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10 Of The Quietest Through The Wall Air Conditioners For 2021

If you live or work in a place that is very warm, you might spend a lot of time with the air conditioning on, trying to cool down and make your space a comfortable temperature. While air conditioners can be great, they can also be super noisy and this can be frustrating, especially if you’re trying to work or sleep.

Fortunately, there are through the wall air conditioners out there that are designed to be quiet. These work just like any other air conditioner, yet at a much lower noise, so you can go about your day in peace.

Below we have compiled a buying guide of everything you need to know about the best quiet through the wall air conditioners, including what to look for in a quiet one and even some of our top picks on the market today. So, if you’re ready to live comfortably and quietly, keep reading on.

 

The Quietest Through The Wall Air Conditioners – Comparison Table

Product ImageProduct nameFeaturesStar Rating
1) Emerson Quiet Kool 12K BTU Air Conditioner1) Emerson Quiet Kool 12K BTU Air Conditioner12,000 BTU

Operates around 60 decibels

Remote control, 24-hour on/off timer and sleep mode
4.2 out of 5
2) Koldfront 12,000 BTU Through The Wall Heat/Cool Air Conditioner
2) Koldfront 12,000 BTU Through The Wall Heat/Cool Air Conditioner12,000 BTU for a room of 450-550 square feet

Can be used both in the summer and winter

Quiet operation that does not interfere with every day life
4.2 out of 5
3) Keystone KSTAT08-1C Air Conditioner
Keystone KSTAT08-1C Air ConditionerGenerated about 56.8 dBa

8,000 BTU

Wireless remote
4.3 out of 5
4) KOLDFRONT 12,000 BTU Heat/Cool Window Air Conditioner
4) KOLDFRONT 12,000 BTU Heat/Cool Window Air Conditioner12,000 BTU output

Perfect temperature

Runs quieter than you expect
4.4 out of 5
5) LG LT1016CER 10,000 BTU Through The Wall Air Conditioner
5) LG LT1216CER 11,800 BTU Through The Wall Air Conditioner11,800 BTU for rooms up to 530 square feet

Operates at 60 decibels

Remote control and 4-way air deflection
4.2 out of 5
6) MIDEA MAT10R1ZWT Air Conditioner
MIDEA MAT10R1ZWT Air ConditionerProduces about 55 dBa

10,000 BTU

Dehumidifying function
4.3 out of 5
7) Koldfront WTC8002WCO Air Conditioner
Koldfront WTC8002WCO Air ConditionerAround 52 dBa output

8,000 BTU

Dehumidifying function
4.4 out of 5
8) MIDEA EasyCool Window Air Conditioner
MIDEA EasyCool Window Air ConditionerAs low as 51.8 dBa

12,000 BTU

LED display control panel
4.5 out of 5
9) Bosch Ultra-Quiet 12K BTU Mini Split Air Conditioner
9) Bosch Ultra-Quiet 12K BTU Mini Split Air Conditioner12000 BTU for rooms up to 400 square feet

Can be used in both the summer and the winter

Sleek design
3.7 out of 5
10) KOLDFONT 8,000 BTU Through the Wall Air Conditioner
10) KOLDFONT 8,000 BTU Through the Wall Air Conditioner8,000 BTU

Three fan speeds

Also comes with a remote
4.4 out of 5

 

What Is A Through The Wall Air Conditioner?

A through the wall air conditioner is an air conditioner that is installed on the side of a building or room, so that one side is exposed to the room and the other side is exposed to the exterior space. Also known as a wall mounted AC, wall AC, or wall sleeve AC, these air conditioners help to cool down the room by acting as a reverse heat pump, just like any other air conditioner.

Wall air conditioners are fairly similar to window air conditioners, and also RV air conditioners although there are some obvious differences. The biggest difference is that with wall units, the air is exhausted only out the backside of the unit, while with window units, the air is exhausted in both the back and the sides.

