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Homesthetics

7 Best Through-the-Wall Air Conditioner of 2021 [Buyer’s Guide]

Low angle view of building, Manhattan, New York City, New York State, USA

Disclaimer | This article may contain affiliate links, this means that at no cost to you, we may receive a small commission for qualifying purchases.

As the weather takes a turn towards hot summers, it’s no wonder that your thoughts naturally turn towards air conditioners!

Through-the-wall air conditioners are the best if you like even cooling with a not-so-hefty electric bill. These units fit right into your wall and do not take up any additional space in your room. Unlike window AC units, they do not occupy your window.

But we have heard from many that choosing the best option seems quite a daunting task since there are so many variants available. So, we decided to try out the best products and review them to help you make this decision more easily.

In this guide, you will find a detailed description of the top 7 through-the-wall air conditioners, along with their pros and cons. There’s also a buyer’s guide to further help you out.

So, without any further delay, let’s get to the deets.

Top Through-the-Wall Air Conditioner

Document
IMAGE PRODUCT DETAILS
Our Top PickOur Top Pickhstcstbl-table__imageKoldfront WTC8001W 8,000 BTU
  • Weighs 66.6 pounds
  • Cover 300-350 square feet area
  • Has 3 fan speeds
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hstcstbl-table__imageLG LT1016CER 10,000 BTU
  • Weighs 77 pounds
  • Remote requires 2 AAA batteries
  • Consumes 920 watts
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hstcstbl-table__imageKeystone KSTAT08-1C 8,000 BTU
  • Weighs 64.9 pounds
  • 1-year warranty on parts and labor
  • Comes with a remote control
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hstcstbl-table__imageKeystone Energy Star 25,000/24,700 BTU
  • Weighs 145.7 pounds
  • 4 years warranty on sealed systems
  • LCD remote control
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hstcstbl-table__imageKoldfront WTC8002WCO 8,000 BTU
  • Weighs 68.3 pounds
  • Can cool 300-350 square feet area
  • Power cord is 6.5 feet long
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hstcstbl-table__imageEmerson Quiet Kool 230V
  • Weighs 91.9 pounds
  • Provides supplemental heating
  • Split-air vents
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hstcstbl-table__imageFrigidaire FFTA123WA1
  • Weighs 90 pounds
  • Comes with a remote control
  • Consumes 12,000 BTUs
VIEW LATEST PRICE →

Best Through the Wall Air Conditioner of 2021 01

  1. Koldfront WTC8001W 8,000 BTU

If you are tired of your window unit letting outside air come in, it is time to consider Koldfront WTC8001W 8,000 BTU instead. It is a perfect fit for small-to-moderate-sized rooms and is efficient enough to cool them in a flash. This unit also offers a range of features that enhances your air conditioning experience.

Koldfront WTC8001W 8,000 BTU Through the Wall Air...
  • 8,000 BTU cooling - 890 W/7.8A; 4,200 BTU heating -...
  • 300-350 sq. ft. coverage area; Remote control included; 2...

Why Did We Like It?

The best thing about this product is that it is a good bet both in summer as well as in winter. Wondering how?

Well, it provides air cooling during the hot months of summer and also has a heat pump of 4,200 BTUs to provide heat during winter. This dual function makes it stand out among its competitions.

Moving on, it is a great choice if you have a moderate-sized space and you do not want to spend a great deal of money cooling it.

It can easily cool rooms that are around 350 square feet big, and for supplemental heating purposes, it is suitable to heat up around 100 square feet of area. This saves up a lot of running costs in small areas.

Now that we have discussed its effectiveness, let’s throw a little light on its build. It is mainly made of metal and has plastic framing. So, with basic care, it lasts for a very long time.

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What Could’ve Been Better?

There is hardly any complaint with the cooling that this product provides. However, when it comes to heating, we have to say that it can be better. This unit can only be used for supplemental heat and not as the primary heater. But then again, it is not marketed as a heater, so that’s not a deal-breaker.

