Best Air Conditioners For Small Window – Reviewed 2021

air conditioner for small window

You want to make your rooms fresh and cool during summers. For this, you need a perfect and exact window air conditioner to purchase. Nothing can serve the cooling purpose the best more than a window Air Conditioner. Fans are okay but they are not as efficient as ACs.

Many different brands are offering Small Window Air Conditioners with various features. To make your purchase easier and quicker, we have selected the top seller ACs for you. There are wide varieties of such ACs available on the market to make the air conditioning job easier.

The ACS from various brands come up with some similar or different features. However, you need to decide upon the required BTUs before purchasing one. If your room is large, you will pick one with higher BTUs.

On the contrary, a small room would demand an AC with minimal or enough BTUs. Secondly, if your room is positioned towards the sun where it directly receives a lot of sunlight. Then again, you need an AC with higher BTUs to get the job perfectly done.

There are some standard measures of how many BTUs your room needs basing on the size. Let refer to this chart once for ease:

  1. 5000 to 7000 BTU: 150 to 350 square feet
  2. 8000 to 12000 BTU:   150 to 350 square feet
  3. 12000 to 18500 BTU:  550 to 1,050 square feet
  4. 18500 to 25000 BTU: 1,050 to 1,600 square feet

Keeping up all of your requirements in mind, we have selected some of the top sellers’ units for you. The units are user-friendly and come with various essentials features. You can make your section based on your needs and budget.

Best Window Air Conditioner Units

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1. LG Window Mounted Air Conditioner

LG LW8016ER review

If you plan to buy something to keep your bills downs, then this LG powerful model with a 12.1 efficiency ratio is all you need. The unit runs on 115 volts that is ideal for window units. It can easily cool down room up to 340 square feet.

Featuring three cooling and fan speeds, these units allow users to enjoy maximum cooling flexibility. With an 8,000 BTU cooling capacity, this unit is ideal for your room. It also features a remote control allowing you to easily control from across the room. The thermometer easily allows you to set the desired temperature.

Other than that, the unit comes with a mesh filter, and an installation kit making it the best unit with easy installation. In short, this unit is relatively quiet compared to its competitors.

  • 8,000 BTUs
  • Cools a room up to 340 square feet
  • Easy to install and maintain
  • Setting up Wi-Fi is a bit hard

2. Frigidaire Air Conditioner

Frigidaire White Energy Star review

The Frigidaire window air conditioner is an energy star-rated unit that is efficient in keeping the bills low. So, save energy and money on your electric bill. The unit works on 115V and comes with a sleek design making it the perfect window-mounted AC for you. With 8,000 BTU cooling capacity, the unit works for a room up to 350 square feet with 1.7 pints/hour dehumidification.

Additionally, it features a complete control app that allows one to operate it. Using the smart device you can change the temperature, control modes, adapt fan speeds and turn the unit on/off remotely.

You would love this unit as it produces fairly low noise. The design is also sleek and aesthetic. The unit is easy to assemble and blows cool air up instead of straight out that makes it the best unit for cooling an area.

  • Cools down room up to 350 square feet
  • 8,000 BTU
  • Easy to install
  • Energy efficient
  • No negative reviews yet

3. Kenmore Smart Room Air Conditioner

Kenmore Smart Room Air Conditioner review

Designed to efficiently cool spaces up to 350 square feet, this is a great unit one can purchase. The device features an electron control panel and a remote. Moreover, you can adjust the fan speeds as per your choice. It comes with three fan speed settings and doesn’t produce any noise. Likewise, the removable washable filters make another plus point.

The device allows you to remotely control it with its Kenmore Smart AC App on your phone or tablet. With 8,000 BTU, it cools spaces efficiently and nicely. The nicest feature of this unit is its compatibility with Alexa.

You can easily interact with the Kenmore smart appliance using Alexa. Overall, it is a great unit with fairly easy window installation and is worth considering. So far so good, this is the perfect unit for a decent-sized room.

  • Integration with Amazon Alexa
  • 8,000 BTU
  • Cools down room up to 350 square feet
  • Confusing installation instructions

4. Keystone Window-Mounted Air Conditioner

Keystone Window Mounted Air Conditioner review

The keystone window-mounted AC comes with 5,000 BTU cooling capacity which is a great thing about it. It is an ideal unit for a small room up to 150 square feet and cools the room fairly quickly. It greatly dehumidifies up to 1.3 pints per hour. However, the electronic controls with LED display permit you easily select options with the touch of a button.

With its temperature sensing LCD remote control, you can easily control the temperature from across the room. The backlit remote screen is fairly nice, and you can turn off all the lighting on the face of the AC unit which is great.  The installation of this unit is quite easy. Moreover, the unit has a sleek design and durable material. You would just love this unit as it works tremendously perfectly.

  • 5,000 BTU
  • Ideal for small-sized room
  • Electronic controls with LED display
  • Durable and aesthetic
  • energy-efficient mode’s performance was not liked by some users

5. Frigidaire Window-Mounted Air Conditioner

Frigidaire FFRA0511R1E review

The Frigidaire FFRA0511R1E5 is one of the best sellers on Amazon. It is a min-compact air conditioner with 5,000 BTU and is ideal for the cooling room up to 150 square feet. This unit uses a 115V electrical outlet for its window-mounted installation and comes with a complete window mounting kit. Moreover, it features Mechanical rotary controls, 2 cool speeds, 2 fan speeds, and 2-way air direction.

Being energy efficient, this unit is tremendously performing well. Shortly, it requires a low power start-up and operation is also quiet with an effortless restart. It is fairly easy to install and comes with complete ease of use. So, if you want to cool an area quickly, the set is on high settings. On the other hand, the low setting keeps you cool comfortably all night without producing much noise.

  • Ideal for room up to 150 square feet
  • 5,000 BTU
  • Easy installation
  • Quick and quiet
  • Fairly noisy
  • Not recommended for larger rooms

6. Frigidaire Mini Compact Air Conditioner

Frigidaire mini compact air conditioner

The Frigidaire FFRA0611R1 with 6,000 BTU is the perfect window air conditioner for you. It easily cools down room up to 250 square feet. The unit features 2 cool speeds and 2 fan speeds providing enough flexibility. Those who want to conserve energy and save money can use it in low power mode.

Moreover, it is lightweight and cools down the room very quickly. Overall, it features seven temperature adjustment settings. Similarly, the effortless restart automatically resumes operating at its previous settings when power is restored. With an awesome cooling job, the unit is quite easy to assemble.

  • Best air conditioner for the price
  • 6,000 BTU
  • Cools down room up to 250 square feet
  • A bit noisy


Cooling down your rooms or basement window in the hot blazing summer seasons is a must. We need one perfect Ac for that. Window-mounted air conditioners are ideal for cooling purposes. Such air conditioners provide enough relief in the hot summers. However, your purchase will be based on various factors. The most important factor people consider is its BTU. So, if you have a large room, buy the unit with higher BTUs and vice versa.

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