10 Best Ductless Air Conditioners 2026 in the United States

The Shinco 12,000 BTU Portable Air Conditioner is a strong choice for cooling rooms up to about 450 square feet, making it suitable for small to medium spaces like bedrooms or offices. Its 12,000 BTU cooling capacity ensures it can handle warmer days effectively, while the adjustable temperature range gives you control over comfort. This unit includes a 3-in-1 function—cooling, fan, and dehumidifier—making it useful year-round, especially if you want to reduce humidity indoors. The dehumidifier can remove a substantial amount of moisture daily without needing manual water removal, which adds convenience.

On the energy side, its SEER rating is 2.6, which is on the lower side, so it may use more electricity compared to more efficient models. The noise level is around 52 decibels—comparable to a quiet conversation—so it’s noticeable but generally not disruptive. Installation is straightforward thanks to the included exhaust hose and window sealing kit, and since it’s portable with wheels, you can easily move it between rooms. The ability to control the unit via a smartphone app or remote adds modern convenience.

A limitation is that it doesn’t use an inverter compressor, which means it might not be as energy-efficient or as quiet as some inverter-based models. Also, with just one zone, it’s best for cooling a single room rather than multiple areas. If you want a portable, easy-to-install air conditioner with smart controls and dehumidifying features for a typical room size, the Shinco unit is worth considering, but it might consume more power and be a bit louder than some other options.

The MrCool DIY 36k BTU ductless mini split system is a strong choice for cooling and heating medium to large spaces, such as large rooms or small apartments, with its powerful 36,000 BTU capacity (or 3 tons). It stands out with a very high energy efficiency rating of 23.6 SEER2, which means it can save you money on electricity over time compared to less efficient models. The system operates quietly at around 43 dB, which is about the noise level of a normal conversation, so it won’t be disruptive in your home. This 5th generation unit supports a single zone, making it a good fit if you need to control the temperature in one main area rather than multiple rooms.

A big plus is its DIY installation design that includes all necessary parts, so homeowners comfortable with basic tools can install it without professional help, potentially saving on installation costs. The system also comes with a 1-year labor warranty, giving some peace of mind for repairs or issues during the first year. On the downside, it only supports one zone, so it’s less ideal for cooling or heating multiple rooms independently. Also, while it is marketed as DIY, the unit is quite large and heavy (over 130 pounds), which might be challenging for some to install alone.

Its annual energy consumption is moderate but should be considered if you are sensitive to power use. This MrCool model is well-suited for energy-conscious users needing reliable cooling and heating in a single space, who want the option to install the system themselves and don’t require multi-zone control.

The Senville LETO Series Mini Split Air Conditioner Heat Pump is a versatile and powerful option for those seeking both cooling and heating solutions. With a cooling capacity of 18,000 BTU, it can efficiently manage temperature control in spaces up to 1,000 square feet, making it suitable for larger rooms or small commercial spaces. The SEER rating of 19 indicates good energy efficiency, although it is not Energy Star compliant, meaning it might not be the most efficient option available.

One of its notable features is the low noise level of 30 dB, which ensures quiet operation, beneficial for environments like bedrooms and offices where minimal noise is crucial. This unit is designed to cover a single zone, which limits its use in multi-room setups but is ideal for concentrated heating or cooling in a specific area. Installation is somewhat straightforward with the included kit, though professional installation is required, which could add to the initial cost.

Maintenance is made easier with pre-loaded refrigerant and a 5-year warranty on parts and the compressor, although labor is not included in the warranty. Additional features such as integration with Alexa for voice control, a dehumidifier, fan, and turbo function add to its versatility, making it a comprehensive all-season appliance. The product is also aesthetically pleasing, suitable for both home and business environments.