Looking Beyond the COSTWAY 28K Dual 2 Zone Mini Split? 6 Alternatives Worth a Look
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The costway 28k dual 2 zone mini split alternatives list helps you find units that match your specific needs. This model offers 28,000 BTU of cooling power with a 23 SEER2 efficiency rating. It supports dual-zone control for two rooms and includes Wi-Fi connectivity for smart management. The outdoor unit operates reliably in extreme temperatures, providing cooling up to 127℉ and heating down to -4℉.
You might look elsewhere if you need a different capacity, such as the 24,000 or 36,000 BTU options available in this lineup. Some buyers prefer brands like ROVSUN or DELLA for specific features like softer airflow or quieter operation. All 6 alternatives share core specifications with the original, including 23 SEER2 efficiency and dual-zone architecture. This ensures you get comparable performance while adjusting for size, brand preference, or unique functional requirements.
Our top pick: COSTWAY 28K Dual Zone 9000+12000 BTU.
Comparing key spec differences
COSTWAY 36k Dual Zone 23 SEER2
The COSTWAY 36k Dual Zone 23 SEER2 offers higher cooling capacity than the original 28,000 BTU model. It shares the same 23 SEER2 efficiency and dual-zone Wi-Fi control. The outdoor unit is larger, measuring 41.2 inches wide and 31.8 inches tall. You need 208-230V power for this unit. Choose this if you need more cooling power for larger spaces. It sacrifices compactness for increased BTU output. The smart features remain consistent with the original model. This is a premium option for those needing extra capacity.
COSTWAY 30k Dual Zone 23 SEER2 Mini Split
The COSTWAY 30k Dual Zone 23 SEER2 Mini Split provides 30,000 BTU of cooling, which is slightly more than the original 28,000 BTU. It also uses a 23 SEER2 efficiency rating and dual-zone Wi-Fi control. The outdoor unit dimensions match the 36k model, measuring 41.2 inches wide. You require 208-230V power for installation. This unit is ideal for large spaces needing strong cooling. It gives up the compact size of the original for higher output. Smart connectivity and efficiency ratings are identical to the base model. Pick this if you need a middle ground in capacity.
COSTWAY 24k Dual Zone 23 SEER2 Mini Split
The COSTWAY 24k Dual Zone 23 SEER2 Mini Split has lower cooling capacity at 24,000 BTU compared to the original 28,000 BTU. It maintains the same 23 SEER2 efficiency and dual-zone Wi-Fi control. The outdoor unit is smaller, measuring 34.7 inches wide and 21.9 inches tall. You still need 208-230V power. This option is best for smaller spaces where 28,000 BTU is excessive. It sacrifices cooling power for a more compact footprint. Smart features remain the same. Choose this if you want efficient cooling for two rooms without overcooling. It is a budget-friendly alternative with similar smart capabilities.
ROVSUN 20K BTU Dual Zone Mini Split
The ROVSUN 20K BTU Dual Zone Mini Split offers 20,000 BTU of cooling, which is significantly less than the original 28,000 BTU. It shares the 23 SEER2 efficiency rating and dual-zone Wi-Fi control. The outdoor unit measures 33.5 inches wide and 23.7 inches tall. You need 230V power for this unit. This model is suitable for smaller dual-room setups. It gives up substantial cooling capacity for a more compact system. Smart control and efficiency are comparable to the original. Select this if you need less cooling power but want similar smart features. It is a solid choice for medium-sized spaces.
ROVSUN 20000 BTU Dual Zone Mini Split
The ROVSUN 20000 BTU Dual Zone Mini Split provides 20,000 BTU of cooling, lower than the original 28,000 BTU. It features a 23 SEER2 efficiency rating and dual-zone control. The outdoor unit dimensions are 33.5 inches wide and 23.7 inches tall. You require 230V power. This unit is designed for quiet operation in two medium-sized rooms. It sacrifices cooling power for a quieter, more compact design. Smart control details are not specified in the data. Choose this if you prioritize quiet performance over high capacity. It is a good option for spaces where noise is a concern.
DELLA Optima 23K BTU Soft Airflow
The DELLA Optima 23K BTU Soft Airflow is a single-zone unit with 23,000 BTU of cooling, less than the original dual-zone 28,000 BTU. It offers a 23 SEER2 efficiency rating and Wi-Fi control with Alexa support. The indoor unit is 43.2 inches wide and 13.1 inches tall. You need 230V power. This model is ideal for single rooms needing gentle airflow. It gives up dual-zone capability for a specialized soft airflow feature. Smart control includes Alexa integration. Pick this if you need cooling for one room with voice control. It is not suitable for multi-room temperature management.
