10 Best Ductless Mini Split Systems 2026 in the United States

The DELLA Vario 24000 BTU Mini Split is a solid choice for cooling or heating a medium to large space—up to about 1500 square feet. Its 24000 BTU capacity and 19 SEER2 rating make it quite energy efficient, helping save on electricity bills compared to less efficient units. It also includes a 2-ton heat pump that operates well even in cold temperatures down to -4°F, making it versatile for year-round use. Noise is kept low at roughly 35 dB, so it runs quietly without disturbing your daily activities.

One standout feature is the smart sensor in the remote control that adjusts airflow and temperature based on room conditions, adding to comfort and efficiency. It also supports Alexa and WiFi control, which is convenient if you like smart home integration. However, this system covers only a single zone, so if you want to cool or heat multiple rooms independently, you might need to look for multi-zone models.

Installation isn’t DIY-friendly—it requires a professional to vacuum the line-set and handle refrigerant adjustments, so be prepared for extra installation costs. Maintenance is typical for ductless systems and should be performed regularly to keep it running smoothly. This unit is well-suited for homeowners looking for an energy-efficient, quiet, and smart-controlled mini split for a single zone with solid heating and cooling capabilities.

The Senville AURA Series Mini Split Air Conditioner Inverter Heat Pump is an efficient choice for those needing powerful climate control, offering 33000 BTU of cooling power suitable for larger spaces. With a SEER rating of 19.5, it ensures energy efficiency which is ideal for reducing electricity bills, and its Energy Star certification further confirms this efficiency. Heating capabilities are also robust, functioning effectively in extremely cold conditions down to -22°F, making it suitable for regions with harsh winters.

The system’s noise level is relatively low at 35 dB, promising quieter operation which is great for both residential and commercial settings. It supports voice control through Alexa, adding convenience for tech-savvy users who enjoy smart home integration. However, it does require professional installation, which may incur additional costs and effort. Maintenance might be straightforward given the 5-year parts and 10-year compressor warranty, although labor is not covered under warranty, potentially leading to extra expenses for part replacements.

The design is versatile and aesthetically pleasing, fitting well into various environments. On the downside, the system is not DIY-friendly and the substantial weight and size may pose handling challenges during installation. Ideal users are those needing high-capacity cooling and heating with smart home compatibility and are prepared for professional setup.

The Senville 36000 BTU Quad Zone Mini Split is a solid choice if you need to cool or heat multiple rooms independently, thanks to its four indoor units each providing 9000 BTUs, totaling 3 tons of capacity. This makes it well-suited for larger homes or small commercial spaces covering about 1800 square feet. With a high SEER rating of 22.5, it offers strong energy efficiency, which can help lower electricity bills over time. The system is also AHRI certified and includes a heat pump that works efficiently in very cold weather, down to -22°F, so it’s a versatile option for both heating and cooling across seasons.

One standout feature is Alexa compatibility, allowing for convenient voice control and remote temperature adjustments, along with energy-saving routines that could cut costs by up to 40%. Noise-wise, the indoor units operate quietly at 23.5 dB, which is barely noticeable in daily use. This system requires professional installation and isn’t a DIY setup, and with a weight of 225 pounds plus the need for a 220V power supply, setup can be more involved compared to simpler units. If you want a reliable, efficient multi-zone mini split with smart features and don’t mind professional installation, this Senville system is worth considering.