10 Best Mini Split Systems 2025 in the United States

The Senville LETO Series Mini Split is a solid choice if you need an efficient and versatile heating and cooling solution for about 1,250 square feet. With a 24,500 BTU capacity (or 2 tons), it offers enough power to keep mid-sized rooms comfortable. Its SEER rating of 17 means it uses energy fairly efficiently, helping to lower electricity bills compared to older or less efficient models. One standout feature is its inverter compressor, which adjusts speed to save power and maintain steady temperatures, plus it’s AHRI certified for reliability.

This mini-split supports heating down to 5°F (-15°C), making it useful in colder climates, and also functions as a dehumidifier and fan, adding to its all-season flexibility. It’s quiet too, operating at a low noise level of 34 dB, so it won’t disrupt your daily life or sleep. The included installation kit and pre-charged refrigerant streamline setup, but professional installation is still recommended to ensure it runs correctly.

You can control the system hands-free via Alexa or with an app, which is convenient if you want to adjust settings remotely or set routines. The product comes with a 5-year warranty on parts and compressor, though labor is not covered, and the initial cost and installation might be a consideration. The unit is a single-zone system, so it’s best suited for one main area rather than multiple rooms. If you want a quiet, energy-efficient mini-split that offers reliable heating and cooling with modern smart features, the Senville LETO Series fits the bill well, especially for medium-sized spaces where a neat, unobtrusive system is desired.

The DELLA Versa Series 36000 BTU mini-split system is a high-capacity unit designed to cool and heat spaces up to 2500 square feet, making it suitable for large rooms or small homes. With a SEER2 rating of 19, it is energy efficient, potentially saving up to 30% on power bills.

The system features a ductless inverter plus heat pump that can operate in very low temperatures, down to 5 degrees Fahrenheit, and includes a full installation kit, though professional installation is recommended as it requires specific adjustments and vacuuming of the line-set. The unit is relatively quiet, operating at 52 dBa, which should not be disruptive in most settings. It also supports smart control via Alexa, adding convenience to its use.

This mini-split system comes with several user-friendly modes like sleep, eco, turbo, and multiple fan speeds, providing flexibility to suit different comfort needs. However, the need for professional installation and the substantial weight of 154.4 pounds may be drawbacks for some users. While it ranks well in its category, its higher price point and complexity of installation might be limiting factors for budget-conscious or DIY users.

The Senville LETO Series Mini Split is a solid choice if you're looking for a single-zone mini-split system with around 12,000 BTU capacity, which typically suits medium-sized rooms such as bedrooms or small living spaces. It has a high SEER rating of 20.8 (SEER2 standard), meaning it operates efficiently and can help save on electricity bills. This model stands out with smart home compatibility, allowing you to control it via Alexa or an app, which is convenient for modern households.

The system is versatile, functioning as a heat pump effective down to 5°F (-15°C), providing both cooling and heating, plus dehumidifying and fan options. This makes it useful all year round. It includes all necessary components and refrigerant for installation, though professional setup is needed. It also comes with a 5-year warranty on parts and compressor, which adds peace of mind. However, it’s designed for a single zone only, so it’s not suitable if you want to control multiple rooms independently.

Noise level information isn’t specified, so if a very quiet unit is a priority, you might want to check further. Also, while it’s energy efficient, it is not Energy Star certified, which some buyers look for as a standard of environmental friendliness. This mini-split is a reliable, efficient solution for heating and cooling one room, featuring smart controls and solid warranty support.