Pros
  • Can be used for both cooling and moderate heating
  • Saves energy
  • Very suitable for moderate-sized rooms
  • Known for its durability
Cons
  • Not very efficient with heating
  1. LG LT1016CER 10,000 BTU

Next up on our list, we have LG LT1016CER 10,000 BTU. This is best suited for people who have a penchant for good design and effective performance. It is quite suitable to cool rooms that are moderately big, and the coolness stays for a long time even after the device is switched off. To know more, keep reading.

Sale
LG LT1016CER 10,000 BTU 115V Remote Control Through-the-Wall...
  • Your purchase includes One LG 10,000 BTU 115V Air...
  • Air conditioner dimensions – 24” W x 14.41” H x...

Why Did We Like It?

This unit is suited to effectively cool rooms, which are more than 450 square feet in size. It can easily cool rooms of medium size. So, if you are planning to install it in your home, that is a good idea.

Moreover, when it comes to installation, this product will give you no headache. It is super convenient and easy to get this installed. The instructions included in the kit are pretty descriptive, and you will have no trouble if you follow them closely.

When it comes to maintenance, this machine has a reusable air filter, which makes it super easy to clean.

To top it all, the controls of this device are geared towards the highest usability. It has an LED display and a control panel that is quite simple to use. The temperature can also be very easily adjusted. It also enables you to moderate the fan speed according to your convenience.

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What Could’ve Been Better?

Despite the brilliant performance of this product, we wish its packaging was better. The box in which it arrived was a little flimsy, and that could have damaged the parts inside. For a product as good as this one, we hope the manufacturers focus a little more on ensuring that the packaging is better.

Pros
  • Easy to install
  • Functions efficiently
  • Clear user manual
  • Very easy to clean
Cons
  • Packaging is substandard
  1. Keystone KSTAT08-1C 8,000 BTU

Do you hate getting out of your bed trying to switch on the air conditioner? Well, with Keystone KSTAT08-1C 8,000 BTU, you do not have to do that. The LCD remote control enables you to switch on or switch off the air conditioner at any time without you having to move. This item strives to ensure that you get a good night’s sleep.

Keystone 8,000 BTU 115V Through-The-Wall Air Conditioner |...
  • ENERGY STAR-RATED COOLING: With a 10. 6 energy efficiency...
  • TEMPERATURE SENSING “FOLLOW ME” REMOTE CONTROL: With a...

Why Did We Like It?

As mentioned earlier, this device comes with a remote control that has a ‘follow me’ feature. This allows you to control the temperature and fan speed from any corner of the room without you having to move a muscle.

Because it has a built-in thermostat control, there’s no way your room would receive uneven cooling.

Additionally, we all know how much we get worried when it comes to cleaning air conditioners. However, with this item, there will be no such issue. The front-access design enables you to clean the dust off the filters with much ease.

You have to just pull the filter out and either vacuum or rinse it. Putting the filter back in place is as simple as taking it out.

On top of it, this product is a blessing for users who are energy conscious. It comes with an in-built energy saver mode that turns the compressor off when the pre-fixed temperature is reached.

What Could’ve Been Better?

We would have given a full score to this device had it not been for the noise. After a few months of usage, we realized that the noise does get a little bothering at night. However, it is not a problem that a quick visit from the technician cannot fix.

Pros
  • Easy to adjust the temperature
  • Even cooling
  • Very easy to clean
  • Saves energy
Cons
  • Makes noise
  1. Keystone Energy Star 25,000/24,700 BTU

Keystone is quite a popular name in the market, and they strive to bring the ultimate comfort to your family. Their item Energy Star 25,000/24,700 BTU is designed in a way that you can install it through an exterior wall or in a window. The window installation process is further simplified because of the kit you receive with the package.

Sale
KEYSTONE 25,000/24,700 LCD 25,000 BTU 230V Window Wall Air...
  • QUICK TO COOL: The 25,000 BTU air conditioner for...
  • FUNCTIONALITY: Cools a room up to 1,500 sq. ft. with...

Why Did We Like It?

With this item, you can comfortably cool a room that is quite big. It can provide sufficient cooling to a room of around 1,500 square feet. So, you can understand that it is quite suitable for large rooms and also small offices.

With a 5.7 pint per hour dehumidification feature, this item keeps your rooms cool and dry. And this, combined with the dual installation facility, makes it quite versatile.

