Multi head mini split heat pumps offer a flexible and efficient way to control temperatures in multiple rooms independently. This technology provides tailored comfort, energy savings, and convenient smart features for modern homes and businesses. Below is a comparison table summarizing five top-rated multi head mini split systems available on Amazon, including details about BTU capacity, zones, SEER ratings, and smart capabilities.
Product | BTU / Zones | SEER Rating | Smart Features | Coverage |
---|---|---|---|---|
COSTWAY 18k Dual 2 Zone Mini Split | 9000 + 12000 BTU, 2 Zones | 22 SEER2 | WiFi Enabled | Not Specified |
Senville SENA-30HF/T Tri Zone Mini Split | 28000 BTU, 3 Zones | Not Specified | Works with Alexa | Varies by indoor units |
Della 27K BTU Tri 3 Zone Mini Split | 9000 + 9000 + 9000 BTU, 3 Zones | 19 SEER2 | WiFi, Alexa Compatible | Up to 1200 Sq. Ft |
Della 18K BTU Dual Zone Mini Split | 12000 + 12000 BTU, 2 Zones | 19 SEER2 | WiFi, Alexa Compatible | Up to 1100 Sq. Ft |
Della 27K BTU Dual Zone Mini Split | 18000 + 18000 BTU, 2 Zones | 19 SEER2 | WiFi, Alexa Compatible | Up to 2000 Sq. Ft |
COSTWAY 18k Dual 2 Zone Mini Split Air Conditioner

The COSTWAY 18k mini split offers an innovative multi-room cooling solution with two indoor units delivering 9000 BTU and 12000 BTU cooling power, adjustable independently for each zone. It features a robust chassis heating function keeping the outdoor unit operational in extreme climates ranging from -13℉ to 125℉.
This energy-star certified system uses R32 refrigerant, reducing environmental impact due to lower Global Warming Potential (GWP). It boasts a high efficiency rating of 22 SEER2 and a 10 HSPF2 for heating performance, driven by inverter technology.
Versatility is enhanced by six operation modes including auto, cool, heat, dry, fan, and sleep, along with 5 wind speeds and swing function for widespread airflow. The system is ETL and AHRI certified, ensuring compliance with safety and performance standards.
Senville SENA-30HF/T Tri Zone Mini Split Air Conditioner Heat Pump

This tri-zone mini split system is designed to serve multiple rooms with one outdoor unit and three indoor air handlers. It delivers a total of 28,000 BTU with individualized temperature control for each zone.
User convenience is boosted by Alexa compatibility, allowing voice and app control from anywhere. The smart routines can help optimize temperature management and achieve energy savings up to 40%.
Built to handle both residential and commercial needs, the Senville model is suitable for bedrooms, living rooms, additions, and even business spaces like stores and warehouses. Its robust design ensures dependable long-term performance.
Della 27K BTU ODU Tri 3 Zone Multi Zone Mini Split

This energy efficient Della system uses DC inverter technology to provide up to 30% power savings with ETL and AHRI certifications. It consists of three indoor units, each rated 9000 BTU, ideal for cooling and heating up to 1200 Sq. Ft.
Its multi-zone controller supports individual temperature adjustments per room and the system works well in cold climates down to 5℉. The package includes 16-foot copper line sets and drain pipes for ease of installation.
Although the self-cleaning function is displayed on the controller, it is non-operational in this model. Connectivity is enhanced with WiFi and Alexa compatibility for remote management.
Della 18K BTU Dual Zone Mini Split Air Conditioner and Heat Pump

The Della 2 zone mini split unit provides 12,000 BTU for each of the two indoor air handlers. It efficiently cools and heats areas up to 1100 Sq. Ft, using inverter technology that saves up to 30% energy compared to traditional systems.
Designed for ductless installation, this ETL and AHRI certified system operates down to 5℉ outdoor temperatures. The dual indoor units each have separate controllers allowing independent environmental control.
Installation kits and copper pipe sets are included for straightforward setup. The system supports Alexa and WiFi connectivity for enhanced smart control options.
Della 27K BTU Dual Zone Mini Split Air Conditioner Heat Pump

This Della 2 zone mini split delivers two powerful 18,000 BTU indoor units with high efficiency (19 SEER2) energy-saving inverter technology. It supports heating and cooling for up to 2000 Sq. Ft., suitable for larger home spaces or business applications.
Like other Della models, it is ETL and AHRI certified with compatibility for Alexa and WiFi, enabling remote temperature management. It performs reliably in cold climates with outdoor operation down to 5℉.
Installation components such as 16ft copper pipes and drain kits are included. Each indoor unit offers independent climate control ensuring customized comfort for multi-room setups.
Buying Guide for Multi Head Mini Split Heat Pumps
Zone Capacity and BTU Size
Determine the number of rooms you want to control independently and estimate the required BTU capacity based on room size. Larger spaces need higher BTU units. Multi head systems come with multiple indoor air handlers, so choose a setup that matches your layout and cooling/heating needs.
Energy Efficiency Ratings
Look for the SEER (Seasonal Energy Efficiency Ratio) and HSPF (Heating Seasonal Performance Factor) ratings. Higher numbers indicate better energy savings and operational cost reductions. Energy Star certification also signals cleaner, eco-friendlier technology.
Smart Connectivity
WiFi-enabled units with smart home integration, such as Alexa compatibility, improve convenience. You can control temperature settings remotely, set schedules, and optimize energy use. Confirm if a system supports your preferred smart home platforms.
Operating Temperature Range
Consider the climate where the system will be installed. Some mini split heat pumps are rated to operate in very cold weather (below 0°F), which is essential for reliable heating in cold regions.
Installation and Accessories
Check if installation kits are included, such as copper piping, drain lines, and communication cables. Professional installation is recommended for optimal performance, although some kits support easier setup for DIY enthusiasts.
Refrigerant Type
The refrigerant impacts efficiency and environmental safety. Modern systems use R32 or R410A refrigerants with lower Global Warming Potential. Verify which refrigerant your chosen model uses to support sustainability goals.
Warranty and Certifications
Purchase units that come with good warranty coverage and certifications like ETL and AHRI. These ensure quality, safety, and verified performance standards from trusted testing labs.