Windmill 6,000 BTU Window Air Conditioner, Cools up to 250 sq ft

Mine’s an attic window install, and it does its job nicely, without much issues and noise. When the attic cools down, the cold air starts tumbling down through the staircase, cooling the lower room. App control is a plus and I can change the settings, turn it on/off and check power consumption. I have tested its operation with an Ecoflow River 2 Pro solar battery / inverter. This a/c unit can work even during a power outage or with solar panels using a proper rated inverter. Forget about temperature accuracy with the Eco mode, which I use when no one is in the room. The filter cleaning reminder feature is a gimmick and there should be a way to disable it. My filter remains clean, but the unit thinks it’s dirty. Need to have an adjustable timing on that. The filter cover is designed in a very accessible manner with magnets and all. The remote is nicely labeled but there is no proper place on the unit to drop it in. I liked the cut-to-size insulation panels, the adjustable sliders that fill until the window ends, and the semi-permanent style installation on a vinyl window. The outside grill is a nice touch and protects the condenser from damage. My only nit is the constant compressor cycling with thermostat engagements. There is no variable compressor in the unit. At this price-point this is a requirement and is a big miss by the company.

Great packaging, loved that it had heavy-duty strap, making it easy to get to window. Installation instructions perfect (great installation video). So easy to install, no bracket needed. It’s quiet, no rattling, just a gentle hum. My old a/c had a louver that vibrated. Windmill has none. The double-sided insulation snaps into place, looks good & keeps out street noise. Love the app. I’ll probably never use the remote. Not a fan of the “eco” mode (I wasn’t with my old a/c either). Low fan on cool keeps room at consistent, comfortable temperature. Highly recommend!

Just what I needed for a hot upstairs bedroom. This took me under 20 minutes to install. I admit I didn’t bother reading the instructions either. So simple. I’ve had it almost 2 months and I love it. Cools a decent size master bedroom and is not loud at all. I’m sleeping great. Best part…I can lay in bed and use my phone app to control the unit. I don’t regret the purchase.

I purchased this unit in 2023 and loved it. It cools my bedroom well and I enjoyed using the app, it looks great and is easy to install. Fast forward 2 years later I start experiencing technical bugs - disconnected from the app, random beeping, modes/temperatures changing on their own. I contacted Windmill support and they recommended a hard reset. After conducting this reset, I haven't been able to get the unit to cool for even 30 seconds before it starts malfunctioning. Windmill support said that the unit's control board malfunctioned, but since I am 1 year past the warranty, they would not provide me with a replacement despite this being a product defect. Don't waste your money. Having to now replace a $350 machine after just 2 years is a huge letdown, and I will be buying a cheap little frigidaire that will likely last 5+ years at a fraction of the price.

I own several Midea U shape 8k btu units. They are truly AC/DC Inverter air conditioners. This 6K BTU; Windmill unit isn’t an inverter type AC. The fan speed rpm’s, do ramp up and down at a fixed rate, not truly variable. The compressor is NOT variable speed, it is on and off. Aesthetically, the unit looks great. The noise level is definitely louder than a full inverter type ac. I purchased this windmill unit for my kitchen window. Aesthetically it looks great, exactly what I wanted. It does keep the 150 square-foot area comfortable, just a bit noisy. The directed airflow output being on top instead of in front was also another key reason I bought this unit. Overall, it’s a decent unit and does exactly what I need for this space. Has a great look, distributes the air overhead evenly, with no visible vents. Aesthetics is definitely this units strength. Cons: A little noisy and NOT AC/DC inverter technology type ac. Would I buy this unit again? For this particular application, No! GET THE 8k! It’s true inverter technology. Next year, I’ll be replacing this unit with an 8k. I’ll give Windmill another try with a full blown smart inverter technology unit.