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

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Our Top Picks

#1

Winner

TOSOT 24,000 BTU Mini Split Air Conditioner, Wifi Enabled Ductless Inverter Split System AC Unit Heating System, Compatible with Alexa - 22 SEER2 230V

Rating
10.0
Chosen by1,317
Installation Type
Noise Level
Smart Features

Most important from
106 reviews

Installation Type
Installation is quite straightforward, especially with guidance from YouTube tutorials, making it accessible even for DIY enthusiasts.
Noise Level
The system operates very quietly, both indoors and outdoors, which is a significant advantage for maintaining a peaceful environment.
Smart Features
The WiFi and app functionality are convenient alternatives to the remote control, although some users had issues connecting to Alexa.

The TOSOT 24,000 BTU Mini Split Air Conditioner is a robust option for cooling and heating a garage space. With a high BTU rating of 24,000, it provides substantial power to maintain comfort in larger areas. The SEER2 rating of above 20 ensures excellent energy efficiency, translating to lower energy costs over time, which is a significant advantage for those looking to save on utility bills. The 230V unit is designed for ductless installation, which simplifies the setup process and makes it suitable for spaces without existing ductwork. Additionally, its noiseless operation, ranging from 24dB to 34dB, ensures that it won’t be disruptive, even when running continuously, making it conducive to a quiet working environment in the garage.

The TOSOT unit is also equipped with smart features, including WiFi capability and compatibility with Alexa and Google Assistant, allowing for remote control and voice commands for added convenience. The advanced compressor technology enables it to perform well in extreme temperatures, providing reliable heating down to -13°F and cooling up to 122°F, which covers a broad range of environmental conditions. However, the unit's relatively high upfront cost and substantial weight (123.2 pounds) may be a concern for some users. Additionally, while it’s marketed as energy-efficient, it does not have an Energy Star certification. The enhanced packaging ensures safe delivery, but it's worth noting that the product is manufactured in China, which might be a consideration for those looking for locally made products.

In summary, the TOSOT 24,000 BTU Mini Split Air Conditioner is a feature-rich, powerful, and efficient option, especially suitable for garages needing dependable heating and cooling solutions.

Rating
10.0
Chosen by1,317
Installation Type
Noise Level
Smart Features

Most important from
106 reviews

Installation Type
Installation is quite straightforward, especially with guidance from YouTube tutorials, making it accessible even for DIY enthusiasts.
Noise Level
The system operates very quietly, both indoors and outdoors, which is a significant advantage for maintaining a peaceful environment.
Smart Features
The WiFi and app functionality are convenient alternatives to the remote control, although some users had issues connecting to Alexa.
#2

Senville SENA-30HF/T Tri Zone Mini Split Air Conditioner Heat Pump, 28000 BTU, Works with Alexa, White

Rating
8.5
BTU Capacity
Installation Type
Noise Level

Most important from
346 reviews

BTU Capacity
The 28,000 BTU unit delivers powerful cooling during hot summers and effective heating in winter, making it reliable year-round even in colder climates.
Installation Type
Installation is a serious DIY project requiring patience, specialized tools, and some HVAC knowledge to navigate missing manual details and complex valve setups.
Noise Level
The system runs super efficiently and quietly, providing comfortable temperature control that’s especially useful for managing different zones.
Heating Capability
The 28,000 BTU unit delivers powerful cooling during hot summers and effective heating in winter, making it reliable year-round even in colder climates.
Smart Features
The unit's WiFi compatibility allows seamless integration with smart home systems, enabling convenient remote temperature adjustments.

The Senville SENA-30HF/T is a powerful mini-split system with a 28,000 BTU (2.3 tons) capacity, making it well-suited for larger garage spaces up to around 1500 square feet. Its high SEER rating of 23 means it operates efficiently, helping keep energy bills lower while providing strong cooling and heating all year round. Since it’s a split system, professional installation is required, which is common for units of this type but adds to the initial setup effort and cost.

One notable feature is the very quiet operation at just 25 decibels, so it won’t be disruptive while you’re working in the garage. The heating function makes it versatile for colder months, extending use beyond just summer cooling. Smart features like Alexa compatibility allow for easy temperature control via voice or app, adding convenience especially if you want to adjust settings remotely. It also supports multiple indoor units for separate rooms, although for garage use, generally only one unit would be needed.

The unit carries a strong warranty—10 years on the compressor and 5 years on parts—providing peace of mind regarding reliability. Some users might find professional installation a hurdle, and since it’s designed to serve multiple rooms, it could be more than what a simple single-zone garage setup requires. If you want an energy-efficient, quiet, and smart system that handles both heating and cooling well, this Senville mini-split is a solid choice.

