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10 Best Smallest Mini Split Air Conditioner 2025 in the United States

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Our Top Picks

#1

Winner

Senville LETO Series Mini Split Air Conditioner Heat Pump, 18000 BTU 208/230V, Inverter, Works with Alexa, SEER2 19, 1.5 Ton, White

The Senville LETO Series Mini Split Air Conditioner is a solid choice for anyone looking for an efficient cooling and heating solution for medium to large spaces, covering up to 1,000 square feet. With a cooling power of 18,000 BTU and a high SEER rating of 19, this mini-split is energy-efficient, which can help save on utility bills over time. Its noise level is impressively low at 30 dB, making it suitable for bedrooms or quiet environments. The 4-in-1 functionality allows it to not only cool but also heat, dehumidify, and circulate air, adding versatility to its use throughout the year.

A big plus is the smart features, including Alexa compatibility, which means you can control the unit via voice commands or an app, adding convenience to your daily life. The stylish design allows it to blend in well with home or business settings without looking out of place.

However, there are some considerations to keep in mind. The unit requires professional installation, which could add to the overall cost if you don’t have someone on hand. While the warranty covers parts and compressor for five years, labor isn’t included, which might lead to additional expenses if repairs are needed. Another point to note is that it’s not Energy Star compliant, which may be a drawback for those specifically seeking high efficiency credentials.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Noise Level
The air conditioner is impressively quiet, both indoors and outdoors, making it ideal for home offices and bedrooms.
Installation Flexibility
Installing the unit can be complex and may require professional assistance, especially for tasks like wiring and pressure testing.
Smart Features
Alexa compatibility adds convenience, enabling voice control and integration with other smart home devices.
#2

YITAHOME 12000 BTU Mini Split Air Conditioner Heat Pump System, Wifi Enabled 20 SEER2 115V Ductless AC Cool Up to 750 Sq. Ft, Compatible with Alexa, Complete Installation Kit, White

The YITAHOME 12000 BTU Mini Split Air Conditioner Heat Pump System stands out with its impressive energy efficiency, boasting a 20 SEER2 rating, which indicates it performs well in terms of energy savings. Its 12000 BTU cooling capacity makes it suitable for spaces up to 750 square feet, providing effective cooling and heating for various room sizes including bedrooms, living rooms, and garages. The system is also WiFi-enabled and Alexa-compatible, offering convenient smart features that allow for easy remote control and integration with home automation systems.

The noise level is low, operating at below 41 decibels, which ensures a quiet environment, making it ideal for use in areas where silence is preferred, like bedrooms and offices. Additionally, it includes five operational modes and a range of advanced features like automatic defrosting, self-diagnosis, and air purification, enhancing its functionality and user experience. However, professional installation is required, which might add to the cost and complexity for some users.

The unit performs well in both extreme cold and hot temperatures, making it versatile for different climates. Its compact form factor and comprehensive installation kit add to its appeal, though the requirement for professional installation could be seen as a drawback for those seeking a DIY solution. Despite potential logistical issues with multiple packages, this mini split system is efficient, quiet, and packed with smart features, making it a strong contender in the mini split air conditioner category.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Installation Flexibility
Most people can successfully install this unit with the right equipment. The unit comes precharged with freon, but you'll need a vacuum pump and gauge set to create negative pressure before releasing the freon.
Smart Features
Great unit for off-grid living, especially with solar power. In eco mode, it draws less than 300 watts and effectively cools the space.
#3

DELLA Versa Series 12000 BTU Mini Split Air Conditioner Work with Alexa with 1 Ton Pre-Charged Heat Pump Ductless Inverter System, 19 SEER2, Cools Up to 550 Sq. Ft,16.4ft installation kit included

The Della Versa Series 12000 BTU Mini Split Air Conditioner is designed to efficiently cool and heat spaces up to 750 square feet, making it a solid choice for medium-sized rooms. With a high SEER of 19, it excels in energy efficiency, which can lead to lower energy bills over time. Its heating capability is impressive as it can operate in temperatures as low as -4℉, making it suitable for colder climates. The unit includes a variety of smart features such as auto defrost, sleep mode, and a smart sensor that adjusts temperature based on remote placement, allowing for personalized comfort.

