10 Best Mini Splits 2025 in the United States

The MRCOOL DIY 36K BTU mini-split is a strong choice if you're looking for a single-zone air conditioner that can cool larger spaces—up to around 15,000 square feet. It offers a high efficiency rating with an 18 SEER and 12 HSPF, meaning it uses less energy than many traditional units and can help reduce electricity bills, especially during frequent use. The unit runs quietly at just 34 decibels, so it won't be a noisy distraction in your home.

One of its standout features is the DIY-friendly installation with pre-charged lines and quick-connect fittings, making it accessible for those comfortable with basic home projects without needing specialized HVAC tools or professionals. It also supports smart controls via smartphone apps, allowing you to adjust settings remotely, which adds convenience. The unit includes helpful safety features like leakage detection and an auto restart after power outages, enhancing reliability and peace of mind. Although designed for single-zone use only, it is Energy Star certified, confirming it meets recognized energy efficiency standards in the U.S.

The size and weight are on the larger side, so ensure you have adequate space and support for wall mounting. This model suits homeowners or renters wanting a powerful, energy-efficient cooling solution with relatively simple installation and smart controls, but it may not be ideal if you need multi-zone coverage or prefer a professional setup.

The Senville LETO Series Mini Split is a solid choice if you’re looking for a quiet and efficient 1.5-ton air conditioner and heat pump system suitable for about 1,000 square feet. With an 18,000 BTU cooling capacity and a good SEER rating of 19, it offers energy-efficient performance that can help keep electricity costs reasonable. This model is versatile, working as both a cooling and heating unit, and can function in cold weather down to about 5°F, making it useful year-round in many climates. It also includes handy features like Alexa compatibility, so you can adjust settings with your voice or remotely via an app, which adds convenience. Noise levels are quite low at 30 dB, meaning it won’t disturb your living or working space.

It is designed for single-zone use only, so it’s best suited for one room or open area rather than multiple rooms. Installation requires a professional, and although the package comes with necessary parts including a 16-foot refrigerant line, installations beyond that length might incur extra costs. The system is not Energy Star certified, which might be a consideration if you prioritize top energy-saving certifications. The included warranty covers the compressor and parts for five years, which offers some peace of mind.

This mini-split is a strong option for homeowners or small businesses wanting a quiet, efficient, and smart-controlled heating and cooling system for a single space, but it may not be the best fit if you need multi-zone capabilities or the highest energy standards.

The Senville SENA-36HF/D Dual Zone Mini Split Air Conditioner Heat Pump is a powerful and versatile option for those needing efficient climate control in multiple rooms. With a total cooling power of 36000 BTU and dual 18000 BTU indoor air handlers, it effectively manages larger spaces, making it suitable for both residential and commercial settings such as restaurants or warehouses. Its high SEER rating of 22 indicates excellent energy efficiency, which can be enhanced further with Alexa integration, allowing for voice control and energy-saving routines that reduce costs by up to 40%. This system is designed to perform well in extreme conditions, with an Arctic Heat Pump that operates efficiently even at -22°F/-30°C.

Additionally, it runs quietly at a noise level of just 24 dB, ensuring minimal disruption to daily activities. However, the Senville SENA-36HF/D is not a DIY installation and requires professional setup, which may add to the initial cost. On the plus side, it comes with a comprehensive installation kit and is backed by a robust warranty of 5 years on parts and 10 years on the compressor, providing long-term peace of mind.

The requirement for a 220V power source might be a consideration for some. This mini split system's blend of performance, efficiency, and smart features makes it an attractive choice for those seeking reliable, high-quality climate control across multiple zones.