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 COSTWAY 12000BTU Mini Split Air Conditioner & Heater is a versatile unit designed to cool and heat rooms up to 750 sq. ft. It boasts a high Seasonal Energy Efficiency Ratio (SEER) of 20, indicating excellent energy efficiency, which can translate to lower energy bills. The unit also features an inverter compressor, which allows for more efficient and quieter operation by adjusting the power supply frequency. At 51 dB, it has a moderate noise level, which should be acceptable for most users in living rooms or bedrooms.

Its pre-charged R32 refrigerant is a more eco-friendly option compared to older refrigerants, supporting a greener choice for environmentally conscious consumers. With five operation modes (auto, cool, dry, heat, and fan) and various fan speeds, the unit offers flexibility and can cater to a range of comfort preferences throughout the year. The self-cleaning feature and auto-defrost function add convenience, ensuring the unit remains efficient and maintains clean air. Users will find the included remote control with a display screen helpful for managing the unit from a distance.

Maintenance is made easier with the washable filter and self-cleaning capabilities. However, installation must be performed by a licensed HVAC installer, which could add to the initial cost and complexity. Additionally, while the unit comes with a solid warranty (5 years for parts, 8 years for the compressor), those who prefer a quieter operation might find the 51 dB noise level slightly higher than some ultra-quiet models available on the market. Its robust feature set, energy efficiency, and year-round functionality make it a strong contender in the mini-split category, particularly for medium-sized rooms.

The YITAHOME 12000 BTU Mini Split Air Conditioner Heat Pump System is a highly efficient unit with a SEER rating of 20, indicating strong energy efficiency. It is suitable for spaces up to 750 square feet, making it ideal for various rooms like bedrooms, living rooms, and even commercial spaces. The unit operates quietly, with noise levels below 41 decibels, ensuring a peaceful environment. Additionally, it is equipped with innovative inverter technology, contributing to energy savings of up to 25%.

The system is also versatile, offering five modes (auto, cool, dry, heat, fan) and features like WiFi compatibility, Alexa integration, automatic defrosting, self-diagnosis, and various health modes for air purity. It performs well in extreme temperatures, ranging from 5°F to 118°F, making it reliable year-round. The complete installation kit is a plus, although professional installation is recommended, which could add to the overall cost.

One potential drawback is the system's requirement to ship in two packages, which may arrive separately, possibly complicating setup. The product comes with a solid 5-year warranty. It is a good fit for users looking for a quiet, energy-efficient, and feature-rich mini split unit.