The Windmill Modern Air Conditioner is praised for its ease of installation with a pre-assembled kit and quiet performance starting at 42dB. Reviewers highlighted its app and voice control capabilities, dual filtration system, and double-insulating side panels that improve energy efficiency. YouTube users noted it runs silently and installs similarly to other window units, though professional help may be needed for storm windows. The unit comes with a one-year limited warranty, which some users may find insufficient.
Full review
Design and Aesthetic Appeal
The Windmill AC stands out visually among window air conditioners, with reviewers consistently praising its sleek, minimalist styling that has earned it comparisons to the iPhone. Good Housekeeping's Dan DiClerico noted that the unit's Apple-inspired design includes rounded edges and metal-mesh detailing, making it more akin to modern home decor than the typical industrial-looking appliance. The unit's magnetic mesh-front panel comes in standard white or pastel hues, and cosmetic panels with integrated end caps conceal the accordion-style side panels for a cleaner look. RTINGS confirmed the unit's aesthetic appeal, ranking it among the best-looking window ACs, with the design being one of its strongest selling points.
The Windmill's unique feature is moving both the air outlet and control panel to the top of the unit, which creates a less cluttered appearance compared to traditional models. This design choice also contributes to its quieter operation, as the inverter technology reduces noise by sending power in controlled increments rather than running the compressor continuously. The LED display automatically dims after a few seconds, which adds to the unit's understated elegance. However, some reviewers noted that while the design is attractive, it may not suit all interior aesthetics, particularly in more traditional or rustic settings where a classic AC appearance might be preferred.
Installation and Setup Process
Windmill's installation process is designed to be straightforward, with pre-assembled installation kits included in the package. The company claims the unit can be installed in about 15 minutes, and several reviewers confirmed this timeframe, with one reviewer noting that the instructions were clear and the process was manageable. However, the installation requires careful attention to window dimensions, as the unit works best in double-hung windows between 23-37 inches wide with a vertical opening of at least 14 inches. The installation kit includes scissors, adhesive and non-adhesive window insulation foam, screws, window sash lock, and rubber screw hole plugs, which helps minimize the need for additional tools.
Despite the company's efforts to simplify installation, some users reported challenges, particularly in high-rise apartments where safety concerns arise. One reviewer mentioned they were hesitant to install it themselves due to the height and weight of the unit, ultimately hiring a professional. The company's partnership with TaskRabbit for professional installation services is a valuable offering, though it comes at an additional cost of $99. Some reviewers noted that while the instructions are user-friendly, the physical installation still requires careful handling and proper window support, especially for those with limited experience or physical limitations.
Performance and Cooling Efficiency
In terms of cooling performance, the Windmill AC delivers strong results, with reviewers noting its ability to cool rooms quickly and efficiently. Good Housekeeping's testing showed that the unit cooled accurately and quickly, with one tester commenting that it circulates air perfectly, maintaining consistent temperatures throughout the room. The unit's 45-degree airflow angle is a key feature, as it prevents the cold air from blowing directly at people or blowing papers around, which is a common complaint with traditional AC units. The dual-filtration system, including antimicrobial-protected mesh and activated carbon filters, contributes to better air quality, which reviewers appreciated, especially for those with allergies or respiratory issues.
The inverter technology used in the Windmill AC not only reduces noise but also improves temperature control and energy efficiency. According to RTINGS, the unit's inverter technology provides better temperature regulation and energy efficiency compared to standard compressors. The unit's CEER rating of up to 15.0 indicates good energy efficiency, and reviewers noted that it responds quickly to temperature changes, unlike some traditional units that take days to adjust. However, some reviewers pointed out that while the unit performs well for its size, it may not be sufficient for larger rooms, with the largest model recommended for spaces up to 600 square feet.
Smart Features and Connectivity
The Windmill AC's smart features are a standout element, with the company offering app and voice control capabilities that allow users to control the unit from anywhere. The smartphone app enables users to set their home climate from anywhere, and the unit is compatible with both Alexa and Google Assistant for voice control. This connectivity is particularly useful for those who want to pre-cool their homes before arriving, which reviewers noted as a convenient feature. The app also provides notifications when it's time to clean or replace filters, with the display changing from white to red to indicate when maintenance is needed.
However, some reviewers noted that while the smart features are convenient, they may not be essential for all users. The app functionality was generally well-received, but one reviewer mentioned that the unit's lack of airflow control options was a limitation. The company's focus on smart features aligns with its marketing as the 'iPhone of air conditioners,' but some users may find the smart capabilities overly complex or unnecessary for basic cooling needs. The integration with smart home ecosystems is a strong point, though it does require a smartphone and internet connectivity to fully utilize.
Noise and Energy Efficiency
Noise levels are a significant strength of the Windmill AC, with reviewers consistently noting its quiet operation. Good Housekeeping's testing confirmed that it's one of the quietest ACs tested, with the inverter technology being a key factor in reducing noise. The unit starts at 42dB, which is relatively quiet compared to traditional AC units that often exceed 50dB. The auto-dimming LED display also helps reduce ambient light disturbance, which is particularly beneficial for bedroom use. RTINGS measured the unit's noise levels and found it to be significantly quieter than standard models, especially during operation.
