Best Through the Wall Air Conditioners (Buying Guide)

Considering how unpredictable climate change is, the seasons are becoming harsher than ever. Summers are a lot hotter and ridiculously uncomfortable even when you are indoors. Every household needs to have a working air conditioner and not just that, but the best model possible.

There are different types of AC in the market, and they have varying capabilities. These capabilities depend on several factors, such as size, speed, build, and overall performance. In this guide, we will be looking at through the wall air conditioners.

This is a specific type of ACs that you place through the wall, much like the name suggests. They are not that different from window ACs, but we’ll get to that in a bit. In-wall or through the wall air conditioners belong to the category of room ACs and are fit into a hole created in your wall. They suck heat from the room to cool and release.

Like other room ACs, this type is designed to serve the needs of a single room but not several rooms at once. That capability belongs to a central air conditioning unit.

Differences Between Window Air Conditioner and Through the Wall Air Conditioner

While through-the-wall and window ACs are quite similar, they also have noticeable differences. These differences make the ACs suitable for different situations. 

1. Functionality

The most obvious difference is that one is designed for window installation and the other wall installation. Window ACs let out hot air from the back and sides while in-wall vent out heat specifically from the back

2. Space used 

Both units come in varying sizes depending on the size of the room and the power you need. In-wall units can fit into a custom hole anywhere on the wall. Window units are a lot easier to install, but they are not permanent. You’ll have to remove them at the end of the season.

3. Cost and performance

Through-the-wall units tend to be more expensive compared to window units. But you won’t have to worry about them once they are installed. They are also more energy-efficient than window units and will last longer.

The slide-out chassis is designed to vent heat out from the sides as well as the rear. It is an excellent wall sleeve for both through-the-wall air conditioning unit as well as window units.

The through-the-wall sleeve, however, is specially designed for in-wall AC units and vents out heat through the back. It is, overall, the best option.

What Are the Benefits of Through the Wall Air Conditioners?

You probably have various personal reasons why a through the wall unit makes more sense for you. Still, here are some benefits of getting through the wall air conditioners for your room. Hopefully, they will aid in your decision to buy one of these wall AC units.

1. Convenience

In-wall ACs can be turned off in rooms you don’t intend to use. This is convenient and has an energy saver mode. Also, air conditioners are only necessary for a small part of the year. In-wall AC units will save you the trouble of mounting and unmounting the AC every time you need it.

2. Overall cost

Through the wall, air conditioners usually cost a lot more than its cheaper alternative. However, when you factor in its energy-saving and long-lasting capabilities, it becomes a more affordable option. Additionally, you won’t have to worry about the cost of installing and uninstalling it as it offers a permanent solution.

3. They save space

Considering the in-wall unit is placed into the wall, there is a lot more space saved. You will barely notice the unit as it tends to fit snuggly into the wall. Space might not be an issue for big rooms, but for small rooms and compact office spaces, you want an air conditioner that won’t make that won’t make the place feel cramped.

4. Aesthetic appeal

Some AC units are bulky and may change the appearance of your room. If you mind cumbersome appearance and would rather keep the aesthetic feel of your décor, the through the wall air conditioner is your best option. It will be easily tucked away and remain out of sight. The latest versions of these units can give your room a contemporary and elegant look.

Our Picks For the Best Through the Wall Air Conditioners in the Market

Here are our picks for the best through the wall air conditioners in the market. When we made this list, we tried to get something that would work for everyone.

Product Quick Compare

Frigidaire FFRH1822R2 18500 BTU 230V air conditioner with median slide-out chassis

4.2/5

4.2/5

Frigidaire FFRS1022R1 10000 BTU air conditioner

4.1/5

4.1/5

hOmeLabs portable air conditioner with 14,000 BTU

4.4/5

4.4/5

PerfectAire 3PATWH14002 14,000 BTU air conditioner

4.6/5

4.6/5

SereneLife portable air conditioner with 8,000 BTU

4/5

4/5

PerfectAire slider air conditioner with 10,000 BTU

4/5

4/5

EdgeStar AP14001HS portable air conditioner and heater

4/5

4/5

FRIGIDAIRE portable air conditioner with 10,000 BTU

4.1/5

4.1/5

  • Median air conditioner with supplemental heat capability for a room up to 1,050 sq. ft.
  • Supplemental heat capability provides an additional heat source to your main heat source when outdoor temperatures are above 45°F.
  • Low power start-up conserves energy and saves you money.
4.2/5
Quick Specs
  • Dimensions: 25.4 x 23.6 x 17.9 inches
  • Weight: 118 pounds
  • Manufacturer: Frigidaire
  • Model: FFRH1822R2

