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

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.

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.

The Senville 36000 BTU Dual Zone Mini Split Air Conditioner Heat Pump is a strong option if you need to cool and heat a large space, like a garage up to around 2000 square feet. With a 3-ton capacity and a high SEER rating of 22, it promises energy-efficient performance that helps keep electricity costs lower. It operates quietly at just 24 decibels, which is great for a garage where noise can be disruptive. This system stands out because it offers dual zone control, meaning you can independently set temperatures in two different areas—ideal if your garage has separate zones or adjoining rooms.

Heating is also included, and it works well even in very cold temperatures down to -22°F, which is useful if you want to use it year-round. The unit is Alexa-compatible, allowing remote temperature control through voice commands or an app, adding convenience and the ability to save energy when you're away. Installation is split-type and professional setup is required, so it’s not a DIY-friendly model. One thing to consider is its size and weight, which might require planning for space and support.

This mini split is well suited for owners looking for a powerful, versatile, and smart heating and cooling solution for a large garage or similar workspace, though it is a bigger commitment in terms of installation and upfront cost.