10 Best Mini Split Ac For Garage 2025 in the United States

The MRCOOL DIY-12-HP-WM-115D25O mini-split AC is a solid choice for cooling and heating a garage or similar space between 350 and 550 square feet. With a cooling power of 12,000 BTUs and a very efficient SEER rating of 23.5, it uses less energy than many traditional units, which can save you money on electricity bills. It also offers heating capability with a decent HSPF rating (10.2), making it useful year-round, especially in chilly garages.

One of its standout features is the ease of installation—it's designed for do-it-yourself setup with a pre-charged refrigerant line that doesn’t require professional tools or training. This can save on installation costs and hassle. The unit runs at about 45 decibels, which is quieter than many air conditioners but might still be noticeable in a very quiet garage.

The MRCOOL unit includes smart features like WiFi control through the SmartHVAC app, compatible with Alexa and Google Assistant, so you can adjust settings remotely from your smartphone. This adds convenience and modern functionality. It is designed primarily for smaller spaces, so if your garage is larger than 550 sq ft, you might need a more powerful AC. Also, while the 45 dB noise level is reasonable, it’s not the quietest option available if noise is a major concern. The 115-volt power requirement is standard for most garages, but worth checking against your circuit capacity. This mini-split AC suits garage owners looking for an energy-efficient, easy-to-install solution with smart controls and both heating and cooling ability. It balances good performance with user-friendly features, though it’s best for modest-sized spaces and might not be the quietest choice.

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.

The MrCool Easy Pro 18k BTU 18.5 SEER Ductless Heat Pump Split System is a solid choice for cooling and heating a garage. With a cooling power of 18,000 BTUs, it can efficiently cover an area of up to 550 square feet, making it suitable for a medium-sized garage. The high SEER rating of 18.5 indicates good energy efficiency, which can help in lowering electricity bills over time.

The included 16-foot pre-charged line set simplifies the installation process, making it a potential DIY project for those who are handy around the house. However, professional installation might still be advisable for those unfamiliar with HVAC systems to ensure optimal performance and safety. The noise level is at 60 dB, which is moderately quiet, but it may still be noticeable in smaller, enclosed spaces.

For convenience, the unit offers smart features like Wi-Fi compatibility, allowing you to control the system remotely via an app, and the Follow Me function, which adjusts the temperature based on the location of the remote control. Additionally, the Sleep mode ensures quieter operation during the night. The heating capability adds versatility, making it a year-round solution for temperature control. The unit is relatively heavy at 130 pounds, which might pose a challenge during installation. The 1-year warranty on the compressor and 2-year parts warranty are decent but not exceptional, so it’s worth considering if longer coverage is important to you. This mini-split system offers strong performance, energy efficiency, and convenient features, making it a worthwhile option for those looking to maintain a comfortable garage environment.