Therefore, you cannot install a window unit into a wall as the sides will be blocked and it will not work properly. However, you can install a wall unit in your window.

 

Things To Look For In A Quiet Through The Wall Air Conditioner

There are a few things you should be looking out for in your wall air conditioner to ensure you get the right one for your home and the one that is going to fit in with your lifestyle.

Noise Level

Of course, if you’re looking for a quiet air conditioner, the noise level that it operates at is going to be one of the first features you look at! Generally, AC units with lower BTU (British Thermal Units) capacity emit fewer sounds compared to those with higher BTU capacities. Most wall air conditioners create between 50 and 60 dB of sound, but quieter ones will operate at a noise level of less than 50 dB.

British Thermal Units (BTU)

BTU is the amount of thermal energy (heat) required to raise the temperature of 1 lb of water by 1 degree Fahrenheit. You generally need an AC with about 20 BTUs of cooling for every square feet, so homes that house more than two people will need around 600 BTU for each additional person. A kitchen will need more BTU, while sunny/shady spots will also have varying BTU needs. Therefore, you need to take into consideration the size of your room and the position of it, plus it’s use, before deciding how many BTUs you will need.

Room Size

You should take into consideration the size of the room you are trying to cool with your air conditioner. If your room is too big for the unit, then you won’t feel the benefits, whereas if it is too small, you may get too chilly! Around 5,000 to 8,000 BTU is enough to cool a small space, while between 10,000 to 12,000 BTU is great for medium to large areas. Anything higher than 13,000 BTU is strong enough for large commercial spaces.

Adjustability and Settings

Many air conditioners come with adjustable settings so you can customize the airflow and temperature in your room. This can be great for ensuring a quiet unit, because if you are finding it too loud, you can adjust it to a lower setting.

Some units also have built-in dehumidifies. Dehumidifiers help to get rid of any excess moisture so your house is prevented from mold.

Efficiency

Having an air conditioner on all the time can use up a lot of energy, so purchasing an energy saving wall air conditioner can be a great way to be efficient. This way, you’ll also feel less guilty about having it on all the time!

If you’re ready to find the best quiet through the wall air conditioner for your home, take a look at the quietest air conditioners we recommend below. These are all available to you on Amazon.

 

The Top 10 Quiet Through The Wall Air Conditioners — Reviewed

 

1) Emerson Quiet Kool 12K BTU Air Conditioner

1) Emerson Quiet Kool 12K BTU Air Conditioner

This 12,000 BTU through the wall air conditioner from Emerson Quiet Kool comes with a standard universal interior trim kit for an existing wall sleeve. With multiple convenient features such as a remote control, 24-hour on/off timer and sleep mode, you can customize this air conditioner to fit your needs. It does require a special 230-volt/20-amp electrical outlet and will not operate with a standard 115V household electrical outlet, so this is something to keep in mind.

This air conditioner operates at around 60 decibels, quiet enough to not disturb you as you go about your day. What’s more, this unit is energy efficient and can help you to save on utility bills.

Key Features:

– 12,000 BTU
– Operates around 60 decibels
– Remote control, 24-hour on/off timer and sleep mode
– Energy efficient

 

 

2) Koldfront 12,000 BTU Through The Wall Heat/Cool Air Conditioner

2) Koldfront 12,000 BTU Through The Wall Heat/Cool Air Conditioner

The 12,000 BTU air conditioner from Koldfront covers any room around 450-550 square feet in size with cool air during the warm summer months and heat during the winter. It comes with 4 way air directional louvers, three fan speeds and four operation modes, as well as a remote control so you can customize the settings from anywhere in the room. To save energy, a sleep mode will adjust the temperature periodically before returning to the set temperature after 6 hours, ensuring this AC unit is energy efficient and keeps costs down.

Users also report that this through the wall air unit is quiet and does not disturb you, especially when doing activities such as watching TV or listening to music. What’s more, it comes with a 2 year warranty.

