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.
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, although there are some 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.
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.
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.
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 Best Quiet Through The Wall Air Conditioners — Reviewed
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.
– 12,000 BTU
– Operates around 60 decibels
– Remote control, 24-hour on/off timer and sleep mode
– Energy efficient
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.
– 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
With a 8,000 BTU cooling capacity, this air conditioner from Frigidaire is for a room up to 350 square feet. While this is a window-mounted air conditioner, it can also be used as a wall-mounted AC unit as it comes with a slide-out chasis. With a quiet operation of around 54 decibels, this air conditioner is perfect for use in the bedroom and an effortless temperature control maintains your preset room temperature.
There are multi-speed electronic controls with a 24 hour on/off timer to save energy and costs and a full-function remote control so you can operate from the comfort of your couch or bed, too. There is also a heating option which means this AC unit can be used in the winter, too and a washable filter means you can keep the air conditioner working properly all year round.
– 8,000 BTU for rooms up to 350 square feet
– Operates at 54 decibels
– Can be used in the summer and winter
– Remote controlled
– 24 hour on/off timer and multiple speeds
They Keystone through the wall air conditioner is an 8,000 BTU air conditioner that is designed to effectively cool rooms up to 350 square feet. Operating at a noise level of 51.8 decibels on low, this unit is great for any home. With a thermostat built into the remote control, you can not only control the unit from anywhere in the room, but the integrated thermostat also signals the AC to cool the space based on where you are. The filter has very easy access so you can clean it quickly and simply, ensuring your AC unit stays working at it’s best.
There are 3 cooling modes and 3 fan speeds pre-programmed, as well as an auto option so the unit will keep your pre-set temperature constant. The energy-saver mode conserves energy and saves you money by turning off the compressor once your desired temperature is reached, too.
– 8,000 BTU for rooms up to 350 square feet
– Operates at 51.8 decibels when on low
– 3 cooling modes and 3 fan speeds pre-programmed, as well as an auto option
– Remote control with built-in thermostat
– Energy saver mode
This 11,800 BTU through the wall air conditioner from LG is perfect for rooms up to 530 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.
– 11,800 BTU for rooms up to 530 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
The Friedrich Uni-Fit Series air conditioner prides itself on being 25% quieter than competitor’s products thanks to it’s high-density insulation and foam for sound absorption. A 13,500 BTU AC unit, this is another air conditioner that can be used both in the summer and the winter thanks to it’s cooling and heating properties. It has three cooling and fan-only speeds as well as 8-way air flow control, perfect for customization, and is energy efficient to save on your household bills.
You can control this unit either with the display or by using wi-fi, your smartphone and the voice control function. What’s more, this unit will auto restart on it’s own if the power is interrupted, so you don’t need to worry about it once it’s running.
– 13,500 BTU
– For use all year round with both heating and cooling settings
– Built with high-density insulation and foam for sound absorption
– Three cooling and fan-only speeds as well as 8-way air flow control
– Controllable from your phone and with your voice
The Star Air Control air container is an AC unit that can be used in both the summer and the winter as it both heats and cools. A unit with 14,000 BTU cooling power, this air conditioner is perfect for rooms of 700 sq. ft in size. With four modes — cooling, fan, heating and dehumidification — and an outdoor noise level of 59.2 decibels, meaning the inside noise will be much quieter, this air conditioner is perfect for every day use.
There are three different fan speeds for customization, which can be adjusted using the display on the unit or by using the remote control. There are also multiple cooling speeds, an energy saver mode and 24 hour on/off settings for easy use.
– 14,000 BTU
– Outdoor noise level of 59.2 decibels
– Four modes — cooling, fan, heating and dehumidification — for use all year round
– Three fan speeds and multiple cooling speeds
– Energy saver mode and 24 hour on/off settings
This Pioneer 12,000 BTU wall air conditioner has both a cooling and heating mode and can therefore be used in both the summer and the winter. With a whisper quiet operation, this AC unit has a sleek design and a dimmable LED display. The speed of the fan motor is adjustable so you can customize this unit to your needs, and it can also be adjusted using the LCD wireless remote, so you can do it from the comfort of your couch or bed. You can also use the remote to control the 4 operating modes: cooling, heating, dehumidification and ventilation.
A timer function allows the you to set the system to start or stop running at a certain time and night mode function automatically adopts the temperature settings to the naturally changing body temperature levels during the night. Even better, the air filters are washable so you can keep your air conditioner operating at it’s best, too.
– 12,000 BTU
– 4 operating modes for year-round use — cooling, heating, dehumidification and ventilation
– Sleek design
– Whisper quiet operation – 36.0dB on High 23.0 dB on Low (indoor noise level)
– Remote control for easy customization of different functions
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.
– 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
Another air conditioned from Emerson Quiet Kool, this air conditioner is a 14,000 BTU AC unit and efficiently cools and heats up to 700 square feet. Operating at 57 dB, this unit is very quiet, making it ideal for family rooms and other medium to large rooms. Two air exhaust vents combined with three fan speeds give you 8-way flexibility to direct the flow of air where you want it, when you want it, and there is also an integrated 24-hour timer that can be set via on-board controls, a remote control, a phone/tablet app or by voice control.
The LED display makes this AC unit easy to use and an intelligent sleep mode goes one step further by slowly adjusting the temperature and fan speed to keep you comfortable overnight while saving you energy and money.
– 14,000 BTU, perfect for rooms up to 700 square feet in size
– Operates at 57 dB (outdoor noise level)
– Three fan speeds and 8-way flexibility for customization
– 24-hour timer and sleep mode
– LED display
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?