10 Best Cheap Mini Split Air Conditioner 2025 in the United States

The DELLA 24000 BTU Mini Split AC offers a good balance between power and efficiency, making it a solid option in the category of cheap mini-split air conditioners. With a cooling capacity of 24000 BTU, it effectively covers spaces up to 1500 square feet, accommodating medium to large rooms or open-plan areas. The 19 SEER2 rating is quite impressive for its price range, providing energy efficiency that can help reduce your electricity bills significantly.

One of its standout features is the quiet operation, with a noise level as low as 35 dB, which is ideal for maintaining a peaceful environment at home. Its smart functionalities, including compatibility with Alexa, WiFi control, and various operational modes like eco energy-saving, sleep, and turbo, enhance user convenience and comfort.

The system's design also supports versatile usage with options for both cooling and heating, which adds year-round utility. However, installation can be challenging. It is not a DIY project, requiring professional installation due to the need for line-set vacuuming and possible adjustments to freon levels. This adds to the initial cost, although the included installation kit may help reduce additional expenses.

For those needing an affordable and efficient air conditioning unit with smart features and quiet operation, and who are comfortable with professional installation, this DELLA model presents a compelling option. While the unit's efficient energy usage and quiet operation are appealing, its performance in extreme temperatures might be a limitation, as it operates down to 5 degrees Fahrenheit. Additionally, the requirement for professional setup might deter some users seeking a completely budget-friendly solution.

The Senville 36000 BTU Tri Zone Mini Split Air Conditioner is a powerful and efficient option for those looking to cool multiple rooms. With a high BTU rating of 36000, it has the capacity to handle large spaces or multiple rooms effectively. Its SEER rating of 22.5 indicates excellent energy efficiency, which can save on electricity bills over time.

The unit supports three zones, allowing for independent temperature control in different rooms, which enhances comfort and convenience. This system is versatile, suitable for both residential and commercial applications, and can operate in extremely cold temperatures, making it a reliable choice for various climates.

Additionally, it works with Alexa, enabling voice control and integration with smart home systems, which can add to the convenience and energy savings through programmable routines. The Senville unit does require professional installation, which could add to the initial cost and complexity. Maintenance may also be more involved compared to simpler units. The Senville 36000 BTU Tri Zone Mini Split Air Conditioner is a robust and efficient option for those needing a multi-zone cooling and heating solution.

The MRCOOL 24000 BTU Easy Pro Series mini split is a solid choice if you need a reliable air conditioner and heater for spaces up to about 1,050 square feet. Its cooling and heating combo means it works year-round, which is especially handy if you want one unit to handle both needs. With a noise level of 43 dB, it runs quietly enough for most home or office environments without causing much distraction. The ductless design and DIY-friendly installation make it easier to set up compared to traditional central AC systems, saving you on professional installation costs. It also includes features like a timer and refrigerant leakage detection, which help maintain performance and safety. The Active Clean Technology and easy-to-clean filters contribute to better indoor air quality, a nice bonus if you are concerned about allergens or dust.

This unit carries a 2-star energy rating, which means it may not be the most energy-saving option and could lead to moderately higher electricity bills if used frequently. It supports only a single zone, so it is best suited for cooling or heating one main area rather than multiple rooms. If you want a straightforward, budget-friendly mini split that covers a medium-sized room with both heating and cooling and you don’t mind a moderate energy rating, this MRCOOL model is worth considering.