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Windmill 10,000 BTU Inverter Window Air Conditioner with WhisperTech - Ultra-Quiet & Smart, Cools up to 450 Sq. Ft. - Easy Install, App/Wi-Fi, Voice-Enabled, Remote Control, High Energy Efficiency

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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Apr 20
Order within 6 hours and 28 minutes
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Style: 10000 BTU WhisperTech


Features

  • Ultra-Quiet Air Conditioner Window Unit For A More Comfortable Home: Curved edges and clean lines make The Windmill AC beautiful inside and out. An auto-dimming LED display and WhisperTech, which is 9X quieter than legacy, non-inverter window ac units, help you sleep more comfortably. This 10000 BTU window air conditioner is also more efficient and quietly cools spaces up to 450 sq ft.
  • The Easiest Room Air Conditioner Installation Kit: A pre-assembled install kit has Windmill's window air conditioners ready to go right out of the box. Also included is a simple-to-follow install guide so you can enjoy ultra-quiet comfort almost immediately.
  • Efficient Cooling: Central air-like airflow comes out at a perfect 45-degree angle. Top vents blow air up and out in the room, not in your face. Windmill's quiet window air conditioner provides the perfect angle for better airflow and uses R32, a refrigerant 68 percent less detrimental to the environment than what's commonly used.
  • Control Your Small Room Air Conditioner Anywhere, Anytime: Integrate The Windmill AC into any smart home, and control from your smartphone for easier access. Its top-rated app lets you turn it on before you get home on a blazing hot day and shut it off remotely in case you forgot. You can also use your voice to control this smart AC window unit using any voice assistance device.
  • 60 Years of AC Expertise: Windmill believes in beautiful, simple technology, better urban living, good quality air, and offering the support you deserve. Combining a fresh, modern perspective with 60 years of AC expertise led to building a smart window air conditioner with todays needs in mind.

Brand: Windmill


Capacity: 10000 British Thermal Units


Cooling Power: 10000 British Thermal Units


Special Feature: Remote Controlled, Inverter Compressor, WiFi Enabled, Dust Filter, Fast Cooling


Product Dimensions: 22.5"D x 19.3"W x 13.3"H


Color: White


Voltage: 115 Volts


Refrigerant: R-32


Filter Type: Activated Carbon Filter


Power Source: Corded Electric


Brand Name: ‎Windmill


Model Info: ‎WM_WhisperTech_10000BTU


Item Weight: ‎62.9 pounds


Product Dimensions: ‎22.5 x 19.3 x 13.3 inches


Item model number: ‎WM_WhisperTech_10000BTU


Batteries: ‎2 AA batteries required.


Efficiency: ‎2.62


Capacity: ‎10000 British Thermal Units


Installation Type: ‎Window


Part Number:


Form Factor: ‎Window


Special Features: ‎Remote Controlled, Inverter Compressor, WiFi Enabled, Dust Filter, Fast Cooling


Color: ‎White


Voltage: ‎115 Volts


Wattage: ‎900 watts


Certification: ‎Energy Star


Batteries Included?: ‎No


Batteries Required?: ‎No


Battery Cell Type: ‎Alkaline


Floor Area: ‎450 Square Feet


Date First Available: May 10, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Apr 20

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

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • We love our Windmill decision
Style: 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 Lunas Dad

  • Fantastic Product, Exceptional Customer Service and Seamless Installation.
Style: 12000 BTU WhisperTech
I’ve had my Windmill AC for two months and could not be happier with its ability to quickly cool my studio apartment, its quiet nature, its efficiency from an energy standpoint, the technology / smart compatibility, and customer service. The unit arrived promptly within two days after purchasing from Windmill, and being someone who supports small businesses, buying directly from the company’s store on Amazon was an added bonus to an already great product. Setting up the AC was seamless and straightforward, with concise yet detailed directions that made the installation process stress-free and quick. The ancillary items provided with the unit (insulation, adhesive foam, hardware, etc.) were great and more than enough to safely and efficiently set up the AC (and required no trips to the hardware store that were all too common with past units I have purchased). From start to finish, I was able to set up the AC unit in under an hour, and contrary to other units I’ve owned that were oversized or required an abundance of foam / installation to prevent cold air from escaping the room, the items provided were more than enough to secure the unit, insulate the room, and make the unit look great. In terms of output and performance, the Windmill AC unit exceeded my expectations from the start, quickly cooling my studio apartment that often gets very warm during the late afternoon. The fact that the air flows up from the unit, versus straight out like many other brands, enables you to cool down a room with tall ceilings or awkward dimensions (very deep room etc.). The “eco” feature is another positive that I’ve loved about Windmill as it balances energy consumption via fan speed and desired temperature to maximize efficiency. Lastly, I spoke to a Windmill representative about the “smart” setup given my disdain with technology, and he went above and beyond to ensure I could operate and monitor the unit from my smart phone – something that I would never have been able to figure out. Overall, I highly recommend this AC unit for anyone looking to have a powerful yet efficient machine and guaranteed easy installation process, not to mention the exceptional customer service and support of small business. ... show more
Reviewed in the United States on August 1, 2024 by Caroline Brennan Caroline Brennan

  • Best AC I've Ever Owned
Style: 8000 BTU
This is an expensive air conditioner, but I feel like when it comes to features per dollar its a great buy. Its much quieter than the other window AC's I have and have ever owned, this was important for me because I run video calls all day from home for work and its nice to be able to have the AC on during a call. The other feature that stands out most to me is the mobile app. You can link the AC to your Wi-Fi and control it from anywhere you have your phone. This means before you get home you can turn it on so your room is nice and cool when you get there. Or you can set it to 'eco' mode so it will keep your room at a stable temperature. The room its in is roughly 15x15 feet and it has no issue keeping it cool. When I open up the doors to my office it more than doubles the space, and it still does a good job keeping it cool despite technically being a larger space than the AC is rated for. Installation was a breeze and they include all the tools you need, including scissors to cut the insulation foam. Its about as stylish as an AC can be, not sticking out as far from the window as most do and blending in with your wall a bit better than most ACs. I may buy more of these for other rooms in my house eventually. If I do I can link them all to the same app and control my entire home's ACs from there which is pretty nice. ... show more
Reviewed in the United States on May 24, 2022 by Andrew Southworth

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