Dual mini split systems offer an excellent solution for efficient climate control across multiple rooms, with individual temperature settings and energy-saving technology. This article presents some of the best dual mini split systems available on Amazon, comparing their features, coverage, and energy efficiency. Whether you seek units with smart controls, high SEER ratings, or versatile heating performance, our selection covers a wide range of options tailored to different home sizes and needs.
| Product | BTU Capacity | Energy Efficiency (SEER2) | Coverage Area | Smart Features |
|---|---|---|---|---|
| DELLA 18K BTU ODU 2 Dual Zone | 2 x 9,000 BTU | 19 SEER2 | Up to 800 sq. ft. | WiFi, Alexa Compatible |
| COSTWAY 18k Dual 2 Zone Mini Split | 9,000 + 12,000 BTU | 22 SEER2 | Not Specified | WiFi Enabled |
| Hykolity 18000 BTU Dual Zone WiFi | 2 x 9,000 BTU | 20 SEER2 | Not Specified | WiFi Enabled |
| DELLA 27K BTU ODU 2 Dual Zone | 12,000 + 18,000 BTU | 19 SEER2 | Up to 1550 sq. ft. | WiFi, Alexa Compatible |
| ROVSUN 20000 BTU Dual Zone WiFi | 2 x 12,000 BTU | 20 SEER2 | Not Specified | WiFi Enabled |
Content Navigation
- DELLA 18K BTU Dual Zone Mini Split with WiFi Control
- COSTWAY 18k Dual 2 Zone Mini Split Air Conditioner Heat Pump
- Hykolity 18000 BTU Dual Zone WiFi Mini Split Air Conditioner & Heater
- DELLA 27K BTU Dual Zone Mini Split AC Heat Pump with WiFi
- ROVSUN 20000 BTU Dual Zone WiFi Mini Split AC and Heat Pump
- Buying Guide for Dual Mini Split Systems
DELLA 18K BTU Dual Zone Mini Split with WiFi Control
The DELLA 18K BTU Dual Zone Mini Split system features two indoor air handlers (9,000 BTU each) with individual controllers, allowing precise temperature control for separate rooms. It operates on a 208-230V system with a high 19 SEER2 rating, ensuring energy-efficient cooling and heating.
Using DC inverter technology combined with a heat pump capable of working in ambient temperatures as low as -4℉, this unit delivers up to 30% power savings compared to traditional systems. It is ETL listed and AHRI certified, with pre-charged copper pipes and installation kits included for convenience.
Note that this model does not support the self-cleaning function, despite the option appearing on the display. It is ideal for spaces up to 800 sq. ft., with each indoor unit covering approximately 400 sq. ft.
COSTWAY 18k Dual 2 Zone Mini Split Air Conditioner Heat Pump
The COSTWAY 18k Dual 2 Zone Mini Split offers 18,000 BTU capacity split between two zones with 9,000 and 12,000 BTU indoor units. The unit supports multi-room independent temperature settings and operates efficiently from -13℉ to 125℉, thanks to a chassis heating function protecting the outdoor unit.
Energy Star certified, this system boasts an impressive 22 SEER2 rating and uses eco-friendly R32 refrigerant with a Global Warming Potential (GWP) of only 675. Multiple modes and wind speeds provide adaptability, including auto, cool, heat, dry, fan, and sleep modes, along with auto-swing and health features for enhanced comfort.
Hykolity 18000 BTU Dual Zone WiFi Mini Split Air Conditioner & Heater
The Hykolity 18000 BTU Dual Zone Mini Split system comes with two 9,000 BTU indoor units paired with an 18,000 BTU outdoor condenser. Both indoor units include independent wall controllers, providing versatile zoned temperature control.
This ETL listed and AHRI certified system achieves a 20 SEER2 efficiency with an 8.5 HSPF2 heating performance rating. It incorporates variable frequency compressor technology for energy savings up to 30%. Its automatic defrost feature extends durability by enhancing energy efficiency during colder months.
The system supports cooling and heating across a temperature range from 61℉ to 88℉, with functions for dehumidifying, fan-only operation, and turbo speed for rapid temperature changes.
DELLA 27K BTU Dual Zone Mini Split AC Heat Pump with WiFi
The DELLA 27K BTU Dual Zone Mini Split system combines a 12,000 BTU and an 18,000 BTU indoor air handler with advanced WiFi and Alexa compatibility. It maintains the same 19 SEER2 rating but is designed for larger coverage up to 1550 sq. ft., making it suitable for bigger multi-room setups.
It supports heat pump operation down to -4℉ with ETL and AHRI certifications, incorporating DC inverter technology for up to 30% energy savings. Standard copper piping and installation kits come included, supporting easy setup.
Individual room temperature control offers precise comfort, with each indoor unit having its own remote and controller for separate zones.
ROVSUN 20000 BTU Dual Zone WiFi Mini Split AC and Heat Pump
ROVSUN’s 20000 BTU Dual Zone Mini Split system delivers 12,000 BTU cooling capacity per indoor unit paired with a 20,000 BTU outdoor condenser. This unit offers smart WiFi connectivity and comprehensive climate control with separate indoor remotes.
Designed for all-season comfort, it features an inverter heat pump that functions efficiently from -13℉ up to 131℉ ambient temperatures. Additional modes include auto defrost, iFEEL mode, and a 24-hour timer, along with silent and sleep modes to minimize noise.
It is ETL and AHRI certified, with a 20 SEER2 rating and innovative inverter technology providing energy savings up to 30%. The system includes a 25-foot copper line set, facilitating flexible installation.
Buying Guide for Dual Mini Split Systems
Cooling and Heating Capacity
Select a system with appropriate BTU ratings for the size of your rooms. Typically, each indoor unit covers between 300 to 1,000 sq. ft., depending on capacity. Dual-zone systems split the total BTU rating between two indoor units to cover multiple rooms efficiently.
Energy Efficiency Ratings
Look for high SEER2 (Seasonal Energy Efficiency Ratio) ratings coupled with HSPF (Heating Seasonal Performance Factor) for heating efficiency. Higher SEER2 ratings translate to reduced electricity use and operational costs. Energy Star certifications provide assurance of efficiency and environmental standards.
Smart Controls and Connectivity
WiFi-enabled units offer convenient control via mobile apps, voice assistants like Alexa and Google Assistant, and remote controls. Such features enhance user experience, allowing temperature adjustments from anywhere and integration with smart home systems.
Installation and Kit Inclusions
Choose systems that include pre-charged copper piping and installation kits to ease the setup process. Consider pipe length and compatibility with your home’s layout. Professional installation may be recommended for optimal performance and warranty compliance.
Operating Temperature Range
For homes in regions with extreme temperatures, ensure your mini split system supports operation in low or high ambient temperatures. Heat pumps capable of functioning below freezing (-13℉ or lower) guarantee reliable heating during cold winters.
Noise Levels
Check the decibel ratings for indoor units if quiet operation is important, particularly for bedrooms and workspaces. Many modern mini splits operate below 40 dB, offering peaceful comfort without disturbance.
Additional Features
Other aspects to consider include multi-mode capabilities (cooling, heating, dehumidification, fan), auto swing air distribution, self-diagnosis, and defrost functions. These contribute to system longevity and improve user convenience.