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Windmill 10,000 BTU Quiet Window Air Conditioner, Cools up to 350-450 sq ft

Based on 190 reviews
Condition: New
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$399.00
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Availability: In Stock.
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Arrives Thursday, Nov 12
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At a glance

Condition
New
Size
10000 BTU WhisperTech
Model
10W2Wi
Dimensions
22.5"D x 19.3"W x 13.3"H
Weight
71.3 lb
Color
White
Cooling Power
10000 british thermal units
In the box
Tools

Features 5

  • SMART, EFFICIENT COOLING: Unlike standard window a/c models, Windmills WhisperTech dual air intake design pulls in air from the front and the bottom, improving efficiency and delivering ultra-quiet, room-wide cooling at a perfect 45 angle.
  • ENERGY-SAVING PERFORMANCE: With double-insulating side panels, this window air conditioner keeps cool air in, blocks outside noise, and reduces energy consumption for lower utility bills.
  • CONTROL FROM ANYWHERE: Control your AC from anywhere using the top-rated Windmill Air mobile app, plus voice control compatibility with smart home devices for ultimate convenience.
  • PREMIUM FEATURES & DESIGN: This air conditioner includes dual-filtration with a washable mesh filter and optional activated carbon filter, auto-dimming LED lights, 3 cooling settings, and 3 fan speeds for customized comfort.

Specs 38

Brand Windmill
Cooling Power 10000 british thermal units
Special Feature Remote Controlled
Product Dimensions 22.5"D x 19.3"W x 13.3"H
Start year 2022
Seasonal Energy Efficiency Ratio (SEER) 17
Color White
Voltage 115 volts

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


Great and quiet a/c unit!!
Size: 10000 BTU WhisperTech
1st bought the 8,000 BTU whisper tech for our bedroom last summer and we love this a/c so much that hubby and I got the 10,000 BTU whisper tech version for our living room! In comparison to the older a/c units we had in our apartment (3 a/c’s were graciously left behind when we bought our apartment), windmill whisper tech is very soft and quiet—even on the highest fan settings and on cool mode. I love being able to turn on both a/c’s remotely through their app a few hours before coming home and to enter into a significantly cooler apartment after a hot NYC summer day. I also truly enjoy the sleek design and the 45* upward fan that helps to make the room feel cooler faster rather than a standard a/c blasting just one area and that area being very cold. Installation is very intuitive and easy with all the tools you need to make it a breeze (including a nice pair of scissors for the sleek side panels)! Especially after setting up our first one, it takes about 20-30 minutes to set up and use right away—if you need to install a/c brackets, add some more time. If you able to splurge the extra money for the whisper tech a/c’s—especially if people are sleeping where this a/c will be—it is very worth it! I have observed that the set temperature may be slightly off from the actual output or readings in the room (ex: a/c temps are set to 68*, it says that the room temp is 74* but external temp reader reads the room at 76*). This is not a huge deal breaker for me as long as the apartment feels and is under 80* but it may be something to keep an eye on over time. Overall a very solid unit and looks sleek and works very well for me and my hubby’s needs. He is a light sleeper compared to me and is sound asleep while running this a/c! ... show more
Reviewed in the United States on July 8, 2025 by Nattieclo

Best AC on the market!
Size: 10000 BTU WhisperTech
I’m honestly obsessed with this AC unit. I got the 10,000 BTU WhisperTech model, and it has completely exceeded my expectations. First off, the design is so sleek it actually looks nice in my apartment instead of being an eyesore like most window units. But the real standout feature is how unbelievably quiet it is. I kept checking to make sure it was actually on because it’s that silent, even on higher settings. Perfect for sleeping, working, or watching TV without any background noise. Installation was also way easier than I expected. Everything was straightforward, the instructions were clear, and I had it up and running in no time without any stress. It cools my space quickly and evenly, and I love that it feels powerful without being disruptive. You can tell a lot of thought went into both the performance and the design. If you’re on the fence just get it. It’s 100% worth it!!! ... show more
Reviewed in the United States on March 29, 2026 by Melissa Bennett