The Frigidaire FFRH1822R2 18500 BTU 230V is incredible through the wall median air conditioner. It has a supplemental 16,000 BTU heating system. Coupled with its 18,500 BTU cooling system, this in-wall unit is powerful enough to carry out two jobs at the same time. Just keep in mind that this is a supplemental heating system. It is not supposed to replace your primary heating source and doesn’t have that kind of power anyway. However, it should offer decent heating when the temperature outside is not below 45°F.

The AC has a fully functional remote control and is capable of serving a room that’s 1050 sq. feet. It also has a strong dehumidification capacity of up to 5.5 pints per hour. Its electronic controls offer you smart programing with varying speeds you can set to suit your needs.

The unit has a low-power start-up and an energy-saver mode, which will come in handy at conserving energy. This is good for the environment, and it will also save you money. Also, once you have specific settings set, it will stay that way even if the machine is switched off. The moment it is switched back on, it will pick up from where it left.

One of the best features of this AC is its auto mode. It allows the unit to automatically cool air while adjusting speeds in response to temperature changes in the room.

This AC is an excellent multipurpose unit that can also function as a window AC. This is due to its slide-out chassis sleeve. So, if you feel like you want to switch things up, you can have it easily mounted to the window, and it will offer you the exact features of a window air conditioner.

What We Liked

  • Operates quietly
  • It’s multipurpose
  • High energy efficiency
  • Easy to operate

What We Didn't Like

  • It won’t work with the standard 115V electrical outlet. It requires a Special 230V outlet
  • Designed for casement-window or sliding-window installation
  • 10,000 BTU air conditioner cools a room up to 450 sq. ft.
  • Energy Efficiency Ratio (EER): 10.4
4.1/5
Quick Specs
  • Dimensions: 23.5 x 14.5 x 20.2 inches
  • Weight: 72 pounds
  • Manufacturer: Frigidaire
  • Model: FFRS1022R1

Another awesome Frigidaire through the wall AC is that had to make this list is the FFRS1022R1. This AC packs up to 10000 BTU. It is excellent for in-wall installation as well as window installations. If you are going to use this unit for windows, then know it is recommended for sliding horizontal or casement windows.

The AC packs enough power to cool air up to 450 sq. feet. Any more than that, and it will take a lot longer to perform. This is a smart air conditioner with electronic controls that will allow you to program the unit to your liking with the touch of a button. On top of that, you have a fully functional remote control for adjusting fan speeds at a distance. The fans offer a multi-speed feature with three different speeds for optimal temperature control.

You won’t have to worry about unnecessary noises when the AC is running. This is usually very frustrating, especially at night. This unit is designed to operate at a reasonably reduced noise. It also comes with a washable mesh filter that you can slide-out and clean.

What We Liked

  • Four-way air direction feature
  • Multi-speed feature
  • Operates quietly
  • It is high-performing
  • Has energy saver mode

What We Didn't Like

  • The unit is bulky
  • Noise is reduced but not that much
  • Reported cases of problems with shipping such as damages
  • Portable, quiet energy-efficient air conditioner
  • Easy to install, no heavy window unit to lift
  • Built in dehumidifier function
  • Washable air filter 
4.4/5
Quick Specs
  • Dimensions: 17.9 x 15 x 30.7 inches
  • Weight: 72.3 pounds
  • Manufacturer: hOmeLabs
  • Color: White

If you are looking for a compact, portable air conditioner that makes it easy for you to cool air in one room after another, the hOmelabs portable air conditioner is a perfect candidate. This unit’s elegance and sophistication make it an ideal fit for this list. It comes with smart controls that allow you to configure the settings as you please. You can change cooling modes and adjust fan speeds with the touch of a button. It comes with an easy-to-use remote control so you can operate the unit from a distance.

