Choosing the right 3 head mini split system is key to achieving efficient climate control across multiple rooms. These multi-zone mini splits come with separate indoor air handlers for individual temperature settings, perfect for homes and businesses needing customizable comfort. Below is a summary of the top 3 head mini split systems currently available, with details about their cooling capacity, energy efficiency, and key features.
Product | Cooling Capacity (BTU) | Energy Efficiency | Features |
---|---|---|---|
Della ODU Tri 3 Zone 27K BTU Mini Split | 9K + 9K + 18K | 19 SEER2 | Alexa & Wifi compatible, ultra quiet, pre-charged heat pump |
ROVSUN 3 Zone 28000 BTU Mini Split AC/Heating | 9K + 9K + 9K | 20 SEER2 | All-season AC & heat pump, 25ft line set, energy-saving inverter tech |
Cooper & Hunter 28,000 BTU Tri 3-Zone Mini Split AC | 12K + 12K + 12K | 23.8 SEER | Smartphone compatible, whisper-quiet, 25ft installation kits included |
Daikin 24,000 BTU 3-Zone Mini Split R32 Heat Pump | 9K + 12K + 12K | 21 SEER2 | R-32 refrigerant, 12-year warranty, energy-efficient all-season comfort |
ROVSUN 28000 BTU Tri Zone WIFI Mini Split System | 9K + 9K + 12K | 20 SEER2 | WiFi enabled, heat pump, multi-function modes, energy-efficient inverter |
Della ODU Tri 3 Zone 27K BTU Mini Split AC

The Della ODU Tri 3 Zone 27K BTU system features three indoor air handlers with capacities of 9,000 BTU, 9,000 BTU, and 18,000 BTU respectively. It provides individualized temperature control for up to 1800 sq. ft. Equipped with a heat pump capable of operating in temperatures down to -4℉ and advanced DC inverter technology, it offers up to 30% energy savings. The unit operates quietly at 50 dBa and comes pre-charged with refrigerant, greatly simplifying installation needs.
This system is ETL and AHRI certified for quality assurance. The package includes installation kits, copper pipe line set, and drain pipes for all three units. Note that professional installation is required since vacuuming the line-set and freon adjustment may be needed for optimal performance.
ROVSUN 3 Zone 28000 BTU Mini Split AC/Heating System

The ROVSUN 3 Zone 28000 BTU mini split is designed for year-round use with cooling, heating, fan, and dehumidifier modes. It includes three 9,000 BTU indoor units and a single outdoor condenser, each with its own controller for independent temperature regulation.
This system runs on inverter technology and features a heat pump that can operate in ambient temperatures from -13℉ to 131℉, making it suitable for a variety of climates. Additional features include automatic defrost, self-cleaning, and sleep/mute modes. ETL and AHRI certifications confirm its reliability and energy-saving credentials of up to 30% compared to traditional systems.
Cooper & Hunter 28,000 BTU Tri 3-Zone Mini Split AC & Heat Pump

The Cooper & Hunter 28,000 BTU Tri-Zone mini split offers three identical 12,000 BTU wall-mounted indoor air handlers paired with a multi-zone inverter condenser rated at 24.6 SEER2 for high efficiency. The system works efficiently in heating mode even at outdoor temperatures as low as -13℉.
With smartphone compatibility (via an optional USB smart adapter), you can control each indoor unit remotely. Whisper technology ensures quiet operation, suitable for bedrooms and living areas. The included 25 ft installation kits cover copper line sets, communication wires, and drainage extensions, though professional installation is recommended.
Daikin 24,000 BTU 21 SEER2 3-Zone Mini Split Heat Pump

Daikin’s 24,000 BTU 3-Zone Mini Split system uses the R-32 refrigerant known for its low environmental impact and offers high energy efficiency ratings: 21 SEER2 and 10 HSPF2. The outdoor unit supports three indoor fan coils with 9,000 BTU, 12,000 BTU, and 12,000 BTU capacities respectively, each with independent room control.
This unit excels in both heating (up to 59.9°F) and cooling (down to 14°F) performance, suitable for varied climates. It comes with a 12-year manufacturer warranty and is AHRI certified. The system is ideal for spaces where conventional ductwork installation is impractical, such as sunrooms, garages, and attics.
ROVSUN 28000 BTU Tri Zone WIFI Mini Split AC/Heat Pump System

This ROVSUN 28000 BTU Tri Zone system provides three indoor air handlers (9,000 + 9,000 + 12,000 BTU) with WiFi connectivity for remote control via smartphone. It incorporates a heat pump capable of functioning in temperatures as low as -13℉.
Features include inverter technology supporting energy savings of up to 30%, self-diagnosis, dehumidifying capability, turbo mode for rapid cooling or heating, and several user-friendly modes like sleep and silent operation. The 25 ft pre-charged line set simplifies installation, though a professional installer should handle setup.
Buying Guide for Selecting the Best 3 Head Mini Split System
Cooling and Heating Capacity
Choose a mini split system with BTU ratings appropriate for the combined square footage of the rooms you intend to cool or heat. Multi-zone systems typically offer various sizes for each indoor unit, allowing customization based on room size and insulation.
Energy Efficiency Ratings
Look for products with high SEER2 (Seasonal Energy Efficiency Ratio) and HSPF (Heating Seasonal Performance Factor) ratings. Units with inverter technology generally provide up to 30% energy savings compared to traditional HVAC systems.
Installation Requirements
Professional installation is strongly recommended for multi-zone mini splits. It involves line-set vacuuming, refrigerant charging adjustments, and electrical wiring compliance. Some systems include detailed installation kits with pre-flared copper tubing and communication cables.
Noise Levels
Whisper-quiet operation, often below 50 dBa, is critical for bedrooms and living areas to ensure comfort without disruptive sound.
Smart Controls and Connectivity
Many modern mini splits come with WiFi connectivity or smartphone compatibility enabling remote temperature control, scheduling, and monitoring for convenience and energy management.
Climate Suitability
Make sure the heat pump can operate effectively in your climate’s temperature range, especially if you live in areas with very cold winters or hot summers.
Warranty and Certifications
Select units that are AHRI and ETL certified, ensuring compliance with industry standards. Extended manufacturer warranties provide peace of mind on your investment.