Even if you choose to install it on a particular wall, it can be done. But for this, you will need a wall sleeve that the manufacturer sells separately.

Moreover, it comes with an LCD remote control that can sense the temperature easily and allow you to adjust it from any corner of the room. So, you do not have to move when you want to make any modifications to the air conditioner. You can also use the remote to use the 4-way airflow to set the direction according to your need.

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What Could’ve Been Better?

The product’s performance and longevity are quite noteworthy. But what requires a major improvement is its control panel. After a few months of using it, we noticed that the control panel lost its color and turned a little blurry. So, that will leave you with the option of only making temperature and fan speed adjustments with your remote control.

Pros
  • Can be used for cooling big rooms
  • Keeps rooms dehumidified
  • Can be installed in multiple ways
  • Powerful remote control
Cons
  • Control panel display is not great
  1. Koldfront WTC8002WCO 8,000 BTU

Are you on the lookout for a device to keep your room cool as the summer months approach? Well, your search ends with Koldfront WTC8002WCO 8,000 BTU. It is best for people who do not like their air conditioners taking up window space. This item can be easily mounted on the wall, without any section of it protruding from the outside walls.

Sale
Koldfront WTC8002WCO 8,000 BTU 115V Through the Wall Air...
  • 8,000 BTU cooling; Coverage area 300-350 square feet; EER...
  • Temperature Range: 62° F - 86° F; Sleep mode; 24 hour...

Why Did We Like It?

Not every room is big and requires a big and extra powerful air conditioner for cooling. This device is perfect for smaller areas of around 300-350 square feet. It consumes power of 8,000 BTU and does not put too much pressure on your pocket once the electricity bill arrives.

To add to the comfort, this device offers programmable time under the energy-saver mode. What this does is that it turns off the compressor as soon as the room reaches the desired temperature. This limits any unnecessary wastage of electricity as the heavy load is cut off the moment it is not required.

Moreover, this item is geared towards providing the user with the best and freshest air quality. It has an in-built dehumidifier that takes out around 2.1 pints of water out of the air every hour. In this process, some of the air impurities also get captured, making the air quality even better.

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What Could’ve Been Better?

We feel that the remote needs some improvement. After using it for a while, the remote started responding very slowly. It would only work from some particular directions. So, we thought there might be some issue with the batteries. However, even after we changed the batteries, it was not of much help. The response rate of the remote needs improvement.

Pros
  • Very suitable for smaller areas
  • Saves electricity
  • Provides best air quality
  • Quite simple to clean
Cons
  • Remote does not work very well
  1. Emerson Quiet Kool 230V

We have almost reached the end of our list, and next up we have, Emerson Quiet Kool 230V. This device is well equipped to provide cooling during hot summer nights and also supplemental heating when the nights are a little cold. It improves air circulation and is also instrumental in reducing the humidity in the room.

Emerson Quiet Kool 230V 14,000 Smart Through-The-Wall Air...
  • SMART VOICE CONTROL WITH ALEXA AND GOOGLE: This Wi-fi...
  • EXCLUSIVE 1-2-5 WARRANTY: Your Emerson Quiet Kool Wi-fi...

Why Did We Like It?

It is designed to cool moderately large rooms up to 700 square feet. Consuming 14,000 BTU power, this item becomes a good suit for houses as well as small workspaces.

Moreover, this device is built to fit through the walls and not suitable for window installations in particular. It is made in a way to fit most all wall sleeves, and in case you do not have any, you can purchase one from the hardware store. The package also includes a decorative trim kit that will definitely make the installation task easier for you.

On top of that, it is very simple to clean this item. The filter can be easily opened and taken out for a good round of washing. Once you detach the filter, you can use a round of vacuum on it or give it a good old wash before reinstalling it.

You do not need to call a technician, as the process is very simple and can be done very well by yourself.

What Could’ve Been Better?

We do not have any problem with the cooling that this item provides. However, there is one thing that we feel needs improvement. The compressor of this device tends to turn off automatically sometimes, making the room turn hot suddenly. If this happens when you are asleep at night, it might cause some discomfort.

