In addition to changing or cleaning the air filter, wipe down the condenser and cooling coil. These two mechanisms collect dust and dirt during the air circulation process. The buildup of dust and dirt can result in an overworked system. This overworked system can lower the lifespan of your window air conditioning unit as well.

  • Clean the Drain System

Proper maintenance is not just limited to how often you clean your air conditioning unit and its respective components. There are other factors that go into extending the longevity of your window air conditioner. If your air conditioner has a drainage system where condensed water is released, it is important to clean this mechanism as well. A blocked drain system can result in an overworked air conditioning unit as well, shortening its lifespan. Clean this drain system frequently, including the tubes and drain pan, to ensure sufficient draining. Sufficient draining allows the system to work sufficiently, rather than difficultly. A system having a difficult time operating creates additional obsolescence on the unit. And, you guessed it, shortening the lifespan of your air conditioner.

  • Routine Maintenance

Alternative to lengthening the lifespan of your window air conditioner through routine maintenance, you can also inadvertently shorten it by overuse. No one wants to shorten the longevity of an appliance, but it unknowingly and unintentionally happens. The overuse of an air conditioning unit is not limited to just neglected maintenance. Overusing your air conditioner may be a result of a simple mistake in BTU size for space needed to cool.

  • Buy the Correct BTU Output

Mistakenly buying a window air conditioner with an incorrect BTU output can lower the lifespan of your unit. This can be applied to both BTU sizes too large or too small.

A window air conditioner with too high of a BTU output for the space you have will result in the unit quickly cooling your area. While this sounds like a good thing, a quickly cooled space can also be quickly heated again by ambient air temperature when the unit is not running. Therefore, the unit will power back on again to quickly achieve the lower temperature. This cycle will repeat which can overwork your air conditioning unit potentially reducing its total lifespan.

A window air conditioner with a BTU output too low for the space you have will cause the air conditioning unit to potentially run continuously in an attempt to cool the space to the desired set temperature. This can result in your air conditioner overworking nonstop. An overworked air conditioning unit will create additional obsolescence during its typical 10-year normal lifespan.

Conclusion

You may not have realized how many elements you needed to weigh when searching for the best window air conditioners. It is imperative for you to select the right window air conditioner for the space you need, and one of the above 8 top rated window air conditioners should be the fit you are looking for. Whether energy efficiency, quiet window air conditioner, remote controls, simple manual controls, smart-home equipped, or affordability are the most important feature, prioritize these and narrow your results from those. We also have a list of the top rated portable air conditioners if you are interested in a different kind of air conditioner that we cover here.

Is energy efficiency the next important requirement to fulfill? Then look for an Energy Star certified air conditioner. If the unit is not Energy Star certified, then look for a high energy efficiency ratio. Keep in mind that the higher the number the better energy efficiency and cost saving it will be.

Regardless of your need or wants, there is a window air conditioner unit for everyone. It may take a little research to find the one you need, and hopefully these 8 top rated and best window air conditioners helped narrow your search.