The Windmill Smart Window Air Conditioner Is Designed to Look as Cool as It Feels

The right time to buy a window air conditioner is before it gets too hot, before demand gets high, supplies run low, and ideally before temperatures hit three-digit numbers. The options are innumerable, but only a few we would categorize as aesthetic options; Most window air conditioners are a necessary eyesore. Fortunately, manufacturers like Windmill Air are developing a new generation of devices with cooling performance paired with a cooler modern design for the home.

Recently my wife complained about feeling lethargic, apparently some kind of task that required a great deal of concentration. I noticed the hot temperature in their small home office and immediately recommended turning on the window air conditioner nearby. Within 15 minutes, she was back to work, productive, and comfortable – a transformation that suggests the effects of heat on our bodies (even for a Texan like her, who says she prefers hot and humid temperatures). And without central air, a window unit like the Windmill AC can make the difference between getting things done and getting things done for the day.

An effective window air conditioner should not only bring cool relief, but should also be quiet, efficient and ideally not cover up or downright ruin the look of your window. In all of these respects, Windmill’s 8,300 BTU room cooling capacities are just right for a home office, bedroom, or any room up to 350 square feet (a smaller 6,000 BTU unit is planned for next year). It also has some outstanding features that are different from other standard window air conditioners.

First and foremost is the design, a minimalist and matte housing with rounded corners and a perforated front grille. The device is designed so that once installed it protrudes only a modest amount into the room, with about two-thirds of the device hanging outside.

Since this is a window AC, it weighs a whopping 60 lbs, a weight heavy enough to warrant the help of a pair of second hands with the installation. Windmill’s decision to have a flat interior trim is particularly impressive as the balanced weight distribution can make installation difficult. The device’s dimensions – 13.2 x 19.3 x 19.4 inches – turned out to be manageable for one person to lift and hold, but a second person makes it really easier to position, including installing and expanding the included set of cosmetic foam sheets for the sides of the device to protect against heat and insects from unwanted entry.

The front will turn on to display an LED indicator showing the current mode, indoor temperatures, set temperatures and WiFi status. Since many window air conditioners are installed in bedrooms, Windmill has deliberately programmed their LED so that it switches off automatically after 60 seconds.

The intelligent functions of the Windmill AC also distinguish the model from a typical window unit. iOS and Android apps offer the ability to set and regulate the air conditioning via a phone (a remote control is also included, conveniently held near the bed or desk). The compatible app enables the adjustment of four fan levels, three cooling modes (Cool, Eco and Fan) and a welcome planning function. One omission that we hope a future iteration or update might provide is the ability to track cooling in terms of energy usage, which this household would surely appreciate in a blackout and blackout affected region.

Unsurprisingly, being a smart home device, the Windmill AC also includes voice command controls from Amazon Alexa and Google Assistant (but surprisingly, Apple HomeKit support has been left out) so you can literally scream for instant relief.

The majority of the Windmill AC is designed to face outwards in order to direct heat and noise further away from the interior while reducing the presence inside. Also included: an antimicrobial protected and washable sieve and an activated carbon plate.

And finally, compared to our existing window unit on the ground floor – the intelligent room air conditioner Frigidaire Cool Connect 8000 BTU – the Windmill AC works quieter and is reminiscent of numerous models of the past, an attribute that Windmill attributes to a dampened housing design that silences the compressor steady white noise on exhalation. In summary, the device offers one of the most modern, smarter, and quieter window air conditioners we tested for $ 395 – a literally cool upgrade for working from home summer through fall.

To learn more about the Windmill Smart Window Air Conditioner, visit

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