This hOmelabs AC is designed with energy efficiency in mind. It is equipped with an eco sleep mode that lets it run at low energy. The model has one of the lowest operating noise you can find. It is a suitable option if you tend to find AC noise frustrating. It also comes with an automatic vertical swing functionality that lets it distribute cold air evenly throughout the room. Aside from fancy features, this unit is quite powerful, with up to 14,000 BTU. It is capable of cooling rooms with 550 to 700 square feet.

Portable AC’s are the easiest to use as they don’t require detailed installation. They don’t come with installation costs as you can easily set them up yourself in minutes. This hOmelabs portable unit is no exception. Its stable wheels and compact size measuring 17.9 by 15 by 30.7 allows you to move it around with ease.

The AC has a built-in dehumidifier with an output for hot air. This process does not tamper with the cooling capacity in any way. One of the best features of this unit is its filter indicator that will light up to remind you it is time to clean the air filter. So, you won’t have to worry about forgetting.

What We Liked

  • It is quiet and has high energy efficiency
  • It has an intuitive control panel and remote control
  • Smart filter indicator
  • It’s easy to set up

What We Didn't Like

  • It does not have a built-in reservoir for catching water discharge
  • Heating and cooling in one package
  • Split filtration system
  • Remote control with embedded thermostat
  • Fits all standard wall sleeves
4.6/5
Quick Specs
  • Dimensions: 26.8 x 28 x 17 inches
  • Weight: 78 pounds
  • Manufacturer: Perfect Aire
  • Model: 3PATWH14002

This PerfectAire through the wall air conditioner is a powerful unit with a cooling capacity BTU range of 14,000. Also, it supports supplemental heating with 10,000 BTU. It is an awesome AC with a reliable flow of cold air that will keep your room cool for a long time to come. The AC is powerful enough to cover rooms between 550 to 700 square feet. For such rooms, there is little need for a secondary heating system as this unit is capable of handling the heating demands.

This, through the wall air conditioner, has a smart control system. You should be able to configure your settings to suit your needs with the touch of a button. The remote control is embedded with a thermostat feature, which means the unit will keep running until the room temperature matches the one set on the remote.

The AC has two filter systems for the optimal collection of dust and unwanted substances, which can be damaging to the machine. It also comes with a ‘check filter’ light on the control panel that alerts you when the filter needs cleaning.

You should know that most through-the-wall air conditioners do not come with wall sleeves as they are sold separately. This unit does have its PerfectAire sleeve, which is sold separately, but it’s also designed to fit a standard wall sleeve.

What We Liked

  • It is multipurpose
  • Comes with two filter systems
  • Includes a filter indicator
  • Fits any standard wall sleeve

What We Didn't Like

  • It does not support standard 115V outlets
  • It is loud
  • Handy and portable
  • 3 operating modes
  • Built in dehumidifier
  • Remote control
4/5
Quick Specs
  • Dimensions: 13.8 x 27.2 x 14.6 inches
  • Weight: 46.3 pounds
  • Manufacturer: Sound Around
  • Model: SLPAC8

The SereneLife portable air conditioner is one of the most aesthetically pleasing portable ACs. It is a compact build with a sleek and sophisticated design. It is quite handy and won’t give you trouble moving it around. One of its admirable features is its lightweight construction.

However, the stylistic appearance does not take away from its performance. It comes with a three modes cooling system and an inbuilt dehumidifier. You can alternate through the modes as you like either with its digital control panel or smart remote control.

SereneLife portable air conditioner has up to 8,000 BTU cooling capacity. It can cover about 215 square feet with an airflow speed of 290 M3/hr. It is a compact unit with amazing features, and you should find it convenient if you like smart, intuitive controls.

However, it does not pack the most power, and it may not be suitable for larger or medium-sized rooms. Granted, it will perform okay, but it will always seem to take longer for your room to settle into an ideal temperature.

What We Liked

  • It has a sleek, elegant design
  • The AC is compact and easy to move around
  • It has smart controls
  • The AC is lightweight
  • Energy efficient

What We Didn't Like

  • Not very powerful
  • Quite loud
  • Adjustable temperature settings that range 62°F – 86°F (17°C – 30°C)
  • Expandable window mounting kit
  • 3-speeds in both cool and fan modes
  • Full function remote control
4/5
Quick Specs
  • Dimensions: 23.5 x 14.8 x 21 inches
  • Weight: 72 pounds
  • Manufacturer: Perfect Aire
  • Model: 3PASC10000

This Slider Air Conditioner from PerfectAire has you covered if you are looking for a versatile air conditioner that can fit any standard window. It accommodates different window styles, such as casement or horizontal sliding. It can be easily adjusted to fit. The unit measures 23.5 by 14.8 by 21 inches and packs up to 10,000 BTU cooling capacity. If you are looking for an AC that can cool air in a room fast, then this unit is a great candidate. It will cover an area between 400 to 450 square feet.

