10 Best Mini Split Units 2026 in the United States

The Senville LETO Series Mini Split offers a solid 18,000 BTU cooling capacity, making it a good fit for medium-sized rooms up to about 1,000 square feet. With a SEER rating of 19, it promises energy-efficient operation, which helps keep electricity bills lower during use. It also works as a heat pump effectively down to 5°F, adding year-round comfort with heating and cooling options. This model supports a single zone, meaning it can control temperature in one room or area at a time. Noise level is very low at about 30 dB, so it won’t disturb your daily activities or sleep.

The unit includes an installation kit and refrigerant for up to 25 feet of line set, but professional installation is recommended for safety and performance reasons. One interesting feature is its Alexa compatibility, allowing smart home integration for easy voice or app control. However, the system is not BEE star rated, which might be a consideration if you prioritize eco-labels. The warranty covers parts for 2 years and the compressor for 5 years, providing decent peace of mind for long-term use.

Though the price and installation requirements may be a bit higher than window units or simpler models, this mini split is a versatile and quiet option that combines modern smart features with reliable cooling and heating in one package.

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 MRCOOL 18000 BTU mini-split unit is a solid choice if you need to cool or heat a space up to about 800 square feet. With 18,000 BTUs, it’s powerful enough for a medium-sized room or office. It has a high SEER rating of 22.5, which means it runs efficiently and can help lower energy bills. The unit also offers heating, making it useful all year round. One standout feature is that it’s designed for easy DIY installation—no special tools or professional help needed—thanks to its pre-charged, quick-connect line sets. This can save time and installation costs. The noise level is reasonably low at 46 dB, so it won’t be overly disruptive in your living or work space.

It includes smart features like WiFi control and compatibility with voice assistants, letting you adjust settings conveniently from your phone or with simple voice commands. However, this model serves only a single zone, meaning it controls the temperature in one area rather than multiple rooms. Also, its BEE star rating is just 1 star, which is relatively low compared to other energy-efficient systems, though this is less commonly used as a reference in the US.

The warranty is strong, offering 5 years on parts and 7 years on the compressor, which provides peace of mind. If you need a user-friendly, efficient mini-split with both heating and cooling that you can install yourself, this MRCOOL unit fits the bill well. For those looking to control multiple zones or wanting the highest energy star rating, other options might be more suitable.