10 Best Mini Split Ac For Garage 2025 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 Senville LETO Series Mini Split Air Conditioner Heat Pump offers a solid solution for those looking to regulate temperature in a garage or similar space. With a BTU capacity of 9,000, it's well-suited for areas up to 400 square feet, making it appropriate for most standard-sized garages. The SEER rating of 21.5 indicates high energy efficiency, which can help reduce electricity bills over time, though it's worth noting that it's not Energy Star compliant. This model is notable for its versatility, offering not just air conditioning but also heating, dehumidifying, and fan functions, with the heat pump being effective down to 5°F (-15°C).

One of its standout features is the integration with Alexa, allowing for convenient voice control and smart home compatibility, which adds a layer of modernity and ease of use. The noise level is very low at 25 dB, ensuring minimal disruption whether you're working or relaxing in the garage.

The installation package is comprehensive, including both indoor and outdoor units, a 16 ft. line set, and a communication wire, though professional installation is required, which could add to the initial cost. While it does come with a robust 5-year warranty on parts and compressor, labor costs are not covered. Its stylish design won't detract from the aesthetics of your space, and it should fit well in both residential and commercial settings. However, if you're keen on a DIY solution, this isn't the unit for you, as professional setup is necessary. The product is backed by a high number of positive customer reviews, suggesting satisfaction with performance and build quality.

The MrCool DIY 36k BTU 18 SEER2 Mini Split AC & Heat Pump is a powerful option for cooling and heating spaces like garages, with a strong 36,000 BTU capacity suitable for larger rooms up to around 1,500 square feet. Its high SEER rating of 23.6 means it runs efficiently, helping to save on electricity bills compared to less efficient models. The unit is designed for wall-mount installation and comes with a full DIY kit, which includes indoor and outdoor units and installation parts, making it a good choice for those comfortable with basic home installation tasks.

Noise level is moderate at 43 dB, roughly equivalent to a quiet conversation, so it won’t be overly disruptive in a garage or workshop setting. The heat pump feature ensures the unit can provide warmth during colder months, adding year-round comfort. The one-year labor warranty offers some peace of mind but is relatively short compared to other brands.

This unit balances strong cooling and heating power with energy efficiency, making it a solid fit for garage environments where a reliable, moderately quiet climate control solution is needed, especially if you prefer a DIY installation approach.