Choosing the right multi split air conditioner can significantly improve your home comfort by allowing independent temperature control in multiple rooms. These systems are energy-efficient, easy to install, and offer flexible zoning solutions. Below is a summary of top-rated multi split air conditioners available on Amazon, each providing unique features for cooling and heating needs in different sized spaces.
| Product | BTU Capacity | Zones | Energy Rating | Key Features |
|---|---|---|---|---|
| COSTWAY 18k Dual 2 Zone Mini Split AC | 12,000 + 12,000 BTU | 2 | 22 SEER2 | WiFi enabled, Energy Star, inverter technology |
| Della 36K BTU Quad 4 Zone Mini Split | 9K + 9K + 12K + 18K BTU | 4 | 19 SEER2 | Alexa compatible, large coverage, pre-charged |
| Della 27K BTU Tri 3 Zone Mini Split | 9,000 + 9,000 + 9,000 BTU | 3 | 19 SEER2 | Alexa compatible, multiple functions, energy efficient |
| ROVSUN 28000 BTU Tri Zone WIFI Mini Split | 9,000 + 9,000 + 12,000 BTU | 3 | 20 SEER2 | Heat pump, inverter, self-diagnosis, quiet mode |
| COSTWAY 30k Quad 4 Zone Mini Split AC | 9K + 9K + 9K + 18K BTU | 4 | 23 SEER2 | WiFi enabled, Energy Star, lower GWP refrigerant |
COSTWAY 18k Dual 2 Zone Mini Split Air Conditioner
The COSTWAY 18k Dual 2 Zone Mini Split Air Conditioner offers a multi-room cooling solution with two indoor units each delivering 12,000 BTU, perfect for different corners of your home. Its chassis heating function supports outdoor unit operation across a wide climate range (-13℉ to 125℉). It boasts a 22 SEER2 rating and utilizes R32 refrigerant to promote a greener lifestyle with lower global warming potential (GWP). The unit includes six functioning modes—auto, cool, heat, dry, fan, and sleep—with five adjustable fan speeds for customized comfort. Additional features like auto swing and health mode enhance its daily usability while maintaining high energy efficiency certified by ETL and AHRI.
Della 36K BTU Quad 4 Zone Mini Split Air Conditioner
Ideal for large homes or spaces up to 2,350 sq. ft., the Della 36K BTU Quad 4 Zone Mini Split comes with four indoor units ranging from 9,000 to 18,000 BTU, each with its own controller. It supports Alexa voice commands, allowing for hands-free temperature adjustments. Designed for energy efficiency, it has a 19 SEER2 rating and uses DC inverter technology to reduce power consumption by approximately 30%. The system is pre-charged and includes all installation components, providing a complete cooling and heating solution for multiple rooms that experience different climate needs.
Della 27K BTU ODU Tri 3 Zone Mini Split Air Conditioner
The Della 27K BTU Tri Zone Mini Split efficiently cools and heats up to 1,200 sq. ft. with three indoor units each producing 9,000 BTU. This ductless system features DC inverter technology to save up to 30% in energy costs and operates in low temperatures as low as -4℉. Compatible with Alexa for remote voice control, each unit’s temperature can be managed independently, making it a convenient solution for zoned climate control. The mini split set includes pre-charged components and installation kits for a streamlined setup.
ROVSUN 28000 BTU Tri Zone WIFI Mini Split AC/Heating System
The ROVSUN 28000 BTU Tri Zone Mini Split combines powerful cooling and heating with advanced features. It includes an outdoor condenser paired with three indoor air handlers (9,000 + 9,000 + 12,000 BTU) each with individual controllers, supporting ideal climate control for multiple rooms. The system includes a heat pump that operates efficiently in ambient temperatures as low as -13℉, features like auto defrost, self-diagnosis, silent mode, and turbo speed. Rated 20 SEER2, it promises approximately 30% energy savings and is ETL and AHRI certified, suitable for both residential and commercial use.
COSTWAY 30k Quad 4 Zone Mini Split Air Conditioner
The COSTWAY 30k Quad 4 Zone Mini Split is a high-capacity system tailored for comprehensive cooling and heating across four zones with total 30,000 BTU output. It offers 23 SEER2 efficiency, which results in significant energy savings and incorporates environmentally friendly R32 refrigerant with a low GWP. This ductless system adjusts temperature independently for each room, supports multiple modes, and features auto swing and sleep mode for enhanced user comfort. The chassis heating function protects the outdoor unit across extreme temperatures from -13℉ to 125℉.
Buying Guide for Multi Split Air Conditioners
When selecting a multi split air conditioner, consider the following factors to ensure you choose the best system for your needs:
1. Number of Zones and BTU Capacity
Identify how many rooms or zones you want to cool or heat. Each zone requires its own indoor unit with a designated BTU rating according to room size. Oversizing or undersizing can reduce efficiency and comfort.
2. Energy Efficiency Ratings
Look for units with high SEER2 (Seasonal Energy Efficiency Ratio) and HSPF2 (Heating Seasonal Performance Factor) ratings. Higher ratings signify better energy savings. Energy Star certifications ensure reliable efficiency standards.
3. Climate Compatibility
Consider the lowest operating temperature for heating functions. Units rated to work below freezing temperatures (-13℉ to -4℉) are better suited for cold climates.
4. Installation and Kit Components
Check if the system includes necessary installation kits—line sets, drain pipes, mounting brackets—to simplify setup. Pre-charged refrigerant systems facilitate faster installation.
5. Control Features
Systems with WiFi connectivity and compatibility with Alexa or Google Assistant offer convenient remote and voice control. Separate controllers per zone allow personalized comfort.
6. Environmental Impact
Eco-friendly refrigerants like R32 reduce the global warming potential (GWP). Look for systems designed with environmental considerations if sustainability is a priority.
7. Additional Functional Modes
Multi mode settings (cool, heat, dry, fan, sleep) and variable fan speeds provide flexibility. Features like auto swing and self-diagnosis enhance comfort and maintenance.