You can set up to three speeds for both cool and fan modes. These features are pretty convenient for optimal performance. The air conditioner is equipped with a digital control panel for easy one-touch operation. It also comes with a fully functional remote control embedded with thermostat technology for convenience. Some of its admirable features are the auto, sleep mode, and energy saver mode that function smoothly and conserve power.

The air filter on this unit is mounted on the front, and it can be easily removed by tilting it out. You should have a problem when it comes to cleaning.

What We Liked

  • It is a high-performing unit
  • It’s one of most quiet ACs on the market
  • Rapid cooling
  • Thermostat technology

What We Didn't Like

  • Reported problems with shipping like damages
  • Cools up to 525 Square Feet (depends on heat load)
  • Maximum noise level: <56dB; 24 hour
  • Thermostat can be programmed to temperatures from 61 degrees F – 89 degrees F
4/5
Quick Specs
  • Dimensions: 15.8 x 18.9 x 35.2 inches
  • Weight: 75 pounds
  • Color: Black/Silver
  • Model: AP14001HS

For a portable air conditioner, this EdgeStar AC works amazing when it comes to cooling, large rooms. With 14,000 BTU dual hose, this is a unit you can rely on for excellent performance. The AC has a rapid cooling functionality and can cover areas up to 525 square feet. The dual hose is an excellent feature for this unit and allows extra inflow of cold air, which contributes to rapid cooling.

The unit has an admirable energy efficiency feature. It uses a lot less energy than many through-the-wall air conditioners in its category. It is equipped with three fan speeds, one of the latest innovations in the industry. You can adjust power levels to get your ideal output and noise settings.

Overall the unique feature this EdgeStar air conditioner brings to the table is its smart, 24-hour programmable controls. Once your settings are configured, the unit automatically stores them, whether there is power or not. You can program your settings using the unit’s 24-hour timer, and it will allow it to power and switch off automatically even when you are not around. With these settings in place, you can always come home to an already cool environment.

What We Liked

  • Dual hose airflow
  • 24-hour programmable timer
  • Rapid cooling capacity
  • Equipped with three fan speed

What We Didn't Like

  • Its heating mode is not powerful
  • There are issues with customer service and warranty
  • Filter type: anti-bacterial mesh
  • 10, 000 BTU portable room air conditioner. Cord Length-6.5 feet
  • Voltage Rating: 115V 60Hz|Amps (Cool): 9|Watts (Cool): 920
4.1/5
Quick Specs
  • Dimensions: 15.2 x 18.7 x 27.9 inches
  • Weight: 65 pounds
  • Manufacturer: Frigidaire
  • Model: FFPA1022U1

This portable air conditioner from FRIGIDAIRE boasts a simple yet practical design. It will run according to your preset configurations until your desired temperature is attained. The AC comes with three fan speeds for optimal flexibility when it comes to cooling power. It should be able to do a good job considering the three fan speeds are some of the latest innovations in the AC world.

With a cooling capacity of 10,000 BTU, this air conditioner should be able to cool air in your room rapidly. One of the best features of this unit is the smart control panel. It allows you to program the unit to your liking and preset it for automatic operation even when you are not around.

The unit comes with an anti-bacterial air filter to keep out unwanted microbes as well as dust. You get to enjoy a comfortable and healthier environment.

What We Liked

  • Superior hose and window kit
  • Preset timer
  • Three fan speeds
  • Anti-bacterial filter
  • Easy to set up and operate

What We Didn't Like

  • It’s pretty loud
  • It is cumbersome

Room air conditioners are the most convenient and space-saving air conditioners around. They perform excellently with energy conservation systems added to their designs. All the wall AC units are pocket-friendly, with some brands selling a bit higher than the rest. In such cases, it’s up to you to decide if the price is worth it.

Thank you for reading with us today! Let us know in the comments if there are any through-the-wall air conditioners we missed. Be sure to check out similar reviews of the best products online through ReviewsCube.

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