Energy efficiency is another area where the Windmill AC excels, with a CEER rating of up to 15.0, which meets or exceeds Energy Star requirements. The dual insulation system, which is twice the Energy Star requirement, contributes to both energy efficiency and reduced outside noise. The inverter technology not only improves temperature control but also reduces energy consumption, which can lead to lower electricity bills. However, some reviewers noted that while the unit is energy efficient, it may not be the most cost-effective option for those on a tight budget, as the premium price point reflects the advanced features and design.
Where It Falls Short
Despite its many strengths, the Windmill AC has several notable drawbacks that reviewers have pointed out. One major limitation is its size and room capacity, with the largest model only recommended for spaces up to 600 square feet. This makes it unsuitable for larger rooms or commercial spaces, which is a significant limitation for some users. Additionally, the unit's lack of airflow control options was criticized by some reviewers who felt it would be beneficial to have more granular control over air direction and speed. The company's focus on aesthetics and smart features comes at a premium price, with some reviewers noting that the unit is significantly more expensive than comparable traditional AC units.
Another concern raised by reviewers is the unit's limited suitability for certain window types. The installation process requires specific window dimensions, and users with storm windows or non-standard window configurations may face challenges. Some reviewers also noted that while the unit is easy to install, it still requires careful handling and proper window support, which can be problematic for those with limited physical ability or experience. Additionally, the unit's reliance on the app for filter maintenance reminders may not be ideal for users who prefer manual control or have limited smartphone access.
Who It's Best For
The Windmill AC is ideal for shoppers who prioritize aesthetics and smart home integration over raw cooling power. It's particularly well-suited for urban dwellers, particularly those in high-rise apartments, who want a sleek, modern unit that fits seamlessly into contemporary home decor. Good Housekeeping's testing showed that the unit is excellent for small to medium-sized rooms, making it perfect for bedrooms, home offices, or small living spaces. The smart features, including app and voice control, make it a strong choice for tech-savvy users who want to integrate their cooling with other smart home devices.
The unit is also well-suited for users who value quiet operation, especially for bedroom use, where the auto-dimming LED display and inverter technology provide a peaceful environment. The dual filtration system is particularly beneficial for those with allergies or respiratory issues, as it provides cleaner air circulation. However, it's not ideal for users who need to cool large spaces or those who prefer traditional AC units with more airflow control options. The unit's price point, while premium, is justified for those who value design, smart features, and energy efficiency over basic cooling performance.
Value at This Price
The Windmill AC's pricing reflects its premium features and design, with the 8K BTU model starting at $369 (or $339 with discount). This is significantly higher than comparable traditional AC units, with some reviewers noting that the Frigidaire 8,000-BTU model sells for about half as much. However, the company's value proposition centers on its unique design, smart features, and energy efficiency, which justify the premium for many users. The inclusion of a pre-assembled installation kit, dual filters, and the company's eco-rewards program with carbon offsets adds to the perceived value. RTINGS noted that while the unit is expensive, it offers good value for those who prioritize aesthetics and smart home integration.
The company's carbon filter subscription service, which costs $11.31 per filter with a 25% savings, provides ongoing value for users who want to maintain air quality without the hassle of manual replacement. The inclusion of a winter cover and the option to purchase a companion air purifier or fan also adds to the overall value proposition. However, some reviewers noted that the premium price may not be worth it for users who only need basic cooling functionality, particularly those on a tight budget. The unit's performance and features are strong, but the price point requires careful consideration based on individual needs and priorities.
Strengths
- +Easy-to-install with pre-built installation kit
- +Quiet operation starting at 42dB
- +App and voice control functionality
- +Double-insulating side panels for energy efficiency
- +Dual filtration system with antimicrobial mesh and activated carbon filters
Watch-outs
- −Requires professional installation for storm windows
- −Limited warranty coverage (one-year only)
How it compares
The Windmill Modern Air Conditioner distinguishes itself with app and voice control functionality, which the Electactic units lack. While it's quieter than the Electactic models and comparable to the Midea U in terms of noise level, it requires professional installation for storm windows and offers only a one-year warranty, unlike the Midea U which has a more comprehensive warranty and smart features.
Who this is for
At a glance: tech-savvy users wanting smart control.
Why you’d buy the Windmill Modern Air Conditioner
- Easy-to-install with pre-built installation kit.
- Quiet operation starting at 42dB.
- App and voice control functionality.
Why you’d skip it
- Requires professional installation for storm windows.
- Limited warranty coverage (one-year only).
Rating sources
“Based on our extensive testing, I can confirm that the Windmill is not only one of the most stylish window air conditioners on the market, but also one of the best performers.”
“Installation Is A Breeze. I'll insert some of her words in italics –– I'm sure you'll see the relation.”
“Yes, the average consumer will love the fun AC unit Air Lab Inc has created.”
Our 4.4 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
