10 Best Two Zone Mini Split Air Conditioners 2026 in the United States

The Della 18K BTU Dual Zone Mini Split Air Conditioner is a solid choice for those needing efficient cooling and heating in multiple rooms. It boasts a respectable 20 SEER2 rating, making it energy efficient, which is great for keeping energy bills low. With the ability to cool or heat spaces up to 800 square feet, it effectively serves two rooms, thanks to its two 9,000 BTU indoor units. Users will appreciate the smart features, such as WiFi connectivity and Alexa compatibility, which allow for convenient control and scheduling.

Noise level is another strength, operating quietly at just 41 dBa—ideal for bedrooms or living areas where noise can be disruptive. The unit's multiple fan speeds, eco mode, and 24-hour timer provide added comfort and flexibility.

It’s important to consider the installation requirements. This system mandates professional installation, which may be a downside for those looking for a DIY option, and the installation process includes vacuuming the line set, which could complicate things for some. Additionally, while it provides a good range of features, the absence of a self-cleaning function, despite having that option on the display, might be seen as a limitation.

The Daikin 18,000 BTU 2-Zone Mini Split is an excellent choice for reliable cooling and heating in two separate spaces, such as a living room and bedroom. It features impressive energy efficiency with 21 SEER2 and 10 HSPF2 ratings, helping to reduce electricity costs. The system uses environmentally friendly R-32 refrigerant and operates quietly at just 24 decibels, minimizing disruption to daily activities or sleep. It covers approximately 1100 square feet and performs well in both hot and cold climates, with cooling effective from 14°F up to 115°F and heating down to 5°F.

Installation includes a 15 ft. Maxwell kit and wall brackets, but mini splits generally require professional installation and careful planning for placement, making it unsuitable as a simple DIY project. The system’s smart features enhance convenience, allowing temperature control via an app or voice commands using Alexa or Google Home. Additional benefits include a titanium air purifying filter and humidity control to improve indoor air quality.

Although it lacks a formal Energy Star rating, the high SEER score confirms its energy efficiency. The 12-year manufacturer warranty provides assurance of durability. This Daikin model is ideal for homeowners seeking customizable comfort in multiple rooms without ductwork, especially in renovations or spaces where traditional AC is impractical. For those prioritizing quiet, efficient, and smart multi-zone climate control with professional installation, this system is a strong option.

The Della 35K BTU two-zone mini split is a solid choice if you need efficient cooling and heating for up to 2,500 square feet spread across two rooms. With 19 SEER2 efficiency, it promises good energy savings, which is great for keeping utility costs down. The two indoor units provide separate temperature controls for each room, offering personalized comfort—a big plus for families or shared spaces. It uses a ductless heat pump system that works efficiently even in cold weather down to about 5°F, so it can handle year-round climate needs.

Noise-wise, it operates quietly at around 36 dBa, which should keep bedrooms and living areas peaceful. On the smart features side, it supports Wi-Fi and Alexa, allowing easy remote control and scheduling, along with modes like sleep, eco energy saving, and turbo cooling/heating.

Installation requires professional help since it’s not a DIY setup, and you’ll need to deal with line-set vacuuming. While it comes with 16-foot copper pipes and installation kits, the complexity and weight (230 pounds) mean preparing for a proper install is essential. One downside is the lack of a true self-cleaning function, even though the display shows an option for it, so you might have to maintain it more manually than some competitors. This mini split suits those wanting a powerful, efficient, and smart two-zone system for medium to large spaces, but be ready for professional installation and regular upkeep. If you value quiet operation and strong performance with modern controls, the Della unit covers those bases well.