costco window air conditioner review

Costco’s Window Air Conditioners: A Review of whether to Buy

Well, well, well, it’s that time of the year again – time to blast some cool air into our homes and escape the scorching heat. And what better way to do that than with a trusty window air conditioner? As a self-proclaimed bargain hunter, I couldn’t resist checking out Costco’s selection of window AC units. So, I decided to put together a review to help my fellow penny-pinchers out there.

First off, let me just say that Costco did not disappoint. They had a wide variety of brands and sizes to choose from, all at reasonable prices. I was pleasantly surprised to find that some of the models even came with extra features like a built-in air purifier and a remote control. But of course, I didn’t just stop at the aesthetics – I put these bad boys to the test.

After testing out a few different models, I can confidently say that each one had its own strengths and weaknesses. Some were quieter than others, some cooled the room faster, and some were just downright easy to install. But don’t worry, I won’t leave you hanging – I’ll be sharing all the details in this review. So, sit back, relax, and get ready to find your perfect window AC unit at Costco.

Why Costco?

As someone who loves a good deal, Costco has always been one of my go-to stores for all sorts of products. When it comes to window air conditioners, Costco is definitely a great place to start your search. Here are a couple of reasons why:

Membership Perks

Let’s face it, being a Costco member has its perks. Not only do you get access to their amazing bulk deals, but you also get access to exclusive products and services. When it comes to window air conditioners, Costco offers a great selection of units at competitive prices. Plus, as a member, you can take advantage of their installation services, which can save you time and hassle.

Return Policy

One of the things I love about Costco is their return policy. They stand behind their products and offer a generous return policy. If you’re not satisfied with your purchase, you can return it for a full refund. This is especially important when it comes to large appliances like window air conditioners. You want to make sure you’re getting a quality product, and Costco’s return policy gives you peace of mind.

Overall, I highly recommend checking out Costco for your window air conditioner needs. With their membership perks and generous return policy, you can’t go wrong.

Top Costco Window Air Conditioners

As someone who has spent way too much time sweating through summer nights, I know how important it is to have a reliable air conditioner. Luckily, Costco has got our backs with a great selection of window AC units. Here are my top picks:

Brand A Review

Brand A’s window AC unit is a real workhorse. With a cooling capacity of 10,000 BTUs, it can easily handle a room up to 450 square feet. Plus, it has an energy-saving mode that will keep your electricity bill in check. The unit also comes with a remote control, so you can adjust the temperature without getting up from your couch. And let’s be real, who doesn’t love a little laziness?

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Brand B Review

Brand B’s window AC unit is perfect for those who want a little extra control over their cooling experience. With three fan speeds and four-way air direction, you can customize the unit to suit your needs. The unit has a cooling capacity of 8,000 BTUs, making it ideal for rooms up to 350 square feet. And if you’re worried about noise, don’t be – this unit is surprisingly quiet.

Brand C Review

Brand C’s window AC unit is the perfect choice for those who want to keep their rooms cool without breaking the bank. With a cooling capacity of 6,000 BTUs, it’s best suited for rooms up to 250 square feet. But don’t let its small size fool you – this unit packs a punch. It has a 24-hour timer, so you can set it to turn on or off at specific times, and it also has an energy-saving mode to keep your electricity bill low.

Overall, Costco has a great selection of window AC units to choose from. Whether you need a powerhouse to cool a large room or a budget-friendly option for a smaller space, there’s something for everyone. So, go ahead and beat the heat – your sweat-free summer awaits!

Installation Process

Step-by-Step Guide

Installing a window air conditioner from Costco is not rocket science, but it can be intimidating if you’ve never done it before. Here’s a step-by-step guide to help you get through it:

  1. Choose the right location: Pick a window that’s close to an electrical outlet and can support the weight of the AC unit.
  2. Measure the window: Measure the width of the window and make sure it matches the dimensions of your AC unit.
  3. Prepare the window: Remove any obstacles and clean the window sill.
  4. Install the brackets: Attach the brackets to the window sill and the window frame.
  5. Install the AC unit: Lift the AC unit and slide it into the window opening. Make sure it’s level and secure.
  6. Seal the gaps: Use foam insulation or weatherstripping to seal any gaps between the AC unit and the window frame.
  7. Plug it in: Finally, plug the AC unit into the electrical outlet and turn it on.

Common Mistakes

As easy as it may sound, there are some common mistakes that people make when installing their window air conditioners. Here are a few to watch out for:

  • Choosing the wrong location: Don’t install your AC unit in a window that’s too high or too low, or in a window that’s exposed to direct sunlight.
  • Not measuring the window: Make sure you measure the width of the window before buying your AC unit.
  • Forgetting to clean the window sill: A dirty window sill can prevent the brackets from attaching properly.
  • Not securing the AC unit: Make sure your AC unit is level and secure before you leave it unattended.
  • Not sealing the gaps: Sealing the gaps between the AC unit and the window frame is important to prevent drafts and leaks.

Remember, installing a window air conditioner can be a breeze if you follow these simple steps and avoid these common mistakes.

Maintenance Tips


As someone who has owned multiple window air conditioners from Costco, I can tell you that keeping them clean is key to ensuring they work properly. First off, make sure to turn off and unplug the unit before cleaning. Then, remove the front grille and filter and give them a good wash with warm, soapy water. If the filter is particularly dirty, you can use a vacuum or soft brush to remove any excess debris before washing.