Key Features:

– 12,000 BTU for a room of 450-550 square feet
– Can be used both in the summer and winter
– 4 way air directional louvers, three fan speeds and four operation modes
– Quiet operation that does not interfere with every day life
– 2 year warranty

 

 

3) Keystone KSTAT08-1C Air Conditioner

3) Keystone KSTAT08-1C Air Conditioner

This AC unit from Keystone is also a quiet cooler. It’s a little louder than the previous model. However, the difference is subtle.

This machine features a lot of customizable options. You have your standard choices like cooling modes and fan speeds. However, you can also select the exact temperature you desire. An LCD thermostat on both the remote and the control panel lets you make those decisions.

You’re also getting a unique “Follow Me” feature. The remote’s thermostat will send signals to the main unit to cool the room based on the parameters of where you are. That way, you don’t have to worry about uneven cooling!

Key Features:

  • Generated about 56.8 dBa
  • 8,000 BTU
  • Wireless remote
  • Temperature-sensing feature
  • Three cooling modes and fan speeds
  • Detailed control panel

 

 

4) KOLDFRONT 12,000 BTU Heat/Cool Window Air Conditioner

4) KOLDFRONT 12,000 BTU Heat/Cool Window Air Conditioner

KOLDFRONT helps you keep your home at the perfect temperature on a hot summer day with this air conditioner that has a 12,000 BTU output. Though it can work in large rooms of up to 550 square feet, it runs quieter than you expect. You can adjust the four louvers on the front to change the way the air hits the room. It requires a 220V outlet due to its larger size and will not work with 110V outlets. KOLDFRONT gives you everything that you need to install it in your window along with directions inside the box. Despite its large size, the AC unit does not require a window sleeve.

Key Features:

– 12,000 BTU output
– Perfect temperature
– Runs quieter than you expect

 

 

5) LG LT1016CER 10,000 BTU Through The Wall Air Conditioner

5) LG LT1016CER 10,000 BTU Through The Wall Air Conditioner

This 10,000 BTU through the wall air conditioner from LG is perfect for rooms up to 450 square feet. This is an energy efficient AC unit with a energy efficiency ratio (EER) of 10.6, helping you to save money and save the planet at the same time. Operating at 60 decibels and therefore great for most rooms, this air conditioner features 3 cooling speeds and 3 pre-programmed modes.

There is also an Energy Saver mode that keeps the fan running to circulate air but turns off the compressor when your desired room temperature is reached, and a dry mode removes up to 3.9 pints of moisture per hour. A remote control and 4-way air deflection gives you ultimate flexibility, too. The filter is washable to keep the unit operating at it’s best and there is a 1 year warranty.

Key Features:

– 10,000 BTU for rooms up to 450 square feet
– Operates at 60 decibels
– 3 cooling speeds and 3 pre-programmed modes, including Energy Saver and dry mode
– Remote control and 4-way air deflection
– Energy efficiency ration of 10.6

 

 

6) MIDEA MAT10R1ZWT Air Conditioner

6) MIDEA MAT10R1ZWT Air Conditioner

You don’t need to rely on central air to stay cool. This air conditioning unit from Midea fits most windows. It comes with everything you need to install it.

While most window units are loud, this one isn’t. It generates about 55 decibels of noise thanks to the proficient motor and compressor. Most of the noisy components are to the rear. When properly installed, you’ll have a distinct separation from the front and the rear, allowing you to cut back on noise quite a bit.

As far as performance goes, there’s a lot to love about this AC! It’s a multi-functional machine with many modes to choose from. Use the remote to get things just right as you sit back and relax!

Key Features:

  • Produces about 55 dBa
  • 10,000 BTU
  • Dehumidifying function
  • Wireless remote
  • Sleep mode
  • Energy-saving mode

 

 

7) Koldfront WTC8002WCO Air Conditioner

7) Koldfront WTC8002WCO Air Conditioner

Check out this no-frills option from Koldfront. This AC is on the simpler side of things. You’re not going to find a ton of fancy features. However, it does cover the basics!

