10 Best Mini Split Units 2025 in the United States

The Senville LETO Series Mini Split is a solid choice if you need a 2-ton (24,500 BTU) unit capable of cooling or heating spaces up to around 1,250 square feet. Its SEER rating of 17 is respectable, meaning it’s fairly energy-efficient for year-round use, complemented by an inverter compressor that adjusts power use to save energy. The heat pump function works efficiently down to about 5°F, so it can provide heat in moderately cold climates. Noise level is quite low at 34 dB, which should keep your environment quiet and comfortable. This model supports one zone, so it’s best suited for single-room or open-plan areas rather than multiple zones.

Installation includes all necessary components and refrigerant for up to 25 feet of piping, but professional installation is required and labor costs are extra. The unit integrates with Alexa for convenient voice control and remote app access, a nice modern feature that can enhance ease of use. One downside is that the product is rated below some energy star standards and is imported from China, which may concern buyers focused on certification or support. The 5-year warranty on the compressor and parts offers good peace of mind, though labor isn't covered.

This mini-split fits well for homeowners or small businesses looking for a powerful, quiet, and smart-controlled system primarily for a single zone.

The Senville LETO Series Mini Split Air Conditioner Heat Pump is a versatile unit that excels in cooling and heating with a solid 9000 BTU capacity, making it suitable for spaces up to 400 square feet. One of its standout features is the Alexa compatibility, allowing for convenient voice control or app adjustments, which is perfect for tech-savvy users looking to integrate smart home solutions. With a high SEER rating of 21.5, it offers excellent energy efficiency, which can lead to lower electricity bills over time. The noise level is impressively low at just 25 dB, making it a quiet option for bedrooms or living areas.

The mini split unit's 4-in-1 functionality, providing air conditioning, heating, dehumidification, and fan modes, adds great versatility, making it a reliable option year-round. The requirement for professional installation might be a drawback for those hoping to set up a unit themselves, involving additional costs or effort. Additionally, while it boasts a robust warranty of 5 years on parts and the compressor, the labor costs for installation are not covered, which is something to keep in mind.

On the aesthetic side, it combines style with functionality, fitting well in both residential and commercial environments. It's important to note that it's not Energy Star compliant, which may be a consideration for those particularly focused on energy ratings. The Senville LETO Series is a strong contender in the mini-split category, especially for those who value energy efficiency, low noise, and smart home integration but may require professional help for installation.

The Della Vario 18000 BTU Mini Split AC is a solid choice if you need to cool or heat a medium-sized space up to about 1000 square feet. Its 1.5-ton capacity and 19 SEER2 rating mean it’s energy efficient and can save on power bills compared to older or less efficient units. It also operates quietly at 50 dB, so it won’t be disruptive in your home. The unit features modern conveniences like WiFi and Alexa compatibility, allowing easy control from your smartphone or voice commands. It’s equipped with a heat pump that works even in temperatures as low as -4°F, making it useful for mild heating in colder months.

The system includes smart airflow controls and multiple modes like sleep and energy-saving eco mode for comfort and efficiency. However, it supports only a single zone, so it’s limited to one room or open area rather than cooling multiple separate rooms. Installation is more involved than window units; it requires professional help because of line-set vacuuming and refrigerant adjustment, so DIY installation isn’t recommended. While the included installation kit is convenient, this adds to the overall cost.

If you want a reliable, energy-saving mini-split for a single room or space with quiet operation and smart features, the Della Vario is a good pick, but factor in professional installation and single-zone use before deciding.