10 Best Multi Zone Mini Split Systems 2025 in the United States

The DELL A 18K BTU Dual Zone Mini Split System is designed to efficiently cool and heat multiple rooms, making it a great option for homes needing climate control in two separate areas. With a solid BTU rating of 18,000 and a high energy efficiency rating of 20 SEER2, it promises significant energy savings, which is a major plus for those looking to lower their utility bills. The system operates quietly at just 41 dBa, ensuring a comfortable environment without disruptive noise. This is particularly beneficial for bedrooms or study areas where peace and quiet are essential.

Installation is a bit complex as it requires professional help due to the need for line-set vacuuming and adjustments to freon levels. This can add to the cost and may be a drawback for DIY enthusiasts. However, the inclusion of two indoor units and a robust outdoor unit provides excellent coverage for up to 1,100 square feet, with the flexibility of individual temperature control for each space.

The smart features such as Alexa compatibility, Wi-Fi connectivity, and a variety of modes (including eco and sleep mode) make it user-friendly and convenient. These allow for easy adjustments and monitoring via smartphone or voice commands, catering to a tech-savvy audience. On the downside, it lacks a self-cleaning function, which some users might expect in a modern appliance. Additionally, while it's designed for efficient heating, it only works effectively in environments as cold as 5 degrees Fahrenheit. The DELL A Dual Zone Mini Split System is a strong contender for anyone needing an efficient, quiet, and flexible heating and cooling solution for multiple rooms, provided they are prepared for professional installation.

The Della Quad 4 Zone Mini Split System is designed to handle cooling and heating across multiple zones, offering coverage for areas up to 1750 square feet. This system is equipped with four indoor units, each tailored for separate rooms, allowing for customized climate control with individual controllers. It boasts a strong cooling capacity of 36,000 BTU and a solid SEER rating of 19, which points to significant energy efficiency, potentially saving up to 30% on power usage.

One standout feature is its quiet operation, producing sound levels as low as 41 dB, making it a good fit for those sensitive to noise. It is also outfitted with smart features, including compatibility with Alexa and WiFi control, which adds convenience for tech-friendly users.

However, the product does require professional installation, which can be a downside for those looking for a DIY option. The lack of a self-cleaning function could mean additional maintenance efforts over time. Despite these drawbacks, it offers a robust set of modes and features like turbo function and eco energy saving, which may appeal to users seeking versatility.

While it provides ample coverage and energy efficiency, its requirement for professional installation and lack of some self-maintenance features might be a consideration for potential buyers. The Della Quad 4 Zone is an effective choice for those who value energy efficiency, smart features, and quiet operation in a multi-zone mini-split system.

The Della ODU Tri 3 Zone mini-split system offers flexible climate control for homes needing cooling and heating across multiple areas. It features three zones, each with its own indoor air handler, providing individual temperature management for comfort. With a 27,000 BTU capacity, distributed as 9,000 BTU for two zones and 18,000 BTU for the third, it efficiently covers up to 1,800 sq ft, making it suitable for medium to large spaces. The system boasts a SEER rating of 19, indicating strong energy efficiency that can lead to cost savings on energy bills.

Designed with DC Inverter technology, it promises up to 30% savings in power consumption, which is a significant advantage for eco-conscious users. This unit operates quietly at 50 dBa, ensuring minimal noise disruption, an important benefit for maintaining a peaceful home environment. However, installation requires professional handling, as it's not a DIY-friendly system, and involves specific processes like line-set vacuuming and freon level adjustments if modifications are made.

On the technological front, the system is Alexa and WiFi compatible, allowing convenient control via smart devices. It includes various modes for tailored comfort, such as sleep, turbo, and eco energy-saving modes. Despite lacking a self-cleaning function, it offers a comprehensive feature set for air comfort control. While it might not be the top choice for those looking for easy installation, it’s an excellent option for users seeking a robust, energy-efficient, and quiet multi-zone AC system with smart capabilities.