The AC unit has a programmable thermostat, which can bring temperatures down to 62 degrees Fahrenheit. A dehumidifier function is also available to remove mugginess in the air. The system has a 24-hour timer, adjustable fan speeds, and other valuable features. There’s even a remote control to let you make adjustments from across the room.

Overall, this is a quiet and straightforward window AC unit. The sound output is respectable given its competitors. It’s certainly a worthy consideration if you need a subtle and efficient machine.

Key Features:

  • Around 52 dBa output
  • 8,000 BTU
  • Dehumidifying function
  • 24-hour timer
  • Straightforward control panel
  • Remote control

 

 

8) MIDEA EasyCool Window Air Conditioner

8) MIDEA EasyCool Window Air Conditioner

Here’s another excellent choice from Midea. This is a feature-rich unit that manages to run quietly regardless of the mode you’re in. At its quietest, the AC generates only about 51.8 decibels. At its highest, the increase is minimal at 56.8! Midea’s strategic engineering makes this a well-rounded unit that you can use in a child’s room, living room, or anywhere else you need some peace.

The control panel is sporting an LED panel and some basic indicator light. There are many ways to adjust the cooling experience to your liking. You can even change the amount of fresh air getting in with a straightforward switch.

Key Features:

  • As low as 51.8 dBa
  • 12,000 BTU
  • LED display control panel
  • Quick cooling feature
  • Mutliple operating modes
  • Remote control
  • Fresh air vent

 

 

9) Bosch Ultra-Quiet 12K BTU Mini Split Air Conditioner

9) Bosch Ultra-Quiet 12K BTU Mini Split Air Conditioner

The Bosch Mini Split air conditioner is a 12000 BTU AC unit, ideal for rooms up to 400 square feet. Great for use all year round, this air conditioner has a sleek and compact design and is super energy efficient, perfect if you’re trying to cut back on your energy bill. It comes with a wireless back-lit remote control that allows you to customize the settings — silent mode, timer, Follow-Me, and turbo speed. There is also a 24 hour function to regulate temperatures all day and night, and a sleep mode.

Most importantly, users have reported how ultra-quiet this air conditioner is, perfect if you are looking for a unit that you can have in your bedroom. This air conditioner comes with a 5 to 7 year warranty and is very simple to install.

Key Features:

– 12000 BTU for rooms up to 400 square feet
– Can be used in both the summer and the winter
– Sleek design
– Energy efficient
– Remote control to change modes
– Ultra-quiet – Indoor Noise Level: 39.5dB on High, 35dBa on Med and 28 dBA on Low

 

 

10) KOLDFONT 8,000 BTU Through the Wall Air Conditioner

10) KOLDFONT 8,000 BTU Through the Wall Air Conditioner

With this through the wall air conditioner, you can now enjoy cool air in spaces where you don’t have windows that will support an AC unit. It produces up to 8,000 BTUs and works in spaces of up to 350 square feet. You can choose from four operating modes depending on how much cool air you need and use one of three fan speeds on slightly cooler days. This AC also provides supplemental heat on days when the temperature drops. Though the buttons on the front let you change the settings, it also comes with a remote. KOLDFRONT offers a two-year warranty on this air conditioner.

Key Features:

– 8,000 BTU
– Three fan speeds
– Also comes with a remote

 

 

Summary

A through the wall air conditioner can be the perfect way to keep certain rooms in your house cool. While some of these appliances can be noisy, the ones in our list above ensure a quiet operation so you can go about your day in peace, or sleep undisturbed through the night. Always make sure you double check your room size in relation to the size of the air conditioning unit to ensure you get the best fit. Which air conditioner do you think you’ll pick?

 

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