10 Best Mini Split Systems 2025 in the United States

The DELLA Versa Series 36000 BTU mini-split system is a high-capacity unit designed to cool and heat spaces up to 2500 square feet, making it suitable for large rooms or small homes. With a SEER2 rating of 19, it is energy efficient, potentially saving up to 30% on power bills.

The system features a ductless inverter plus heat pump that can operate in very low temperatures, down to 5 degrees Fahrenheit, and includes a full installation kit, though professional installation is recommended as it requires specific adjustments and vacuuming of the line-set. The unit is relatively quiet, operating at 52 dBa, which should not be disruptive in most settings. It also supports smart control via Alexa, adding convenience to its use.

This mini-split system comes with several user-friendly modes like sleep, eco, turbo, and multiple fan speeds, providing flexibility to suit different comfort needs. However, the need for professional installation and the substantial weight of 154.4 pounds may be drawbacks for some users. While it ranks well in its category, its higher price point and complexity of installation might be limiting factors for budget-conscious or DIY users.

The Senville LETO Series Mini Split Air Conditioner Heat Pump offers a 9000 BTU capacity, making it suitable for smaller spaces up to 400 square feet. Its impressive SEER2 rating of 21.5 ensures high energy efficiency, helping to reduce electricity costs. This model is a single-zone unit, making it ideal for targeting specific areas like a bedroom or a small living room.

The indoor unit is stylish and functional, integrating seamlessly with home decor while also providing a low noise level of just 25 dB, which is perfect for maintaining a quiet environment. One of its standout features is the integration with Alexa, allowing for convenient voice control and app-based adjustments from anywhere. Additionally, the unit functions as a versatile 4-in-1 system, offering air conditioning, heating (effective down to 5F/-15C), dehumidification, and fan operations, along with a turbo function for rapid temperature changes.

It requires professional installation, which adds to the initial cost and complexity. The package includes an indoor air handler, outdoor condenser, remote control, and a 16 ft. installation kit, which is quite comprehensive. Although it comes with a strong 5-year warranty on parts and the compressor, labor costs are not covered. This mini-split system is not Energy Star compliant, which might be a consideration for some environmentally conscious buyers. The Senville LETO Series is a solid choice for those seeking a reliable, energy-efficient, and smart-enabled mini-split system for smaller spaces.

The DELL Versa Series 24000 BTU Mini Split AC is a strong contender in the mini-split system market, particularly for those looking to cool or heat larger spaces up to 1500 sq. ft. With a decent SEER rating of 19, it promotes energy efficiency, which is a significant plus for users looking to reduce their energy bills. The unit's smart features, such as 4D airflow control and a 'smart sensor' that senses room temperature via the remote, enhance comfort by adapting to your needs.

One of the standout qualities is its quiet operation at just 51 dBa, making it suitable for residential settings where noise can be an issue. Additionally, the inclusion of a heat pump allows it to function effectively even in temperatures as low as -4℉, giving it versatility for year-round use. The remote control and compatibility with Alexa and Wi-Fi make it a modern choice for tech-savvy consumers.

The installation is not a DIY project, as it requires professional setup and line-set vacuuming, which could add to the overall cost. While the unit accommodates large spaces, users in smaller environments may not find it necessary or cost-effective. The noise rating of 51 dBa is relatively quiet, but it's essential to note that this could be higher than some users prefer in completely silent spaces. The DELL Versa Series is well-suited for those needing a powerful, efficient cooling and heating solution for larger areas, especially in homes where installation can be arranged easily.