10 Best Mini Split Units 2025 in the United States

The MRCOOL 36,000 BTU 5th Gen DIY Mini Split is a strong choice for cooling and heating spaces up to about 1,550 square feet, making it suitable for larger rooms, offices, or small commercial areas. Its 18 SEER rating indicates good energy efficiency, which helps reduce electricity bills during use. The noise level of 46 decibels is fairly quiet, so it won't be disruptive in a home or office environment. This model supports one zone, meaning it controls temperature in a single area rather than multiple separate rooms. A major plus is the easy DIY installation with pre-charged, quick-connect line sets that don’t require professional skills or special tools, saving money on setup. It also comes with smart controls compatible with Alexa and Google Assistant, making temperature adjustments convenient.

The unit combines cooling, heating, and dehumidifying features, so it works year-round and improves indoor comfort. It operates on 230 volts and is fairly heavy at 180 pounds, which might require some help during installation. The product offers a solid warranty (5 years parts, 7 years compressor), adding peace of mind. If you want a user-friendly, energy-smart mini split with strong capacity and easy setup for a single zone, this MRCOOL model fits well. However, if you need multi-zone control, you might want to explore other options.

The Senville AURA Series Mini Split Air Conditioner offers strong cooling and heating with a 33,000 BTU capacity, making it suitable for medium to larger rooms or small commercial spaces. Its SEER rating of 19.5 indicates it is quite energy efficient, which can help reduce electricity bills over time. The unit also has an HSPF rating that supports effective heating, even in very cold conditions down to -22°F, which is a plus if you need year-round climate control. Noise level is reasonably low at 35 dB, meaning it should run quietly enough for bedrooms or living areas without causing disturbance. One of the standout features is Alexa compatibility, allowing you to control the system remotely or with voice commands, which makes managing temperature settings convenient and modern.

The system is designed for single-zone use and includes all necessary components like the indoor air handler, outdoor condenser, and lines for installation. Professional installation is required to keep the warranty valid, and installation labor costs are not covered, which can add to the upfront expense. While the product is well-backed by a solid warranty (5 years parts and 10 years for the compressor), the size and weight (157 pounds) mean it’s not a DIY-friendly option for most people.

This makes the Senville AURA Series a reliable and efficient mini split system for those seeking smart features and strong climate control in a single-zone setup, with the caveat of requiring professional installation and its related costs.

The TOSOT 9,000 BTU mini-split unit is a solid choice for cooling and heating spaces up to about 450 square feet. Its cooling capacity of 9,100 BTU suits small to medium rooms, making it ideal for bedrooms, offices, or studio apartments. One of its standout features is the high SEER2 rating of 20.5, which means it offers excellent energy efficiency that can help reduce electricity bills significantly.

It also supports heating in cold weather down to -13°F, so it can be used year-round. The noise level is impressively low, operating around 24 decibels, which is quieter than a whisper, making it great for quiet environments. This mini-split is WiFi-enabled with voice control, allowing easy remote management through an app or smart home devices, which adds to user convenience. In terms of installation, it comes with a 16-foot copper line set. As a single-zone system, it is best suited for one specific area rather than multiple rooms.

The unit has a good 5-year warranty, but some users might find professional installation necessary, which adds to the initial cost. This TOSOT mini-split blends quiet and efficient performance with smart features, providing a practical option for those looking to cool and heat a single room efficiently.