10 Best Mini Split Units 2026 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 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.

The Daikin 24,000 BTU 21 SEER2 3-Zone Mini Split Air Conditioner Heat Pump System is an advanced and versatile option in the mini-split unit category. With a total capacity of 24,000 BTU, it includes three independently controlled zones (9,000 BTU, 12,000 BTU, and 12,000 BTU), making it ideal for personalized climate control in multiple spaces. The impressive SEER rating of 21, along with a 10 HSPF rating, ensures high energy efficiency, which means lower energy bills over time. This unit is designed to provide efficient cooling and heating across a wide temperature range, from 14°F to 115°F for cooling and 5°F to 59.9°F for heating, making it suitable for various climates and applications, including renovations and spaces without traditional ductwork like sunrooms and basements.

The inclusion of Wi-Fi connectivity allows for easy control via the Daikin One Home app or voice commands with Alexa and Google Home, adding convenience and modern comfort features. The system operates quietly, with indoor noise levels as low as 24 dB, which is a significant advantage for maintaining a peaceful indoor environment. Installation is facilitated by the Maxwell installation kit and mounting bracket, although professional installation is recommended for optimal performance and warranty protection.

One potential drawback is that the product is not Energy Star rated, which might be a consideration for users prioritizing certified energy efficiency labels. Additionally, while the system comes with a robust 12-year warranty, the initial cost and complexity of installation might be higher compared to simpler single-zone units. However, the extensive warranty and feature set, including enhanced air quality and humidity control, make it a compelling choice for those seeking a high-performance, multi-zone mini-split system.