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Customer reviews for Windmill WhisperTech 10,000 BTU Smart Wi-Fi Ultra Quiet Inverter Air Conditioner for
Windmill WhisperTech 10,000 BTU Smart Wi-Fi Ultra Quiet Inverter Air Conditioner
4.8 out of 5 stars
stars1,364 ratings1,363 reviews
  1. 5 stars89% (1,216)
  2. 4 stars7% (91)
  3. 3 stars3% (41)
  4. 2 stars1% (14)
  5. 1 star0% (2)

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Feb 5, 2026
SC
5 out of 5 stars review

Great ACs and Customer Service

We've purchased 4 Windmill ACs over the years, replacing the old ones our apartment had installed. We've tried several of the older and newer major brands and Windmill is easily the easily the best combination of quiet enough to sleep with, quickest to cool a room, convenient (controlling and programming from their easy to use app), and best looking inside and outside (not so important but a welcome tally). Additionally, their customer service and warranty/replacement policies are great. Windmill's ac's work really well consistently, but nothing is perfect—when one of our machines inexplicably stopped working they replaced it really quickly (within two days!) at no charge. It's always nice to be able to support a small business when you can and it's even nicer when their products a great and they back it up.Oh, and reply to the owner's, Mike's, emails, he'll respond and help out when needed!Very, very easy to recommend Windmill.

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Jan 21, 2026
David S.
5 out of 5 stars review

Best window AC ever!

I've gone through many window AC units but Windmill is by far the best. The installation is seamless and easy since the unit itself is so sleekly designed, no rough or sharp edges that could scrape you. Having it be able to pair with a phone app makes its use that much simpler, it's really a breeze. And it's so much more quiet than any other brand I've used. You can finally hear the TV even when the unit is on full blast, which is something that we used to overcome by using close captioning because other brands were so loud. We have 2 Windmill units now, one for the bedroom and one for the living room. If we ever needed another we would for sure get it from them. We can't recommend Windmill enough.

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Jan 19, 2026
Carol
5 out of 5 stars review

Best AC out there

I purchased 2 WhisperTech ACs for my small NYC apartment after seeing how well the unit worked in my daughter's studio apartment. I am very happy with the units. They are quiet and I really like that they don't blow air out the front of the unit, but from the top! My bedroom unit is fairly close to my bed and I don't have the problem of feeling the cold air while I am sleeping. This is such a welcome change to the older unit I had that was loud and blowing constanting in my face! And in living room, there is no problem watching TV or listening to music because the AC makes only the slightest of sounds while on. Customoer service is also top notch. I was having an issue with the charcoal filters and my problem was quickly resolved. The employees are very responsive and helpful.

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Jan 11, 2026
Kimberly a. D.
5 out of 5 stars review

Happy Windmill Customer, x4!

We recently switched all of our air conditioners to Windmill. They are so quiet, you don’t even know they’re on. Even on the high setting, it is nothing compared to other units. I enjoy them and they have helped cool our older home down in the summer. We will definitely purchase other windmills in the future, if needed!

Review from Windmill
Helpful?29K5UQ241WTT13593769400
Jan 26, 2026
Stacy
5 out of 5 stars review

Don't hesitate, they're great!

We purchased three Windmill AC units at the same time after unexpectedly needing to replace our previous brand, and we couldn't be happier. Affordability was important, but so was finding something that was both powerful and quiet—especially with Chicago summers that regularly hit well over 100°.We keep our window units installed year-round since radiator heat can be unpredictable, and even in the coldest months our home can feel uncomfortably warm. Because of that, we also wanted something that looked great and wasn't an eyesore. Windmill delivered on every front.I was initially drawn to the simple, clean design, but the performance has been just as impressive. We've used these units for three seasons now with zero complaints. Bonus points for the seamless Google Home integration—we love being able to adjust the temperature remotely and keep our dogs comfortable when we're away.

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Feb 20, 2026
Stephanie G.
5 out of 5 stars review

The Upgrade of a Lifetime

My husband and I purchased two Wind units last summer after our (not so old) units from a certain brand experiencing awful mold issues were deemed unfit for use. We are so distraught and really put time and effort into shopping for replacements. When we found Windmill, we knew we found a brand we could trust. Installing the units was a breeze - I did it 99% by myself, with a quick hand from my husband to support them before locking in. The custom side panels are amazing! Create a chic and clean look that feels very well insulated. The whole profile of the units is sleek and designer looking. Operation-wise, the units are whisper quiet and cool extremely efficiently/quickly. We will be moving homes this summer, and I'm honestly excited (something I never thought I'd say) to get our units in the new windows! Windmill is an changer when it comes to window ACs.

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Jan 21, 2026
Lauren
5 out of 5 stars review

Wonderful AC

This AC is great! It is so quiet, perfect for my living room. I really appreciate being able to control the unit on the app on my phone so I can make adjustments for my dog or turn it back on before I get back from a trip so my apartment is cool by the time I get home. This along with my air purifier were well made purchases from Windmill.

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Jan 16, 2026
Lauren G.
5 out of 5 stars review

Excellent Unit

I have purchased 4 units for my home and an air purifier. All are aesthetically pleasing and efficient. They are quiet, sleek and keep our home comfortable! Being able to use the app before getting home has been key, as I don't need to waste electricity keeping them on all day. I have recommended to family members and friends.

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Mar 11, 2026
Michel C.
5 out of 5 stars review

Awesome little window AC

I got the 6000 BTU version for a teenager's small bedroom. The unit was great. Very easy to install. Looks sleek. Having it available through the app is a nice bonus. Plan to replace older, less efficient units with other Windmill ACs this coming summer

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Feb 1, 2026
Brieta D.
5 out of 5 stars review

Best AC unit

I've owned a competitor u-shaped window unit and love the Windmill more! The design is perfect and doesn't stick out in our living room. It was incredibly easy to set up and I love that you can control it via your phone when you aren't home. I recommend this unit to everyone.

Review from Windmill
Helpful?29K5UQ241WTT13593769400