10 Best Ductless Mini Split Systems 2025 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 36000 BTU Tri Zone Mini Split is a solid choice for anyone needing to cool or heat multiple rooms individually, thanks to its three separate air handlers managed by one outdoor unit. With a strong 36,000 BTU capacity and a 3-ton rating, it’s powerful enough for medium to larger homes or small commercial spaces. Its high SEER rating of 22.5 means it is energy-efficient, helping you save on electricity bills compared to less efficient models. The unit's Arctic Heat Pump is designed to perform well in very cold temperatures, down to -22°F, which is great if you live in a chilly climate.

One of the standout features is compatibility with Alexa, allowing voice control and remote management, which can also contribute to energy savings when you’re away. The system comes with a comprehensive installation kit, but professional installation is required—not a DIY job—which might add to upfront costs but ensures proper setup and warranty coverage. A 5-year parts and 10-year compressor warranty offers reasonable peace of mind.

This mini split is ideal for users who want a reliable, energy-efficient, multi-zone system with smart controls, provided they are comfortable with professional installation and can confirm noise expectations.

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.