Customer Ratings & Reviews

I've had the Windmill WhisperTech 8K BTU Smart Window AC for 2 months now, could not be more pleased. I ordered with ease online at Best Buy. Arrived on time. It is packed to perfection similar to Apple products. Well-written installation manual. The unit is good looking, it looks like an expensive flush mounted speaker once installed, sleek and beautiful. Installation took about 45 minutes. You need two people, primarily just to steady into the window for safety reasons. You do the entire installation from inside the window. No need to go outside. If you are on the 40th floor downtown, no problem. It comes with attractive side panels and insulation for an attractive "custom" professional fit. The Smart Phone app works perfectly to operate the unit from anywhere. Very quiet. Pushes cold air out beyond the room installed in. Easy to clean the filter about twice per month with a rinse of warm water. The attractive front grill comes off easily and can be custom painted with non-toxic paint to match your decor. My unit is in a bedroom and close to the head of the bed (see photos). The air disperses at a 45 degree angle so you don't have the cold air blowing directly on you. No worry about this unit blowing circuit breakers, as it only draws about 6 amps. It's "Energy Star" certified, which may qualify for a rebate with your electricity provider. 15 SEER rating. I'm already saving 25% on my electric bill and just got started. I have a Central AC unit that struggles to cool the west side of my home in the afternoon and early evening in June, July & August in Oklahoma. This unit solved that problem immediately. Customer service is also outstanding. I have emailed their customer service with a couple of questions and both times received an answer within 15 minutes. Trust me, I researched every window AC unit thoroughly for two months before this purchase. Windmill beats all others. Comparable in price to other units or slightly higher. It's worth it. Totally worth it. You will be so happy and have peace of mind and thankful when you lower your energy costs.

I live in a 3 story townhouse with no central AC in CO. The bottom floor stays cool year round but the main (middle) and top floor tend to get pretty hot during the summers. I bought two of these window AC units for each of the bedrooms on the top floor and they work great at keeping the rooms cool. Even more, if I leave the bedroom doors open, the AC units cool my main (middle) floor so I haven’t needed to buy anything else to cool the rest of my house.

Replaced an old upstairs portable unit that was having trouble keeping up this year. The window unit cools much faster and is able to keep up even during hot sun directly on the roof (bonus room above garage).

I love this air conditioner, very silent and great! I highly recommend it even to my arch enemies!

Unit was easy to install and has performed well temps high here many Days over 100 degrees keeps small bedroom cool. Unit runs quiet when in evo mode it sounds like a helicopter.

I installed this AC in my home office earlier this summer and I am really impressed with how well it performed. Very easy to install. Kept my office constantly at the ideal temp and was so quiet I barely heard it all summer. Found the app easy to setup and simple to use. I purchased the Windmill fan for another room as well and found their app easy to use on both. Finally, this is such a neat looking design and much sleeker than other models I looked at. Extremely satisfied with this product from Windmill!

I like that is quiet but you can still hear the motor but not as much as a traditional Ac, it was easy to install and it looks great, App and Alexa works realy good, and best of all cool the room quickly, will see about the savings on electricity

The quietest air conditioner I have ever owned. It is amazing how quiet this is even when on full cool and full fan. We have it in our dining room just a few feet away from our dining room table and you can barely hear it. It is very easy to install because the side veins are preinstalled on the unit. If it matters to you, the Wi-Fi set up is very easy. It does feel heavier than similar capacity, air conditioners, however.

I saw this on Instagram a couple years back and decided to try this when my old unit broke. I am so glad I did. Installed it in minutes and cools quietly. Not much more I can ask for! Magnet front panel is a little strong but otherwise this thing is really great

I’m really happy with this AC—it cools my room efficiently and quietly. The only thing it lacks is wifi connectivity for remote control. Overall, it’s a great buy!