Pros
  • Easy to clean
  • Installation can be done easily
  • Does not take up extra space
  • Compatible with Alexa and Google assistant
Cons
  • Compressor can be better
  1. Frigidaire FFTA123WA1

There is no way that we would have wrapped up our list without having mentioned Frigidaire FFTA123WA1. With a 12,000 BTUs cooling capacity, this device has made quite a name for itself in the market. It comes with a lot of adjustable features that make using it extremely comfortable and convenient.

Frigidaire FFTA123WA1 24" Energy Star Through the Wall Air...
  • Width: 24" x Height: 14.5" x Depth: 20.625"
  • Type: Wall - Cooling Capacity (BTU): 12000 - Decibel Rating:...

Why Did We Like It?

This device is loaded with a lot of interesting features, one of them being Quick Cool/Quick Warm. If you come back after a jog and crave a cool room, this feature enables you to get one in a flash. This feature is best when you are looking for instant cooling or heating up.

Moving on, the energy-saving capacity of this item definitely needs a mention. It is designed in a way that it switches on and off at different time intervals to make sure that your room stays cool and your electricity bills low.

Also, with the Sleep Mode that it offers, you can enjoy the most of cooling without having to incur a hefty power bill. The temperature is gradually dropped to ensure that no extra electricity is wasted.

Moreover, there’s also a timer that lets you get a comfortable sleep at night. You do not have to wake up at the wee hours of the morning to do the task manually.

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What Could’ve Been Better?

After using it for a few months, there was just one tiny glitch that we noticed. This unit is quite powerful, but when it is in function, it tends to make noise. If you are planning to keep it switched on throughout the night, the noise might get you bothered. However, as soon the compressor is turned off, the noise gets reduced significantly.

Pros
  • Programmable timer
  • Energy-saving feature
  • Cools the room quickly
  • Easy to clean
Cons
  • Makes substantial noise

Close up of air conditioning compressor fan.

Through-the-Wall Air Conditioner Buyers’ Guide

Now that you know about the 7 top through-the-wall air conditioner and their respective pros and cons, have you made a choice? Well, we understand that you still might be left with some doubt about this decision.

We suggest that you don’t become hasty and take a few more things into consideration before deciding which product to go for. And in this section, we will take you through some of those factors that you should consider. So, let’s take a look.

  1. Power

How powerful your air conditioner should be is directly proportional to the size of your room. You have to be very careful about this because if this is not right, your money will go to complete waste. An air conditioner that is not powerful enough will not cool your room.

The power is generally measured in BTUs, and a higher BTU signifies that it can effectively cool a larger area. You will find the BTU listed clearly on the package, and this should guide your decision about which item to go for.

For a 350 square feet room, an item with 8,000 BTU is good, and for a 1,000 square feet room, 21,000 BTU is sufficient. Pull up a chart from the internet before buying to know what would suffice for your room. You can always consult the store manager to help you out with this.

  1. Energy-Saving

The summer months are mostly followed by a hefty utility bill. But what if we tell you that it can be avoided?

If you go for an item that comes with energy-saving features, your worries will be sorted. Many models have their Energy Efficiency Ratio mentioned on the packaging, and this would give you a clear picture of what to expect.

Moreover, there are additional features that you should opt for if you are looking to save energy. A programmable timer and an energy-saver mode are something that you should look out for.

They are instrumental in switching off the compressor when the room reaches the desired temperature. Once the temperature starts going up again, the compressor switches on. This way, you end up not wasting electricity.

If you take care of these features while buying, you will save a lot of money on bills eventually.

Young black man repairman checking an outside air conditioner unit close up

Verdict

That’s all from our side!

From what we have shared with you, we hope that you will be able to make a more informed choice now. We also hope that you enjoyed reading this guide as much as we enjoyed experimenting and writing about the products.

But before we say our goodbyes, we would like to let you in on our favorites. Koldfront WTC8001W 8,000 BTU is the best overall. If you are looking for a device that would not give you a hard time and is easy to use, LG LT1016CER 10,000 BTU is the best bet.

And if you are on the lookout for something that provides even cooling and also saves energy, Keystone KSTAT08-1C 8,000 BTU is an excellent choice.

Let us know about your favorites in the comments section below. Keep a watch on this space to read more such reviews from us.

Until next time, take care!

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