Buyer beware - Windmill's warranty has some pretty sketchy FINE PRINT
Size: 10000 BTU WhisperTech
The product is modern, very quiet and looks great YET about 4-5 weeks into its "life" it has TWICE unexpectedly made a LOUD clunk, shut down and restarted. I am not an expert on AC units but I would guess this a sign of a defect in either the compressor or invertor. To be clear, this is twice in perhaps a 8-16 hour span of its operation. After providing Windmill with all of the necessary documentation and description of the problem, Windmill has notified me they are a small company and they can NOT honor their warranty unless I can provide VIDEO documentation of the problem. This would make sense if a unit began squealing, spewing out smoke, making continuous loud rattling sounds but WHO is going to sit next to an AC for hours or tens of hours waiting to capture an obvious mechanical flaw on video? Now the weather here in the Northeast has turned to Autumn, the only option I have is to take the unit out of the window, store it for the winter and reinstall it in the Spring ... hoping the defect eventually becomes predictable and commonplace enough to video it. To be clear, Windmill is NOT doubting nor disputing my claim but rather standing behind their policy that they cannot and will not provide warranty service without VIDEO evidence. Therefore my recommendation is to buy one of their 10,000 BTU units if and only if you want a quiet and efficient AC which may or may not develop a mechanical defect within a few weeks ... which Windmill will refuse to service under warranty. I own TWO of their units, have experienced a problem with one of them (in less than two months of intermittent use) and simply don't have the funds to play Russian Roulette with my next AC purchase. Perhaps something positive can be said about the huge appliance manufacturers who WILL stand behind their product. Something to think about: Would you buy a new car from a manufacturer who - when you report the car unexpectedly "loses its steering" every 400 miles or so told you they would honor their warranty if and only if you provided video evidence of this occurring??? If you think this example is extreme ... are you confident my Windmill AC will not create an electrical fire which burns my house? MY suggestion: If you are buying a Windmill AC unit, first compare the model number and serial number to see if either closely resembles mine and think twice about whether you want to spend your money for a product with a VERY seller-biased warranty ... show more
Reviewed in the United States on October 8, 2025 by Dietzson&Watson

Stylish, Quiet and Worth the Price
Size: 10000 BTU WhisperTech
I live in a one bedroom apartment and finally decided to get an AC in the bedroom. I’ve been extremely satisfied with this purchase and especially love that I can control it through the Windmill app on my phone. The sleek design is another big plus; it looks great in the room and doesn’t feel bulky like traditional units. I purchased this last year and it works just as great as the day I got it, and cools the room quickly. I believe it has the standard weight for an AC, if not lighter, it fits perfectly in the window, was easy to set up, and I love how quiet it is! I definitely think the Windmill AC is worth the price. ... show more
Reviewed in the United States on August 19, 2025 by Tiara J.

Windows AC for the modern era
Size: 10000 BTU WhisperTech
Easy to install, nice looking, and quiet. And most importantly, it's efficient and effective. Two of these cooled our entire house during a recent heat wave. It's nice to be able to remotely control it from the app as well and make sure they haven't been left on.
Reviewed in the United States on July 30, 2026 by Laura Rose

Initially noisy
Size: 10000 BTU WhisperTech
Mine is definitely not "whisper soft." It has a high-pitched whine and the motor grumbles and rattles, worse when it's on high. My cheap old air conditioner makes less noise. I'm glad it isn't in my bedroom because I wouldn't be able to sleep. The remote is so minimal as to be useless. The app couldn't find the device. The person I paid to install it threw out the packaging so I don't know if I can return it. He installs a lot of air conditioners so he's not incompetent. The Midea he put in recently is perfect and very quiet. What more could go wrong? Amending my review: After a couple of days the rattle went away and it became quieter. No idea what that was about. Product support was excellent and I'm now a happy Windmill owner. Just be aware that the attractive minimalist design means giving up having a visible panel showing at a glance what all the settings are, which is why I took one star off in the rating. Should be a half. ... show more
Reviewed in the United States on August 4, 2025 by Marcelle

We love our Windmill decision
Size: 10000 BTU WhisperTech
The windmill unit is amazing and 10k btu is a must. A consistent cool air since installing has significantly helped us to avoid those unexpectedly hot days and keep good airflow in our apartment that doesn't have the best ventilation. It's quiet and easy to use. One issue with Wi-Fi connectivity but all it took was hitting reconfigure on the app! We've been considering an AC unit to help supplement our building fan HVAC in the shoulder seasons. TLDR, on hot spring days before the building switches to AC our east facing windows can make our apartment 80 degrees or warmer. We didn't want a big ugly unit so windmill was always a brand we were eyeing. I can confidently say it solved both our problems with 1) a sleek design that maybe even adds to our apartment and 2) a quiet but effective strong cold air flow. 10/10 would buy again. ... show more
Reviewed in the United States on March 29, 2025 by Lunas Dad

A+ Customer Service
Size: 10000 BTU WhisperTech
I had an excellent experience with Windmill’s customer service team. Every representative I spoke with was friendly, professional, and genuinely took the time to listen to my concerns. They responded quickly, communicated clearly throughout the process, and made me feel like my issue was being taken seriously. It’s refreshing to work with a company that values its customers and provides such attentive support. While I hope I won’t need assistance often, it’s reassuring to know that Windmill has a responsive and caring customer service team behind its products. Thank you for all of your help! ... show more
Reviewed in the United States on August 3, 2026 by lila
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