This is the main source of cooling in my main rooms and it works exactly as described. Not only did this drop my electric bill by about 18% compared to my previous window AC, but now runs much quieter while maintaining the same temps. Works with Google Home so I’m able to tell Google (or use the app) to change the mode, fan speed, and temperature with 0 issues. We’ll see how it holds up in the long run but for the month I’ve owned it, it’s been flawless! Would highly recommend.

I came across this AC while in search for a replacement for a wall mounted unit. This is not compatible but, and since there wasn't much options for that category I just settled for this one and decided to just install it through the window. As with most small appliances these days, unboxing was pretty easy and uneventful. And out of the box, they provide you with the usual accompaniments, but om addition, they also include a pair of scissors, just in case your household doesn't keep one, for the cardboard/plastic cutouts that serves as the cover for the side extenders. This makes for a seamless and clean look, a definite plus. After the install, which, depending on the size you purchase, may require a couple of extra hands, plug-in, and download of the app, the AC is ready for use. For our use, it is quiet but does get a bit louder as you increase the fan speed. Again, for us, it is not as loud as our other AC's and stands out as likely the quietest in our household. Our 8,000 BTU unit provides ample cooling for a small to medium sized bedroom. Depending on the time of the year, of course, and the temperature outside, you may need something larger. I like it as it functions as designed, mostly emits low noise, and can be controlled through the app. I can recommend this product to those looking for something similar.

Love this AC. Didn't think there was actually one that run quite! This one does. The price was great. Was easy to install. Going to purchase another for my other bedroom.

This was a great purchase. Super quiet and efficient. Very helpful instructions made for an easy install. The app is easy to use as well. Highly recommended!

This air conditioner is built very well, looks nice, quiet, but the best part is it really does keep out the outside noises. I live on a busy street and the number of jerks with loud cars, trucks and motorcycles is more than annoying. The unit doesn’t slam on the fan at whatever setting you choose, but ramps it up gently. I think for a box hanging out your window, it looks the nicest. I replaced a typical air conditioner I bought just last year with this one. Spend the extra $100 bucks. You will be happy you did.

Modern style, functional dimensions, and good cooling

Windmill Customer Service: ***** (5 star++) Product: * (1 star) Average the two, and we get 3 star. Ultimately I could not use this machine, and I was very hopeful since they are on Wirecutter's recommendation page. I bought a Windmill Whispertech 8000 from Best Buy to replace a 3 year old unit that was still working but on the way out. I installed it and when the pump kicks in it was very loud and vibrated. Windmill responded VERY quickly thru the chat on Saturday, and continued troubleshooting on Sunday. On Monday they confirmed they were sending out a replacement. Received the replacement, and it had basically the same problem. The offered a very generous gift card for the hassle, and sent out another replacement. Same problem! They then refunded me my ENTIRE purchase price from Best Buy on another gift card. I was still open to this machine as it was reviewed highly and it looks good and they sent out the 3rd replacement - in other words - the FOURTH machine. Same problem! Windmill customer service outdid themselves, but it still was not enough because of the problem with the machines. I can only imagine they are going thru a temporary Quality Control issue, or maybe during transit something shifts which causes the units to make lots of noise and vibrate when pump starts, how else would they get to Wirecutter's review page? But at the end of the day after all these replacements I did not receive a 'quiet' air conditioner from them - since they covered my costs it was not 'painful.' I bought another brand with similar 'quiet rating' in terms of decibels, and it worked great right out of the box.

Very good AC! Super quiet as well. Didnt give us any issues for install

Reviews are accurate. They claim it’s an inverter unit but it’s just as loud as any other ac unit I tried. Also does not cool effectively. The LG dual inverter unit I picked up with the same BTUs cools way faster and is so much quieter. Don’t go with a startup company on this one. It looks pretty but sounds and performed awful

LOVE IT….. Even in a quiet room you can barely hear it running.. The only other thing it comes with a one-year warranty. I hope it survives many years! I cosign for this brand and will purchase this brand from here on out