Windmill Window Air Conditioner - Quiet & Smart, Easy Install, Voice-Enabled, Remote & App Control AC Unit - 10,000 BTU Inverter w/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!

I’ve had to deal with Window units on and off over the last 40 years, some pretty new and some built in the early Sixties (they are REALLY heavy), but I will say this is the nicest I’ve used. But expectations are everything, if you think it will be a miracle machine you may be disappointed. But if you like good industrial design, care how it looks, and love the idea of controlling with your phone, I think you’ll be pretty happy with it. It was easy to unpack, easy to install (with really clear instructions), didn’t require anything not in the box to install (yes, it really does come with scissors to cut the side panels. If you think that’s ridiculous you haven’t been around people under 30 much lately), it’s powerful, and has a great App. I don’t want to pick on anyone else’s review, everyone has their own pain points and expectations, and yours may not be met: no product can be perfect for everyone. But I think it’s a good, well made, and quiet unit, that looks nice and does pretty much what they say it will. The “Inverter” that comes with the WhisperTech just means that the compressor is variable speed; unlike the old units we dealt with that only ran at full blast, this guy will speed up and slow down depending on how much cooling is needed. This can cause the unit to rattle on startup, or make noises when it’s changing speed that people aren’t used to associating with AC units and they assume it’s a flaw. It’s really just a temporary side-effect of a great feature: variable speed means it’s quieter and uses less energy just keeping your room cold than it uses to get it cold in the first place. This is a good thing. I don’t leave a lot of reviews, and this product doesn’t really need any help, it has a great star rating already. But I do see a fair number of one star, “Just don’t buy it!” reviews that are based on things like it broke after a week or the filter isn’t a HEPA filter and that makes the whole thing useless, where they are not reviewing the unit itself, but rather their disappointment that it failed in one specific thing that they hate (it doesn’t say it has a HEPA filter—you may want one but that’s not a flaw in the unit). Just read the description they gave it, and strip out all the shiny phrases and exclamation points marketing put in, and decide if the product they describe is what you want. As I said way at the top, before we all got old reading this review: it’s as good as they say it is. I think most people will enjoy it and think it was worth the money. Enjoy the rest of the reviews!

The two 8000 but units that we purchased have worked well this last season. They are reasonably quiet compared to the window ac units we've had over the years. What I really like is that the cool air comes out the top instead of in your face. It circulates the air better and no shutters to clean or break. They are as easy to install as any standard window unit, and the side panels make for a neat installed look. The app is good, though both units had instances where the room temp display froze up on the app and wouldn't update until the units were unplugged, then plugged back in. Otherwise the app is pretty informative. The remote works fine, but as it's an infrared unit the range is limited. The magnetically held filter cover is pretty trick, and the filter is the same type as you'd find in a split system, plus the charcoal filter. After running them this summer I'm impressed. They're not perfect, but nothing ever is in this world. If the app was flawless, and with an rf remote it would have earned 5 stars. Update: Both 8000 btu units are in their third season and running fine. The app works well enough that I don't know where the remotes are, and I can adjust them anywhere my Wifi signal reaches. With one unit on each floor of our tree shaded 1400 sq. ft. Cape they keeps things nice and cool in temps up to the upper 90's. They look good, work well, and have held up just fine. I took a chance with a relatively new manufacturer and it paid off. I'd buy them again. Update: I ordered a new 5000 btu unit for one bedroom that was tucked away and so far it's worked well. The room is about 150 sq. ft, in size, and it cools the room down very quickly. The assembly instructions were clear and easy to understand. The top rail goes on with a few screws, then the thick accordion panels slide into the sides, and the frames are pushed into the rails. Thats it. It has the same minimalist look but it's a little different from the larger units. The cool air exits from the top front which swivels from straight out to upward, and a small lever to adjust it from side to side. The display is nice and bright and goes blank after a time delay. I did have an issue with the filter. It was hard to insert into the side of the unit, so I reached out to product support. They responded quickly and sent instructions to make it easier to install. It's only been installed for a couple of weeks and so far I'm pretty happy with it. It linked to the app right away, it's nice and quiet and cools the room in a jiffy. 5000 btu ac unit Update: I contacted Windmill about the filter installation issue and they responded that night. They shipped me a new filter after a couple of weeks that's designed to be easier to install, and it works! Now it slides right in with no issues. Our cooling season has pretty much ended up north so the units will be stored for next season. The 8k btu units are still working flawlessly, and the 5k btu unit is working fine with the filter upgrade.

This was a super easy install. My husband was able to install it in less than 20 minutes. It’s VERY quiet. My regular fan is louder than this unit on high. It cooled the room quickly as well. The app was very easy to setup, intuitive and fast. Aesthetically… probably the best looking window unit I’ve seen. Very impressed and definitely recommend.

UPDATE 14 JUL 2025 Nearly 1 year after purchase, used approx 14 weeks combined and this unit is completely DEAD. Around 1 am this morning the unit began flashing and dropped temperature to 60⁰F. When I tried adjusting temperature, the unit turned off. Tried power button, nothing. Unplugged, replugged, tried again. Nothing. Unplugged and decided to try at 5am (when I get up for work). Nothing. For the price point, I certainly expected to get more than 3.5 months of use. INITIAL REVIEW: After 24hrs of use the manual buttons do not work. Cannot turn ac off or on. Cannot adjust temperature. Cannot adjust speed. Cannot select an alternate mode. The remote is semi-responsive: can turn on/off, cannot adjust temperature, cannot select an alternate mode, can adjust fan speed. Additionally, condensation has built up and dropped onto my floor, causing damage. This was so easy to install on my own and looks good too! I love the thoughtfulness of the vanity screen covers - which also helps to block out light. The machine certainly cools well and is very quiet.compared to my last ac. Unfortunately, not being able to customize my comfort is a huge downside.