Choosing the right mini split unit for your garage requires careful consideration of size, efficiency, and features to maintain a comfortable environment year-round. Below is a summary table of five top mini split units that excel in garage applications, offering efficient cooling and heating, energy-saving technologies, and user-friendly controls.
Product | BTU Capacity | Energy Efficiency (SEER2) | Heating & Cooling | WiFi Enabled |
---|---|---|---|---|
COSTWAY 12000BTU Mini Split | 12000 BTU | 20 SEER2 | Yes | No |
ROVSUN 11500 BTU WiFi Mini Split | 11500 BTU | 17 SEER2 | Yes | Yes |
hykolity 18000 BTU Mini Split | 18000 BTU | 19 SEER2 | Yes | No |
Manastin 12000BTU Mini Split | 12000 BTU | 19 SEER2 | Yes | No |
MilleLoom 9000 BTU Mini Split | 9000 BTU | 18.5 SEER2 | Yes | Yes |
COSTWAY 12000BTU Mini Split Air Conditioner & Heater

The COSTWAY 12000BTU Mini Split offers efficient cooling and heating with an AHRI Certified 1 ton heat pump compressor. Its innovative inverter technology reduces power consumption by adjusting the frequency output instead of frequent compressor cycling, which extends equipment life.
This unit features five operation modes—auto, cool, dry, heat, and fan—with four fan speeds to adjust to your comfort needs. It also includes sleep and ECO modes, turbo function, and iFEEL technology to provide optimal temperature control throughout the year.
With a convenient remote control, the unit is easy to use from anywhere in the garage or adjoining space. The quiet operation and auto-dimming display on the remote ensure it won’t disturb peaceful rest periods, making it suitable for a variety of garage setups.
ROVSUN 11500 BTU Wifi Enabled Mini Split

The ROVSUN 11500 BTU Mini Split is an all-season climate control solution designed for spaces requiring reliable cooling and heating up to 750 square feet. It boasts a robust heat pump, dehumidifier, and multi-function fan modes.
Featuring 17 SEER2 energy efficiency, this unit saves approximately 25% of energy compared to standard systems. It operates effectively in temperatures ranging from 5°F to 122°F, making it ideal for varied garage climates.
One of its key advantages is WiFi-enabled smart control, allowing you to operate the unit remotely via a mobile app or voice assistants like Alexa and Google Assistant. This adds convenience by adapting to your schedule and preferences from anywhere.
hykolity 18000 BTU Mini Split Air Conditioner & Heater

The hykolity 18000 BTU Mini Split is suited for larger garage spaces up to 1250 square feet, delivering swift temperature control for cooling and heating. It has a powerful 1.5-ton heat pump and a compressor optimized for quick response across a wide temperature range.
It achieves 19 SEER2 efficiency and 8.5 HSPF2 heating performance, with advanced inverter and variable frequency technologies to match output with demand, enhancing energy savings by up to 30%. The unit also features an auto-defrost function to improve longevity.
The product comes with a complete accessory kit for installation, including an indoor fan cage, outdoor condenser, remote controller, line set, and vibration absorbers, helping simplify the installation process.
Manastin 12000BTU Mini Split Air Conditioner & Heater

The Manastin 12000BTU Mini Split incorporates innovative inverter technology along with an efficient 1-ton heat pump, ideal for cooling and heating garages up to 750 square feet.
It uses the eco-friendly R32 refrigerant, which is less harmful to the environment than traditional refrigerants. The unit includes five functional modes: cooling, heating, auto, fan, and dry, plus multiple fan speeds for customizable airflow.
Comfort features include a 24-hour timer, sleep mode for low noise overnight use, eco mode for power saving, and a turbo boost for rapid temperature adjustment, fitting the wide range of garage climate needs.
MilleLoom 9000 BTU Mini Split Air Conditioner & Heater

The MilleLoom 9000 BTU Mini Split offers efficient cooling and heating for smaller garages or auxiliary spaces up to 450 square feet. It operates with an 18.5 SEER2 rating and uses innovative inverter tech to optimize power use by 25%.
This system supports five operational modes and incorporates smart features such as WiFi connectivity compatible with Google for remote control. It also includes advanced defrosting, self-cleaning, and an iFEEL mode for intelligent temperature sensing.
Designed for all-weather performance, it can start at temperatures as low as -4°F and operate reliably up to 140°F. The unit delivers quiet operation and extensive airflow, ensuring thorough and gentle circulation in garage settings.
Buying Guide for Mini Split Units in Garage Spaces
When selecting a mini split unit for a garage, consider the following key factors:
- BTU Capacity: Match the unit’s BTU capacity to your garage size for efficient heating and cooling. Oversized units may cycle on/off frequently, while undersized units won’t maintain temperature effectively.
- Energy Efficiency: Higher SEER2 ratings reduce electricity consumption. Inverter technology is particularly beneficial for garages as it modulates compressor speed for consistent temperature control and energy savings.
- Heating Capability: Garages often require cold weather heating. Models with efficient heat pumps and good HSPF ratings can keep the space comfortable even in low outdoor temperatures.
- Installation Kit Completeness: Units including complete installation kits simplify setup, but professional installation is still recommended for optimal performance and warranty compliance.
- Climate and Weather Tolerance: Consider units designed for wide operating temperature ranges, especially if the garage is uninsulated or subject to extreme weather.
- Smart Features: WiFi-enabled controls and compatibility with voice assistants offer convenience for garage units that might be harder to access frequently.
- Noise Levels: Look for units with quiet operation to avoid disturbance in attached living areas or workspaces.
- Environmental Impact: Choosing models that use eco-friendly refrigerants like R32 helps reduce environmental footprint.
Evaluating these factors will help you find the ideal mini split unit tailored for your garage’s size, usage pattern, and climate needs, ensuring comfortable heating and cooling year-round.