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Customer reviews for Windmill WhisperTech 8,000 BTU 115-Volt Inverter Window Air Conditioner, App for
Windmill WhisperTech 8,000 BTU 115-Volt Inverter Window Air Conditioner, App
4.8 out of 5 stars
stars1,369 ratings1,369 reviews
  1. 5 stars89% (1,218)
  2. 4 stars7% (91)
  3. 3 stars3% (42)
  4. 2 stars1% (14)
  5. 1 star0% (4)

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Showing 41-50 of 1,369 reviews
Feb 9, 2026
Patti
5 out of 5 stars review

A perfect AC

I am impossibly picky, so when I say my Windmill AC is perfect, I mean it. It is shockingly simple to install, has a super-sleek design, is energy efficient, and despite its outstanding cooling power, is whisper quiet to live with in my one-room studio apartment. It also comes from a small business, not a corporate behemoth, with a refreshingly personable approach to customer service. All that to say, I highly recommend the Windmill AC over all the rest. It really is perfect — even if you are impossibly picky like me.

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Feb 10, 2026
Les M.
5 out of 5 stars review

Great A/C

This A/C has been a great investment. It cools very well, runs quiet, although I like the white noise for sleep. I haven't had any issues with it staying connected to WiFi and the app works great. I set up an automation for it to come on at a certain time of the evening and it works flawlessly. Overall great product!

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Jan 26, 2026
C F.
5 out of 5 stars review

Solid AC unit

I live in 100 year old building with 4 exposures (n,s,e,w). We have to rely on AC units to keep our apt cool. We bought 3 units and it has seriously helped. The units are understated, not obnoxiously loud and best of all the app woes quite well to turn the units on before we get home. It's so easy to program them to turn on and off that it almost feels like central air because when we come home it's actually cool! I had an issue with one unit and the customer service was also great. Stand out product and buying experience.

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Mar 16, 2026
Doreen
5 out of 5 stars review

Amazing!

I purchased two of these units last year, and I am so happy with them. I'm happy for 3 reasons. 1. They cool the room down very nicely. 2. They are quiet, very quiet. 3. They look nice in the window - sleek.I have two more rooms that use window AC's; however, the current ones still work, so I can't justify purchasing new ones. But when I do, I will head on over to the retailer that sells these amazing units. Very satisfied customer who will be returning for another purchase or two.

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Feb 3, 2026
Amy K.
4 out of 5 stars review

Great choice!

I love my Windmill AC. It looks so much nicer than most A/C's, it can be co trolled by my phone, and it cools quickly! The only down side is that it would vibrate at certain points when running, but thst was easily rectified by placing a wedge in the window (I used a piece of wood cut to size). It gave enough pressure on the window to stop the rattle.

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Jan 30, 2026
David E.
5 out of 5 stars review

I love Windmill!

I have 3 Windmill AC units, they're all quiet, efficient, and a breeze to install! Replaced older (not too old) traditional window ac units, these inverter units are significantly quieter, and cost effective. We can sleep at night with the unit going in our bedroom, and the smart app makes using them a breeze.Thanks Windmill!

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Feb 4, 2026
Angus L.
5 out of 5 stars review

Best A/C we have ever had!

Living in Manhattan, we have always had in-window air-conditioning that has worked to varying degrees of success from other brands. Windmills AC unit worked as expected, and the integrated app was extremely useful and user-friendly. It wasn't hard to install by myself. We ended up getting a second for our spare room shortly after testing the first. Living through the extreme weather of New York didn't feel like a challenge at all. Highly recommend. Oh, also, their customer service is phenomenal in my experience. There was an issue with our second unit, but once I shared the video of the noise it was making, they rushed shipped a replacement. Tryuely felt like they cared about their brand.

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Feb 10, 2026
Ann H.
5 out of 5 stars review

Happy to have purchased

I love my windmill air conditioner. So quiet and efficient. The cooled air blows out from the top of the unit . The magnetic cover is a genius idea when cleaning the filter. Appealing to the eye and the side cover panels really add to the attractiveness of the unit . I'm planning on purchasing another in the future.

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Feb 19, 2026
Pamela D.
5 out of 5 stars review

Perfect for my Sunroom

Summers in Texas Hill Country can be brutal, especially in a windowed room with no central air. This gem has made my Sunroom a cool utopia for my pack of rescue dogs. Everything about the unit was a breeze (pun intended). The order arrived quickly. It unboxed easily, and setup was detailed step-by-step in the instructions. As a 64 y.o. woman, I was able to do the install all by myself. And with the app, I can control its functions from my phone. I am so impressed, I also bought a Windmill Air Purifier and Windmill Fan!

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Feb 20, 2026
Santababy55
5 out of 5 stars review

World of Difference

Even though I had a new HVAC system installed, I was still uncomfortable upstairs, in my 1925 home. None of my friends had heard of Windmill before, but after I read a review on Wirecutter I decided to try one for my bedroom. It arrived quickly and it was light enough that I could carry it upstairs myself, with little effort (69 y.o. female). In less than 30 minutes, with a little assistance from my teenage granddaughter, we had it installed; it quickly & quietly cooled my upstairs, beyond the bedroom I purchased it for. This is almost so easy to install that one person could do it, but due to the original, 100 year-old windows it required two people to keep the window propped open. Placing and securing it was simple. I love that the vents blow upward and not directly on me. You can hear it cycle on, but I find it no more noticeable than my central a.c. and it does not interfere with my sleep. I'm very pleased with my purchase & the comfort it provides through the sweltering summer months.

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