10 Best Mini Split Seer Rating 2025 in the United States

The Senville LETO Series Mini Split Air Conditioner and Heat Pump stands out with its SEER rating of 19, which signifies good energy efficiency. This is a strong point since a higher SEER rating means lower energy consumption and cost savings over time. It’s particularly beneficial for users looking to efficiently cool or heat spaces up to 1000 square feet, like bedrooms, living rooms, or small commercial areas.

The unit offers versatile functions including air conditioning, heating, dehumidifying, and a fan mode, making it suitable for year-round use. Integration with Alexa is a modern convenience, allowing users to manage settings via voice commands or an app, which adds to its user-friendliness. The package includes necessary installation components and a 5-year warranty on both parts and the compressor, showing confidence in its durability and reliability.

However, it is not Energy Star compliant, which means it might not meet some of the highest standards for energy efficiency. Also, professional installation is required, which could add an extra cost if you don't have the skills to set it up yourself. The noise level is fairly low at 30 dB, making it a quiet option for home and business use. The Senville LETO Series is a solid choice for those looking for multi-functional climate control with good energy efficiency and modern conveniences, despite its lack of Energy Star compliance and the need for professional installation.

The DELL Versa Series 18000 BTU Wifi Mini Split AC stands out in the mini-split category primarily due to its impressive 19 SEER2 rating, which indicates excellent energy efficiency. This means it can cool spaces up to 1000 square feet while offering significant power savings, making it a suitable choice for users looking to reduce energy bills without sacrificing comfort. The unit's ability to function in low temperatures down to 5°F is a strong point, especially for those in cooler climates.

One of its notable features is the smart sensor that adjusts the cooling based on the room temperature detected by the remote, enhancing personal comfort. Additionally, the variety of modes, including eco and turbo functions, provides flexibility for different needs throughout the year. The noise level of 50 dB is relatively quiet, which is a bonus for residential settings.

There are a few considerations to keep in mind. The requirement for professional installation may deter some DIY enthusiasts, and users will need to factor in the costs for this service. While the unit comes with a comprehensive installation kit, the necessity for line-set vacuuming and freon adjustments can complicate setup. Another potential drawback is its weight at 98.2 pounds, which may require additional help during installation. The DELL Versa Series mini-split AC is a strong choice for homeowners looking for an energy-efficient cooling solution capable of heating and cooling larger spaces, provided they are comfortable with professional installation.

The DELL Versa Series 12000 BTU Mini Split Air Conditioner is an impressive choice for those seeking an energy-efficient cooling and heating solution for medium-sized rooms. With a SEER2 rating of 19, this unit is well above average in energy efficiency, which can lead to lower energy bills over time. The ability to cool and heat spaces up to 750 square feet makes it suitable for living areas, bedrooms, or home offices, while its capability to operate in temperatures as low as -4℉ is a significant advantage for colder climates.

A standout feature is its smart sensor technology, which allows the unit to sense the remote control's temperature, ensuring personalized comfort. The quiet operation at just 30-41 dBa makes it a great option for environments where noise is a concern, like bedrooms or study areas. Additionally, the automatic settings, including a 24-hour timer and eco mode, enhance its user-friendliness and energy-saving potential.

There are a few drawbacks to consider. Installation must be performed by professionals, which could increase the initial cost and complicate setup for some users. Additionally, while the included installation kit is helpful, the requirement for proper line-set vacuuming and freon adjustments may deter DIY enthusiasts. Another point to note is the weight of the unit at 76 pounds, which could make handling during installation more challenging.