When choosing a 2 unit mini split system for your home or office, energy efficiency, cooling capacity, and individual room control are key factors. These ductless systems offer tailored climate comfort while saving energy compared to traditional HVAC. Below is a summary comparison of top options available that combine powerful heating and cooling, WiFi connectivity, and energy star certifications for reliable year-round use.
| Model | BTU Capacity | Energy Efficiency | Coverage Area | Special Features |
|---|---|---|---|---|
| COSTWAY 18k Dual 2 Zone Mini Split | 9000 + 12000 BTU | 22 SEER2, Energy Star | Multi-room adjustable zones | WiFi enabled, R32 refrigerant, 6 modes |
| DELLA 18K BTU ODU 2 Dual Zone Mini Split | 9000 + 9000 BTU | 19 SEER2, ETL, AHRI | Up to 800 sq ft | Alexa compatible, pre-charged, individual controls |
| DELLA 27K BTU ODU 2 Dual Zone Mini Split | 12000 + 18000 BTU | 19 SEER2, ETL, AHRI | Up to 1550 sq ft | WiFi, Alexa compatible, large coverage |
| ROVSUN 2 Zone 20000 BTU Mini Split AC/Heating | 9000 + 9000 BTU | 20 SEER2, ETL, AHRI | Multi-room use | Heat pump, inverter, advanced quiet mode |
| COSTWAY 12000BTU Mini Split AC & Heater | 12000 BTU (Single unit) | 20 SEER2 | Up to 750 sq ft | Inverter tech, multiple modes, quiet operation |
Content Navigation
- COSTWAY 18k Dual 2 Zone Mini Split Air Conditioner
- DELLA 18K BTU ODU 2 Dual Zone Wifi Mini Split System
- DELLA 27K BTU Dual Zone Wifi Mini Split AC Heat Pump
- ROVSUN 2 Zone 20000 BTU Mini Split AC/Heating System
- COSTWAY 12000BTU Mini Split Air Conditioner & Heater
- Buying Guide: Key Factors When Choosing A 2 Unit Mini Split System
COSTWAY 18k Dual 2 Zone Mini Split Air Conditioner
This dual-zone mini split system from COSTWAY offers 18,000 BTU divided into two units: one 9000 BTU and one 12000 BTU, allowing independent temperature control for two rooms. Certified with Energy Star and featuring an impressive 22 SEER2 rating, it uses eco-friendly R32 refrigerant with a lower global warming potential. The system supports six operating modes including cool, heat, dry, and sleep, and five fan speeds to customize comfort. Its inverter technology reduces energy consumption, while its durable chassis heating maintains outdoor unit function in freezing temperatures as low as -13°F. WiFi connectivity allows remote control for convenience.
DELLA 18K BTU ODU 2 Dual Zone Wifi Mini Split System
This Della mini split system features two indoor air handlers of 9000 BTU each, capable of cooling or heating separate rooms up to 800 square feet combined. The unit is ETL and AHRI certified with a 19 SEER2 rating, promising energy-efficient operation. Equipped with a heat pump function usable in temperatures as low as -4°F, this system includes pre-charged copper tubing and installation kits for ease of setup. WiFi connectivity enables integration with Alexa for voice commands, allowing seamless climate control of different zones.
DELLA 27K BTU Dual Zone Wifi Mini Split AC Heat Pump
Providing 27,000 BTU through two indoor units of 12000 and 18000 BTU, this Della mini split offers extensive cooling and heating coverage up to 1550 sq ft. Its 19 SEER2 energy efficiency and ETL/AHRI certifications assure quality and cost savings. It supports WiFi control and Alexa integration for smart home compatibility. The system can operate efficiently in outdoor temperatures down to -4°F, with included copper piping and installation accessories to streamline the setup process.
ROVSUN 2 Zone 20000 BTU Mini Split AC/Heating System
The ROVSUN dual-zone mini split system combines powerful heating and cooling with a 20 SEER2 rating for energy savings. It includes two 9000 BTU indoor units with individual controllers and a single 20,000 BTU outdoor condenser. Suitable for multiple room applications, its inverter technology supports operation in ambient temperatures ranging from -13°F to 131°F. Additional features include self-diagnosis, auto defrost, sleep mode, and a turbo function. This model is ETL and AHRI listed, ensuring reliable performance for residential or commercial spaces.
COSTWAY 12000BTU Mini Split Air Conditioner & Heater
This COSTWAY mini split features a 12000 BTU inverter system designed for rooms up to 750 square feet. It provides both cooling and heating modes, supported by an energy-efficient compressor and heat pump. The five operation modes include auto, cool, dry, heat, and fan with four fan speeds to match preferences. Remote control operation and a smart timer enhance convenience. Its quiet performance and ECO mode conserve energy while promoting comfort year-round.
Buying Guide: Key Factors When Choosing A 2 Unit Mini Split System
Selecting the right 2 unit mini split system depends on several factors tailored to your space and usage. Consider the following when making your decision:
Cooling and Heating Capacity
Choose units with BTU ratings appropriate for each room’s size. Oversized units waste energy, while undersized units struggle to maintain temperatures. Typical coverage ranges from 400 to 1000+ sq ft per indoor unit depending on BTU.
Energy Efficiency
Look for SEER2 ratings and certifications like Energy Star, ETL, and AHRI to ensure energy-saving operation. Higher SEER2 values imply better efficiency, reducing electricity costs.
Climate and Temperature Range
If you live in cold climates, verify the heat pump’s ability to function in low outdoor temperatures (e.g., -13℉ to -4℉ range). Some models specifically offer resilient chassis heating or inverter tech for extreme weather.
Multi-Zone Control
Each 2 unit mini split system offers separate controllers or WiFi apps to allow individualized temperature settings for each indoor unit, optimizing comfort and energy usage in different rooms.
Installation and Accessories
Most units come with pre-charged copper tubing, line sets, and installation kits. Check the included pipe length and sizes to determine if they suit your installation needs or require additional parts.
Smart Features and Connectivity
WiFi enabled units integrated with Alexa or Google Home improve ease of control with voice commands and mobile apps. Some systems also include modes like self-cleaning, sleep, timer, and air purification functions.
Noise Levels
Consider models specifying low-noise operation or “mute mode” for bedroom or office installations where quiet is essential.
By carefully assessing these factors and matching them with your specific requirements and space constraints, you can select an efficient and versatile two-unit mini split system to optimize your home’s comfort year-round.