Rating
8.5
BTU Capacity
Installation Type
Noise Level

Most important from
346 reviews

BTU Capacity
The 28,000 BTU unit delivers powerful cooling during hot summers and effective heating in winter, making it reliable year-round even in colder climates.
Installation Type
Installation is a serious DIY project requiring patience, specialized tools, and some HVAC knowledge to navigate missing manual details and complex valve setups.
Noise Level
The system runs super efficiently and quietly, providing comfortable temperature control that’s especially useful for managing different zones.
Heating Capability
The 28,000 BTU unit delivers powerful cooling during hot summers and effective heating in winter, making it reliable year-round even in colder climates.
Smart Features
The unit's WiFi compatibility allows seamless integration with smart home systems, enabling convenient remote temperature adjustments.
#3

MRCOOL 18000 BTU 230V Ductless Inverter Mini Split Air Conditioner & Heat Pump System, Easy Pro Series - Wall-Mounted AC Unit w/Heating and Cooling for Home, Office & Commercial Space

Rating
8.5
SEER (Seasonal Energy Efficiency Ratio)
Installation Type
Noise Level

Most important from
317 reviews

SEER (Seasonal Energy Efficiency Ratio)
The unit's efficiency has notably reduced electricity bills compared to previous years.
Installation Type
Pretty easy for a knowledgeable DIY person to install, but having a helper for the heavy lifting is recommended.
Noise Level
The condenser is so quiet that it can't be heard running, even when placed close to the bedroom.
Heating Capability
Heats like a dream and offers fantastic value, making it a great choice for various rooms and applications.
Smart Features
The MrCool app works well, though it could benefit from an auto-off feature for the LED at night.

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.

Rating
8.5
SEER (Seasonal Energy Efficiency Ratio)
Installation Type
Noise Level

Most important from
317 reviews

SEER (Seasonal Energy Efficiency Ratio)
The unit's efficiency has notably reduced electricity bills compared to previous years.
Installation Type
Pretty easy for a knowledgeable DIY person to install, but having a helper for the heavy lifting is recommended.
Noise Level
The condenser is so quiet that it can't be heard running, even when placed close to the bedroom.
Heating Capability
Heats like a dream and offers fantastic value, making it a great choice for various rooms and applications.
Smart Features
The MrCool app works well, though it could benefit from an auto-off feature for the LED at night.

Buying Guide for the Best Mini Split Ac For Garage

Choosing the right mini-split air conditioner for your garage involves understanding your specific needs and the key specifications of the units available. A mini-split AC is a great option for cooling or heating a garage because it is efficient, easy to install, and doesn't require ductwork. To make an informed decision, you need to consider several important factors that will ensure the unit you choose is the best fit for your space and usage requirements.
BTU CapacityBTU (British Thermal Unit) capacity measures the cooling or heating power of the mini-split AC. This is important because it determines how effectively the unit can regulate the temperature in your garage. To navigate this spec, consider the size of your garage: smaller garages (up to 300 sq. ft.) typically need around 9,000 BTUs, medium garages (300-500 sq. ft.) may require 12,000-18,000 BTUs, and larger garages (over 500 sq. ft.) might need 24,000 BTUs or more. Choose a BTU capacity that matches the size of your garage to ensure efficient temperature control.
SEER RatingThe SEER (Seasonal Energy Efficiency Ratio) rating indicates the energy efficiency of the mini-split AC. A higher SEER rating means better energy efficiency, which can lead to lower electricity bills. SEER ratings typically range from 13 to 25. For occasional use or mild climates, a SEER rating of 13-16 may be sufficient. For frequent use or hotter climates, consider a SEER rating of 17 or higher. Choose a SEER rating based on how often you plan to use the AC and the typical climate in your area.
Installation TypeMini-split ACs can be installed in various ways, including wall-mounted, ceiling cassette, floor-mounted, or ducted. The installation type affects both the aesthetics and the efficiency of the unit. Wall-mounted units are the most common and easiest to install, making them a good choice for most garages. Ceiling cassettes are less obtrusive but require more complex installation. Floor-mounted units are ideal if wall space is limited. Choose an installation type that fits your garage layout and your preference for visibility and space usage.
Noise LevelThe noise level of a mini-split AC is measured in decibels (dB) and affects the comfort of using the space. Lower noise levels are preferable, especially if you plan to spend a lot of time in the garage. Noise levels typically range from 19 dB (very quiet) to 60 dB (moderate noise). For a quiet working environment, look for units with noise levels below 30 dB. If noise is not a major concern, units with noise levels up to 50 dB may be acceptable. Choose a noise level that matches your tolerance for sound and the intended use of the garage.
Heating CapabilitySome mini-split AC units also offer heating capabilities, which can be useful if you plan to use your garage year-round. This feature is important if you live in an area with cold winters. Heating capabilities are often measured in BTUs, similar to cooling capacity. Ensure the unit's heating capacity is sufficient for the size of your garage. If you need both cooling and heating, look for a unit that offers both functions and has a suitable BTU rating for heating as well.
Smart FeaturesSmart features in mini-split ACs include Wi-Fi connectivity, remote control via smartphone apps, programmable timers, and compatibility with smart home systems. These features can enhance convenience and energy efficiency. If you value the ability to control your AC remotely or integrate it with other smart devices, look for units with these capabilities. Choose smart features based on your preference for technology and how much control you want over your garage's climate.

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