In terms of noise, its operation is notably quiet, ranging from 30-41 dBa, which is a significant advantage for those sensitive to sound, especially during the night. However, the requirement for professional installation can be a drawback for users who prefer DIY projects or are looking to save on installation costs. The installation process also demands line-set vacuuming and adjustments to freon levels if modified, which adds to the complexity.

While the installation kit is included and covers a decent distance, the 16.4 ft length may not be sufficient for all configurations, potentially requiring additional materials. The unit's weight at 76 pounds also indicates that handling and installation may require more than one person. This mini-split air conditioner is a strong contender in its category, offering efficient cooling and heating with smart features, but it comes with specific installation needs that some users may find challenging.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
BTU (British Thermal Units)
The unit cools my 12' x12' bedroom down in minutes and has enough additional cooling capacity to keep my entire house cool on a 100-degree day.
Noise Level
The installation went exactly as it should have and the unit is working flawlessly so far. It is quiet both inside and out, making it easy to sleep with it running on quiet setting.
Installation Flexibility
Installation requires a vacuum pump and manifold gauges. Although the process is straightforward, it involves significant additional work like running new electrical circuits and possibly some concrete or plumbing tasks.
Heating Capability
The unit cools down and warms up your house efficiently, works through Wi-Fi and Alexa, and runs very quietly.
Smart Features
The unit cools down and warms up your house efficiently, works through Wi-Fi and Alexa, and runs very quietly.

Buying Guide for the Best Smallest Mini Split Air Conditioner

When choosing the smallest mini-split air conditioner, it's important to consider several key specifications to ensure you get the best fit for your needs. Mini-split air conditioners are great for providing efficient cooling and heating in specific areas without the need for extensive ductwork. To make an informed decision, you should understand the importance of each specification and how it relates to your specific requirements.
BTU (British Thermal Units)BTU measures the cooling or heating capacity of the air conditioner. It's important because it determines how effectively the unit can cool or heat a given space. For small rooms (up to 150 square feet), a unit with 5,000-6,000 BTU is usually sufficient. For medium-sized rooms (150-300 square feet), look for 7,000-8,000 BTU. For larger rooms (300-450 square feet), you might need 9,000-12,000 BTU. Choose a BTU rating that matches the size of the room you want to cool or heat to ensure optimal performance and energy efficiency.
SEER (Seasonal Energy Efficiency Ratio)SEER measures the energy efficiency of the air conditioner over a typical cooling season. A higher SEER rating means better energy efficiency, which can lead to lower electricity bills. SEER ratings typically range from 13 to 25. For moderate climates, a SEER rating of 14-16 is usually adequate. In hotter climates, a higher SEER rating (17-20) can be more beneficial. Consider your local climate and how often you'll be using the unit to determine the best SEER rating for you.
Noise LevelNoise level, measured in decibels (dB), indicates how loud the air conditioner will be during operation. This is important for maintaining a comfortable and quiet environment, especially in bedrooms or living areas. Noise levels for mini-split air conditioners typically range from 19 dB (very quiet) to 60 dB (moderate noise). For a peaceful environment, look for units with noise levels below 30 dB. If noise is less of a concern, units up to 50 dB can still be acceptable.
Installation FlexibilityInstallation flexibility refers to how easily the mini-split system can be installed in different locations and configurations. This is important for ensuring the unit can be placed in the most effective and convenient spot in your home. Some units offer more flexible installation options, such as longer refrigerant lines or multiple indoor units connected to a single outdoor unit. Consider your space and installation constraints to choose a system that offers the flexibility you need.
Heating CapabilityMany mini-split air conditioners also offer heating capabilities, making them useful year-round. This is important if you live in an area with cold winters or if you want a versatile unit that can provide both cooling and heating. Look for units with a heat pump feature, which can efficiently heat your space. The heating capacity is also measured in BTUs, so ensure it matches the size of the room you want to heat. If you need both cooling and heating, choose a unit with adequate BTU ratings for both functions.
Smart FeaturesSmart features include Wi-Fi connectivity, remote control via smartphone apps, and integration with smart home systems. These features are important for convenience and ease of use, allowing you to control the air conditioner from anywhere. If you value modern technology and convenience, look for units with these smart features. They can make managing your home's climate more efficient and user-friendly.

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