10 Best Mini Split Units 2026 in the United States

The Senville LETO Series Mini Split offers a solid 18,000 BTU cooling capacity, making it a good fit for medium-sized rooms up to about 1,000 square feet. With a SEER rating of 19, it promises energy-efficient operation, which helps keep electricity bills lower during use. It also works as a heat pump effectively down to 5°F, adding year-round comfort with heating and cooling options. This model supports a single zone, meaning it can control temperature in one room or area at a time. Noise level is very low at about 30 dB, so it won’t disturb your daily activities or sleep.

The unit includes an installation kit and refrigerant for up to 25 feet of line set, but professional installation is recommended for safety and performance reasons. One interesting feature is its Alexa compatibility, allowing smart home integration for easy voice or app control. However, the system is not BEE star rated, which might be a consideration if you prioritize eco-labels. The warranty covers parts for 2 years and the compressor for 5 years, providing decent peace of mind for long-term use.

Though the price and installation requirements may be a bit higher than window units or simpler models, this mini split is a versatile and quiet option that combines modern smart features with reliable cooling and heating in one package.

The COSTWAY 18000BTU Mini Split is a solid choice for cooling and heating rooms up to about 1250 square feet, thanks to its good BTU capacity and a strong 1.5-ton heat pump. Its SEER rating of 19 means it’s quite energy efficient, which helps lower electricity bills. The unit uses modern R-32 refrigerant, which is better for the environment compared to older types. You get five operation modes including cooling, heating, dehumidifying, and fan options, plus handy features like ECO mode and a turbo boost for quick comfort.

Noise level is around 56 dB, which is moderate—quiet enough for most living spaces but possibly noticeable in very quiet rooms. The remote control and smart timer add convenience, and the self-cleaning function helps reduce maintenance effort. However, installation must be done by a licensed HVAC professional, which adds to initial setup cost and complexity.

This model is a single-zone system, so it’s best suited for one main area rather than multiple rooms. For those seeking a reliable, energy-saving mini split that covers a medium-sized space while maintaining reasonable noise levels, this unit fits well, provided you are comfortable with professional installation requirements.

The MRCOOL Easy Pro 24,000 BTU mini-split unit is a solid choice for heating and cooling a space up to about 1,050 square feet. Its 24,000 BTU capacity should provide reliable comfort for medium-sized rooms or small homes. One of its biggest advantages is the easy DIY installation, which can save you money on professional setup and reduce hassle. This unit also operates quietly at 43 decibels, making it suitable for bedrooms or living areas where low noise is important. It offers both heating and cooling year-round, controlled conveniently through WiFi and compatible with voice assistants like Google and Alexa, which adds a modern touch and ease of use.

The product has a 2-star BEE rating, indicating it may consume more power compared to other mini-splits with higher energy efficiency ratings. It supports only a single zone, so it is best suited for one main area rather than multiple rooms. Maintenance and running costs should be reasonable due to the inverter technology.

This MRCOOL model is ideal if you want a quiet, easy-to-install, and smart-controlled mini-split for a single zone, although it may not be the most energy-efficient option available.