10 Best Mini Splits 2025 in the United States

The COSTWAY 12000 BTU mini split is a solid choice if you need a compact, energy-efficient unit to cool or heat a medium-sized room (up to about 750 square feet). Its 1-ton heat pump and 20 SEER rating mean it uses less electricity compared to many older models, helping keep energy bills lower. It offers five modes—including heating, cooling, dry, and fan—to suit different weather conditions year-round. The inverter technology helps maintain a steady temperature without constantly switching the compressor on and off, which saves power and extends the unit’s life. Noise is fairly low at around 51 decibels, so it won’t disturb a quiet room, and features like a remote control with a sleep timer add convenience.

The self-cleaning function and washable filter help maintain good air quality, while the auto-defrost feature protects the outdoor unit in cold weather. Installation requires a licensed professional and involves mounting the indoor and outdoor units separately. Some potential drawbacks are that it only supports a single zone, so it’s best for one main living area rather than multiple rooms. Also, the 115V power requirement may limit placement options depending on your home’s wiring.

With smart-like features such as iFEEL, which senses temperature around the remote, the unit still lacks full smart home integration. This mini split is well-suited for users who want dependable heating and cooling with a focus on energy savings and quiet operation in a single room 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-30HF/T Tri Zone Mini Split is a strong choice for those seeking an efficient and versatile air conditioning and heating solution. With a cooling power of 28,000 BTU, it's suitable for large areas up to 1500 square feet and can handle multiple rooms due to its tri-zone capability. Its high SEER rating of 23.0 indicates excellent energy efficiency, which can lead to significant savings on electricity bills.

Additionally, the unit operates quietly at 25 dB, making it suitable for bedrooms and other quiet spaces. The Alexa-enabled feature adds convenience, allowing for voice or app control, enhancing ease of use and energy savings. The installation kit is comprehensive, though professional installation is required, which might be an added cost to consider.

It's backed by a solid warranty—10 years on the compressor and 5 years on parts—which provides peace of mind. If you need a reliable, efficient mini-split system for multiple rooms, the Senville SENA-30HF/T is worth considering, especially for home or small business use.