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The 7 Best Air Conditioner for Garage with no Windows [2022]

Ideally, your garage should come with windows, but if it doesn’t, then you know how crazy the temperatures can get especially during the summer. Windows not only provide rooms with ventilation but warmth and light as well.

A garage without windows will feel extremely hot and stuffy seeing as hot air gets trapped since it has nowhere to go. If this is your predicament, you need not settle and suffer from soaring temperatures in your garage. Because there are some air conditioners on the market that can help you keep the temperatures in your garage comfortable.

AC for Garage with no Windows

That said, getting the best ac for a garage with no windows can be a tricky affair and that is why it is necessary to have a guide to refer to as you shop. That’s exactly what this is, so if you are in the market for one, keep reading. It will be worth your while.

Top AC for Garage Without Windows: Comparison Table

Before we go any further, here is a comparison table for you. We understand that you may not have the time to go through the entire guide, or you are simply not up for it.

The table offers a summary of our top options when it comes to the best ac for garage with no windows and that should help you make an informed decision faster.

RankProduct NameWeightControl Method
1Senville Mini Split Air Conditioner66.1 poundsRemote Control
2Black and Decker Portable Air Conditioner52.9 PoundsRemote Control
3Koldfront Wall Air Conditioner68.3 PoundsRemote Control
4Pioneer Wall Mount Air Conditioner19 PoundsRemote Control
5Whynter Dual Hose Portable Air Conditioner80 PoundsRemote Control
6MIDEA 3-in-1 Portable Air Conditioner, Dehumidifier, Fan24.3 KilogramsRemote Control
7LG Through-the-Wall Air Conditioner77 PoundsRemote Control

7 Best Air Conditioner for Garage with no Windows in Review

If you are in the market for the perfect garage ac unit without window, here are some of the options you can choose from.

1. Senville SENL-12CD Mini Split Air Conditioner

This unit makes the perfect addition, to your home and garage to serve your heating and cooling requirements. It packs enough power to cool spaces between 450-750 feet which describes the average garage.

The AC comes with an adjustable inverter compressor and you will appreciate that if you are keen on conserving energy because it restricts the energy consumed. This inverter along with a 9.0 HSPF and 19 SEER rating guarantee that your power bills remain on the lower side.

You also get to pick the “Eco Mode” to operate the AC at a standard 75°F. This helps you conserve even more energy.

What we Liked About It

Air conditioners are known to be noisy when running. However, this unit runs quietly with 41dB being the maximum indoor noise level. This can be compared to the sound produced when two people are conversing in a quiet space.

Other than that, this unit comes with a few features like variable temperature settings that allow for presetting the times when you want the AC to run. The unit can also be remotely controlled making its operation simple and convenient.

What we loved most about it, however, is that it is easy to install and comes complete with a kit.

What Could Have Been Better

The installation of this unit requires a ¼” by ⅜” set kit, that unfortunately does not come with the installation kit. We feel that the manufacturer should have included it to make things easier for the user.


  • Comes with four operation modes
  • It has a sleep function
  • Offers quiet operation


  • Crucial installation accessories must be bought separately

2. Black and Decker BPACT08WT Portable Air Conditioner

One of the first things you will notice about this piece from Black + Decker is that it is quite lightweight. This is one of the most important features to look out for when looking to get a portable ac unit for garage with no windows. Again, that makes it the perfect addition for smaller spaces such as your garage.

Unlike the previous unit that has four operation modes, this one comes with three but that doesn’t mean it won’t do its job when it comes to keeping your garage cool.

What we Liked About It

You realize that this AC comes with an in-built self-evaporating system and what that means is that there will be no bucket to empty hence stress-free maintenance. Besides, it comes with a remote controller that allows for the selection of operation modes from a distance and we believe you will appreciate that.

The cherry on the cake when it comes to this unit has to be the fact that it has wheels that make it easier to move from one spot to another. It also comes with an installation kit making the process extremely easy even for beginners.

What Could Have Been Better

According to some users, this unit’s exhaust hose is quite short making it hard to let hot air escape. The manufacturer should simply have made the pipe longer to avoid this.


  • Comes with a self-evaporating function
  • Features wheels for easier movement
  • Has three operating modes


  • The exhaust hose could be longer

3. Koldfront WTC8002WCO Wall Air Conditioner – Cool Only

If you are in the market for a powerful air conditioner, you have to consider this one from Koldfront. It has an 8,000 BTUs cooling capacity which is ideal for spaces between 300-350 square feet. Now, this is not as powerful as our first choice, but it will still work for the average garage.

Another great feature about this AC is that it installs through the walls making it the perfect option for garages without windows.

What we Liked About It

This unit comes with several unique features that make it energy efficient so if you want something that will not make your power bills ridiculously high, this has to be it. Moving away from that, this AC has an energy-saving function that will keep the compressor running only when needed.

