10 Best Mini Split For Garage 2025 in the United States

The DELL Versa Series 18000 BTU Mini Split AC is a solid choice for those looking to cool or heat a garage space of up to 1000 square feet. With an impressive SEER rating of 19, it stands out as an energy-efficient option, potentially saving you power costs while maintaining a comfortable environment. Its heating capability is commendable, functioning effectively down to -4°F, which is ideal for colder climates.

One of its notable strengths is the silent operation at just 50 dBa, making it a great addition to a garage where noise might be a concern. The inclusion of smart features such as WiFi connectivity and compatibility with Alexa makes it user-friendly and convenient, allowing for remote adjustments.

Installation is a crucial aspect to consider. It requires professional installation, which may add to the initial cost and complicate setup for those hoping for a DIY project. Additionally, the system mandates proper line-set vacuuming and adjustments to freon levels if modifications are made, which can be a hassle. The DELL Versa Series mini-split AC is a powerful, efficient, and quiet system, well-suited for garage use. It offers great features and coverage but comes with the caveat of requiring professional installation, which could be a drawback for some users.

The COSTWAY 18000 BTU mini-split is a solid choice if you're looking to heat and cool a garage up to about 1250 square feet. Its cooling and heating power, supported by a 1.5-ton heat pump, makes it suitable for year-round comfort, whether you need warmth in winter or cooling in summer. With a SEER rating of 19, it is energy efficient, which means it can save you money on electricity over time compared to less efficient models. The inverter technology helps by running the compressor smoothly instead of turning it on and off frequently, extending the unit’s life and improving efficiency.

The unit offers several modes, including auto, cool, dry, heat, and fan, plus extra features like sleep and eco modes, so you can customize air flow and temperature to your liking. It also has a remote control for convenience and a quiet operation at 56 decibels, which is about the noise level of a normal conversation—not completely silent but generally unobtrusive.

On the maintenance side, the self-cleaning function and washable filter simplify upkeep, and the R-32 refrigerant used is better for the environment compared to older refrigerants. Installation needs to be handled by a licensed HVAC professional, which means added cost and effort upfront. Additionally, while 56 dB is fairly quiet, if your garage is used as a workspace requiring near silence, you might notice the sound. The product includes good warranty coverage (5 years on parts and 8 years on the compressor), providing peace of mind. If you want an energy-efficient mini-split that covers heating and cooling with useful features and manageable noise, this unit fits well, though professional installation and moderate noise should be expected.

The Della Vario 12000 BTU mini split is a solid choice for heating and cooling a medium-sized garage up to about 550 square feet. With a cooling power of 12000 BTU and an efficient 19 SEER2 rating, it offers good energy savings compared to many traditional systems. The heat pump has an 8.5 HSPF rating, providing reliable heating even in temperatures as low as -4°F, making it suitable for colder climates.

A key feature is the smart sensor in the remote, which adjusts airflow and temperature based on occupant location, enhancing personal comfort and energy efficiency. Noise levels are kept low at 41 dBa, ensuring the unit operates quietly. Installation requires professional assistance and involves technical steps such as line-set vacuuming and refrigerant adjustments. The unit includes a 16.4-foot installation kit to cover typical installation needs.

Additional smart modes like auto defrost, sleep, timer, and energy-saving settings add convenience. While it effectively covers average garage sizes, larger spaces may require a more powerful unit. This model is suitable for those seeking a quiet, efficient mini split that provides both heating and cooling in a garage environment.