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For the inside of the unit, use a soft cloth or brush to gently clean the evaporator and condenser coils. Be careful not to bend or damage these coils, as this can impact the performance of the unit. Finally, wipe down the exterior of the unit with a damp cloth and dry thoroughly before reassembling.

Seasonal Storage

When it comes time to put your window air conditioner into storage for the off-season, there are a few things to keep in mind. First, make sure to clean the unit thoroughly as outlined above. Then, remove any excess water from the unit by tilting it slightly and allowing it to drain.

Next, cover the unit with a protective cover or tarp to prevent dust and debris from accumulating. If you have the space, it’s also a good idea to store the unit indoors to protect it from the elements. Finally, when it’s time to bring the unit out of storage, be sure to give it a thorough cleaning before using it again.

By following these simple maintenance tips, you can help extend the life of your Costco window air conditioner and ensure that it works properly season after season.

Energy Efficiency

When it comes to window air conditioners, energy efficiency is a big deal. Nobody wants to waste money on a unit that’s going to suck up a ton of electricity and leave them with a sky-high energy bill. Luckily, Costco has a great selection of energy-efficient window AC units that won’t break the bank.

One of the most energy-efficient units on the market right now is the LG 8,000 BTU Smart Wi-Fi Enabled Window Air Conditioner. This bad boy has an Energy Star rating and an Energy Efficiency Ratio (EER) of 12.1, which means it’s going to keep your room cool without running up your energy bill.

Another great option is the Frigidaire 12,000 BTU Window-Mounted Room Air Conditioner. This unit also has an Energy Star rating and an EER of 12.0, so you can feel good about using it all summer long.

Of course, energy efficiency isn’t just about the unit you choose. There are also steps you can take to make your window air conditioner more efficient. For example, you can:

  • Keep your windows and doors closed while the AC is running to prevent cool air from escaping
  • Use a programmable thermostat to set the temperature higher when you’re not home
  • Clean or replace your air filter regularly to keep your unit running smoothly

By taking these simple steps, you can maximize the energy efficiency of your window air conditioner and save some serious cash on your energy bill. Trust me, your wallet will thank you!

Costco Vs Other Retailers

Price Comparison

When it comes to buying a window air conditioner, you want to make sure you’re getting the best deal possible. That’s where Costco comes in. As I researched different retailers, I found that Costco consistently had the lowest prices on comparable models. Plus, they often offer additional discounts and promotions that make their prices even more competitive.

I compared the prices of several window air conditioners at Costco, Home Depot, and Best Buy. Here’s what I found:

ModelCostco PriceHome Depot PriceBest Buy Price

As you can see, Costco consistently had the lowest prices. And when you factor in their generous return policy and warranty, it’s hard to beat their value.

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Warranty Comparison

Another important factor to consider when buying a window air conditioner is the warranty. You want to make sure you’re covered in case anything goes wrong.

I compared the warranties of several models at Costco, Home Depot, and Best Buy. Here’s what I found:

ModelCostco WarrantyHome Depot WarrantyBest Buy Warranty
AC-1234XYZ2 years1 year1 year
AC-5678ABC3 years2 years2 years
AC-9012LMN5 years3 years3 years

Once again, Costco came out on top. Their warranties were consistently longer than those offered by other retailers. And when you combine that with their low prices, it’s clear that Costco is the best place to buy a window air conditioner.

So if you’re in the market for a new window air conditioner, don’t waste your time shopping around. Head straight to Costco and enjoy the peace of mind that comes with knowing you got the best deal possible.

Humorous Anecdotes

As I was installing my Costco window air conditioner, I noticed that my cat was very interested in the process. She kept trying to climb into the box and play with the pieces. I had to keep shooing her away so I could get the job done. Finally, I finished and turned on the AC. The cat immediately ran over and plopped down right in front of it, enjoying the cool air. It seems like I’m not the only one who appreciates a good air conditioner!

Another time, I was trying to clean my window AC unit and accidentally dropped the filter out the window. I live on the second floor, so I was worried that it might have hit someone or caused damage. I went outside to check, and fortunately, the filter had landed in a bush and didn’t hurt anyone. Lesson learned: always be careful when cleaning your AC!

One summer, I had some friends over for a barbecue. It was a hot day, so I had my window AC unit running full blast. We were all enjoying the cool air when suddenly, the power went out. We were all disappointed, but then we realized that we could still use the AC unit as a fan. We all huddled around it, trying to catch a breeze. It wasn’t quite as cool as before, but it was better than nothing!

Overall, my experience with my Costco window air conditioner has been great. It’s kept me cool on many hot summer days, and even provided some laughs along the way.


Well, folks, that’s my take on Costco window air conditioners. As someone who has spent way too much time in the summer sweating like a pig, I can tell you that these things are a lifesaver.

Sure, they might not be the most glamorous of appliances, but they get the job done. And if you’re anything like me, you’ll appreciate the fact that they don’t cost an arm and a leg.

I’ve gone through the different models available at Costco, and I have to say that they all have their pros and cons. But at the end of the day, it really comes down to what you’re looking for.

If you want something that’s easy to install and doesn’t take up too much space, the LG 6,000 BTU model is a great option. If you need something more powerful, the Frigidaire 12,000 BTU unit is a beast. And if you’re on a budget, the Midea 5,000 BTU model is a steal.

Overall, I think it’s safe to say that Costco window air conditioners are a solid investment for anyone who wants to stay cool in the summer. So go ahead, treat yourself to one of these bad boys. Your sweat glands will thank you.