We love that it has an air filter that is easy to clean thus ensuring that only clean air circulates in your garage.

What Could Have Been Better

Some users have reported that their packages arrived open and we feel that the manufacturer could have done a better job with the packaging.


  • Ideal for garages because of through-wall installation
  • Comes with washable air filters
  • Energy-efficient


  • Could be packaged better

4. Pioneer Wall Mount Ductless Inverter & Mini Split Air Conditioner

This unit from the Pioneer stable is worth considering if you are looking for an efficient climate controller in your garage. It packs 12,000 BTUs of heating and cooling power making it ideal for spaces with up to 500 square feet.

It features a stylish front panel with an LED display that is dimmable as well as a remote controller with a backlit screen that allows for seamless operation even in the dark.

What we Liked About It

You will love that this unit comes with a 3-speed fan motor and the best part about it is that it runs quietly.

Moreover, this unit features a 5-year warranty for the compressor and a 2-year one for the parts. That should tell you that the manufacturer is confident about the quality and we love that about it.

What Could Have Been Better

As per some users, this unit is not easy to install and we feel that the manufacturer should have made it in a way that is easy to install to facilitate DIYs.


  • Runs quietly
  • Can be remote controlled
  • Easy to maintain


  • Not ideal for DIY installation

5. Whynter Portable Air Conditioner ARC-14S

With this unit, you get a less permanent setup but that is understandable because some people do prefer that. You can also vent it using three methods and that makes it versatile.

Just like the previous unit, this one is also ideal for spaces that are up to 500 square feet.

Now, this unit will not offer you quiet operation like some of the others we have discussed, but it has a moderate to low noise level so if you can handle a bit of noise, it could be the one for you.

What we Liked About It

With this AC, you get a dual-hose function and what that does is that it allows for dehumidifying and cooling down of your garage simultaneously. Note that the dehumidifying feature removes up to 71 pints of water from the air daily. This is something that people living in humid areas will appreciate.

Anyway, it has other features like an automatic drain function for exhausting condensation and a programmable timer that allows you to set the times when you want the AC to run.

What Could Have Been Better

This unit is a bit on the heavier side making it hard to move it from one place to another and we feel that the manufacturer should have made it lighter considering that it may have to be moved from one spot to another in the garage.


  • Low noise
  • User friendly
  • Can be operated remotely


  • Quite heavy
  • Low noise

6. MIDEA 3-in-1 Portable Air Conditioner

The design of this unit blocks noise from the cool system from entering your garage and this gives it a remarkable quiet noise level. We are talking about only 42dbA.

As if that is not enough, this AC blow cool air 20 feet away from it helping you achieve cooler temperatures in your garage faster.

What we Liked About It

If you are the kind of person that loves DIYs, you will love this piece because it is quite easy to install and it comes with a bracket to hold it in place as you handle the installation

We love that it is energy efficient as well and consumes 35% less power than the average AC. This not only keeps your power bill low; it also keeps your carbon footprint in check.

What Could Have Been Better

Some users have complained that this unit does not come with clear user instructions which could affect the installation process. We feel that the manufacturer should have put more effort into making the instructions clearer.


  • Energy efficient
  • Easy to install
  • Value for money


  • The user instructions could be clearer

7. LG LT1016CER 10,000 BTU Air Conditioner

The LG 10,000 BTU AC only cools rooms up to 450 square feet unlike some of the units in this list that can go up to 750 square feet. That doesn’t mean that it will not cool your garage adequately though; you only have to ensure that it is within the 450 square feet threshold.

This unit also comes with a stylish look that will add a touch of class to your garage. With a remote as well, you get to control this unit from a distance.

What we Liked About It

You can rely on this unit to last long and that’s because it comes with an anti-corrosion coating to keep it from rusting even when exposed to moisture.

Nevertheless, what we loved most about it is that it runs quietly making it the perfect choice for individuals who cannot stand the noise.

What Could Have Been Better

Judging from reviews, this unit does not perform as expected when it comes to cooling spaces. The manufacturer should have tested its performance before releasing it to the market.


  • Heavy-duty
  • Comes in a stylish design
  • Quiet operation


  • Weak performance

What Types of Air Conditioners are Best for a Garage with No Windows?

Selecting an AC for a garage with no windows is not the easiest task but it cannot be overlooked seeing as a cool garage facilitates productivity when the weather is hot and humid. In that regard, you must get the best AC that will provide remarkable service.

I) Mini Split Air Conditioners

These do not require any ductwork and they are quite small. This makes them ideal for windowless garages. As for the sizing, they come in a range from 6,000 to 42,000 BTUs. Mini Split ACs offer adequate heating when it’s cold and they are user-friendly.

That said; their major downside has to be that they are quite costly.

II) Wall Mounted Air Conditioners

These can be compared to window air conditioners – only that they do not require windows, The best part about them is that they are high-performing yet energy-efficient.

