10 Best Mini Split Ac For Garage 2026 in the United States

The MRCOOL Easy Pro 12K BTU mini split is a solid choice for cooling or heating a garage or small space up to about 550 square feet. It offers 12,000 BTUs, providing adequate power for typical garage sizes. With a SEER rating of 19.5, it delivers notable energy efficiency, helping reduce electricity costs while maintaining a comfortable environment.

Installation is designed to be DIY-friendly and includes a 16-foot lineset, which can reduce the need for professional installation if basic setup tasks are manageable. The unit operates at a reasonably low noise level of 43 decibels, ensuring it won't be overly loud or distracting during use. Its heating and cooling functions make it suitable for year-round use.

Additional features include a timer mode, refrigerant leak detection, and Active Clean Technology that helps maintain air quality and simplifies filter cleaning. It carries a 2-star BEE energy rating, which is moderate compared to higher-rated models. This mini split is well-suited for garage owners seeking a reliable, energy-efficient unit with heating capability, smart features, and quiet operation, especially those comfortable with handling installation.

The MRCOOL DIY 5th Gen mini-split is a solid choice for cooling and heating a garage space up to about 350 square feet. Its 9,000 BTU capacity is well-suited for smaller areas like garages, offering efficient climate control without using excessive power. The unit’s high SEER rating of 23.6 means it runs efficiently, helping keep energy bills lower. Installation is one of its biggest strengths—designed for DIY with pre-charged line sets and no need for special tools, making it manageable even if you’re not an expert.

It runs quietly at around 45 dB, so it won’t add much noise to your workspace. The combined heating and cooling feature means it’s useful year-round, which is great if your garage isn’t insulated well or gets cold in winter. On the smart features side, it includes WiFi control compatible with Google Assistant and Alexa, allowing easy remote adjustments. However, the unit’s 115V power might limit its ability to cool larger or poorly insulated garages effectively. Also, while the noise level is low, some users might notice it if absolute silence is a priority.

The included 25-foot install kit is convenient but may require extra parts if your garage layout is unusual or larger than average. With a 5-year parts and 7-year compressor warranty, it offers good reliability. This mini-split is a handy, energy-efficient option for typical garage spaces, especially for those comfortable with a simple DIY installation and wanting smart control features.

The MRCOOL DIY 24K BTU 4th Gen Mini-Split Air Conditioner is a solid choice for garage cooling and heating needs. With a powerful 24,000 BTU capacity, it can efficiently manage temperatures in spaces up to 1,000 square feet. The impressive 20.5 SEER rating ensures energy efficiency, which is further validated by its Energy Star certification. This means it will help keep energy bills lower while maintaining high performance.

Additionally, the unit operates at a relatively quiet 33 dB, ensuring minimal noise disruption, which is ideal for a garage setting where noise can be a concern. The heating capability with a 10.5 HSPF is a nice bonus, allowing for year-round climate control even in colder months. One of the standout features is its DIY installation, as it comes with pre-charged R-410 quick-connect lines, meaning it's user-friendly and doesn't require professional installation.

Smart features are also a major plus, with the ability to control the unit remotely via an app on your smartphone, providing convenience and enhanced control. However, the unit is quite large and heavy, which might pose installation challenges for some users. Furthermore, although the unit is designed to be a DIY install, those unfamiliar with such installations might still find it somewhat daunting. Despite these minor drawbacks, the MRCOOL DIY 24K BTU 4th Gen Mini-Split Air Conditioner is an efficient, powerful, and smart choice for anyone looking to manage their garage's climate effectively.