All you need to do is create a hole in your garage’s wall to use this kind of AC. You may also want to note that these are quieter, safer, and more efficient.

However, the installation process may take up a significant amount of your time so if that’s a dealbreaker, you may want to keep looking.

III) Portable Air Conditioners

These are perhaps the best choice for garages with no windows seeing as they can be installed within minutes and they are not permanently installed.

Other than that, they are affordable and lightweight making them easy to transport.

The major concern when it comes to portable air conditioners is that they are prone to damage because they are usually placed on the floor where they can be bumped into.

Garage Air Conditioner: Is It Worth Buying?

You are probably not aware of this, but most garages do not come with proper cooling and heating systems and this can adversely affect productivity especially when weather conditions are at their extremes.

This is particularly true when the temperatures in your garage are extremely high. It becomes virtually impossible to work in the heat and that is why it is necessary to have an air conditioner in your garage. With an AC, you get to turn the hot air in your garage into cooler air hence making it the ideal environment to work.

So, if you are still wondering if you need an air conditioner in your garage, the answer to that would be a resounding yes! You should certainly consider getting one that will serve you better. Of course, there are several options to consider, but it largely depends on the climatic conditions of where you live.

For Those Living in Mild Summer Conditions

For instance, if you reside in a place that witnesses mild summers, then it would be best to get an exhaust fan seeing as it offers huge air changes in the course of the day.

On the other hand, if your garage is in an area that experiences crazy summer heat, you cannot skimp on getting the best air conditioner for garage without windows as it will change all the humidity and heat into cool air.

Things to Consider for Garage AC

As you get ready to install an air conditioner in your garage, there are some factors you want to consider if you want a seamless experience.

Some of those factors include:

1. Insulation Process

The first thing you probably need to consider is that your AC unit is properly insulated. You want to note that without proper insulation, your AC unit will not be as effective. By that, we mean that the lack of proper insulation in your garage allows cool air to escape making the temperatures comfortable, but only for a while.

Of course, this will make your AC overwork thus shortening its lifespan and raising your energy consumption and costs.

2. Ventilation Process

You also want to ensure that your garage is adequately ventilated. You can vent it through a window, door, or exterior wall.

Anyway, it is advisable to vent your air conditioner as it runs because that helps in releasing the hot air in your garage into the atmosphere outside rather than into the AC and right back into your space.

3. Size of Your Garage

For you to pick the right air conditioning unit that will effectively cool your space, you need to know the size of your garage. This is because ACs come with different BTU ratings.

For instance, a unit with a small BTU number will not cool a large garage. As such, you want to get the square footage of your garage and use the dimensions to get a suitable air conditioner.

Considering that most garages come with open space and have no proper insulation, you want to go for an AC with a higher BTU rating.

That’s because it allows for faster cooling of your garage while not overworking the unit.

Without AC, Are There Other Ways to Cool Your Garage with No Windows?

Did you know that besides air conditioners, there are other ways you can use to cool a garage with no windows?

What are these ways? Check them out.

Install Attic Vents

Most garages get extremely hot in the first place because they lack adequate insulation so by installing attic insulation, you prevent heat from getting into your garage hence keeping it cool.

Added Insulation

Insulation refers to any material used to fill spaces like crevices above ceilings and behind walls for purposes of reducing heat through absorption or reflection.

Foam insulation products will generally seal your garage and make temperatures inside comfortable while saving you energy costs.

Use a Swamp Cooler

A swamp cooler uses moisture to cool the air in your garage. Sometimes, it is referred to as an evaporative cooler and it is a great option for garages with no windows.

Use of Portable Fans

A garage exhaust fan is also worth considering for windowless garages. The fan works to eliminate any remnant heat in your garage’s attic thus keeping it cooler.

To better understand you can read this article:

Common Questions About Garage Air Conditioners without Windows (FAQs):

Here are some commonly asked questions when it comes to garage air conditioners for garages with no windows. We believe they will help you get a better understanding of the same.

Q: Can I use a portable air conditioner to cool my garage?

A: Yes, you can. A 1-car garage can be cooled by a 7,000 BTU air conditioner. Generally, the bigger your garage, the more BTUs you need.

Q: Can I use a window AC in a garage without a window?

A: No, this is not possible simply because there are no windows. Instead, you can drill a small hole in the wall to vent your AC.

Q: What is the best AC for a garage with no windows?

A: There are many great options in the market so picking out one as the best may be hard. However, you want to look out for features like portability, and energy efficiency to ensure you are on the right track.


The last thing you want is to have unbearable temperatures in your garage during summer especially if you will be spending most of your time there working. It gets worse if your garage does not have windows.

Luckily, there are ACs in the market that you can use to keep the temperatures in your garage comfortable. With this guide in your possession, picking the perfect one will not be as hard.

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