Quick picks
Our 7 picks
COSTWAY 28K Dual Zone 9000+12000 BTU
Best for: Larger rooms needing 28,000 BTU cooling power
- Cooling Capacity
- 28000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 208/230V
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa, Google Assistant
View on Amazon: COSTWAY 28K Dual Zone 9000+12000 BTU Affiliate link
This dual zone mini split delivers 28,000 BTU of cooling across two rooms. It pairs 9,000 BTU with 12,000 BTU indoor units for flexible comfort. The system operates at 23 SEER2 efficiency and connects via Wi-Fi to Alexa and Google Assistant. It handles extreme heat up to 127°F and cold down to -4°F. You get 4D swing, 28 dB noise levels, and remote control for daily use.
Pros
- 28,000 BTU total cooling capacity for larger spaces
- 23 SEER2 efficiency rating for energy savings
- Wi-Fi connectivity with Alexa and Google Assistant support
- Operates in temperatures from -4°F to 127°F
Cons
- Lower SEER2 rating than the Albott 25 SEER2 alternative
- 208/230V voltage requires compatible electrical supply
- Heavier build compared to smaller 18K or 20K BTU units
Good fit if
- You need higher cooling power for larger rooms
- You want smart home integration with voice assistants
- You live in an area with extreme weather conditions
Skip if
- You require a 115V standard household plug
- You only need to cool a single small room
- You prioritize the highest possible efficiency rating over capacity
Verdict: COSTWAY 28K Dual Zone Mini Split suits buyers who need substantial cooling power for multiple rooms and want smart features. It is a solid choice for larger spaces where 28,000 BTU is necessary.
COSTWAY 36k Dual Zone 23 SEER2
Best for: large spaces with 208-230V power
- Cooling Capacity
- 36,000 BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wifi Enabled
View on Amazon: COSTWAY 36k Dual Zone 23 SEER2 Affiliate link
This COSTWAY unit delivers 36,000 BTU of cooling across two zones (9,000 and 12,000 BTU). It runs on 208-230V power and achieves a 23 SEER2 efficiency rating. The system uses R32 refrigerant with a low GWP of 675. You can control it via Wi-Fi or the included remote. It includes a chassis heating function for operation in temperatures as low as -13°F.
Pros
- High 36,000 BTU total cooling capacity for larger spaces
- 23 SEER2 efficiency rating for energy savings
- Wi-Fi smart control for remote management
- Chassis heating supports operation down to -13°F
Cons
- Requires 208-230V electrical connection, not standard 110V
- Outdoor unit dimensions are large at 41.2 inches wide
- No 24-hour timer mentioned in specifications
Good fit if
- You need high cooling capacity for a large open area
- You have 208-230V electrical wiring available
- You want Wi-Fi control for smart home integration
Skip if
- You only have standard 110V outlets
- You need a compact outdoor unit for tight spaces
- You require a 24-hour timer function
Verdict: COSTWAY 36k Dual Zone 23 SEER2 suits users with 208-230V wiring who need strong cooling for large zones. It offers high efficiency and smart control but requires space for its large outdoor unit.
COSTWAY 30k Dual Zone 23 SEER2 Mini Split
Best for: Large spaces with 208-230V power
- Cooling Capacity
- 30000 BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Control
- Wi-Fi
View on Amazon: COSTWAY 30k Dual Zone 23 SEER2 Mini Split Affiliate link
This COSTWAY 30k dual zone mini split delivers 30,000 BTU of cooling across two rooms with a 23 SEER2 rating. It uses R32 refrigerant and operates on 208-230V power. Wi-Fi control and a 24-hour timer add convenience. The outdoor unit handles temperatures from -13°F to 125°F. It suits larger spaces needing flexible zone control.
Pros
- 23 SEER2 efficiency rating
- 30,000 BTU total cooling capacity
- Wi-Fi enabled smart control
- R32 refrigerant with low GWP
- 208-230V voltage compatibility
Cons
- Higher voltage requirement than standard 115V units
- Larger outdoor unit dimensions
- No app mentioned in data
Good fit if
- You need 30,000 BTU for larger rooms
- You have 208-230V electrical supply
- You want Wi-Fi remote control
Skip if
- You only have 115V outlets
- You need a single zone system
- You prefer a smaller outdoor unit
Verdict: COSTWAY 30k Dual Zone 23 SEER2 Mini Split fits homes with 208-230V power and large spaces needing 30,000 BTU. It offers strong efficiency and smart control for two zones.
COSTWAY 24k Dual Zone 23 SEER2 Mini Split
Best for: Two rooms with different cooling needs
- Cooling Capacity
- 24000 BTU (9000 BTU+ 12000 BTU)
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wifi Enabled, Smartphone
View on Amazon: COSTWAY 24k Dual Zone 23 SEER2 Mini Split Affiliate link
This COSTWAY unit combines a 9,000 BTU indoor head with a 12,000 BTU head for a total of 24,000 BTU cooling. It operates at 23 SEER2 efficiency using R32 refrigerant. The system supports Wi-Fi control and functions in temperatures from -13°F to 125°F. It suits homes needing flexible zone management with energy-conscious operation.
Pros
- 23 SEER2 efficiency rating for lower energy use
- Dual zone configuration with 9,000 and 12,000 BTU heads
- Wi-Fi enabled for smartphone control
- Operates in extreme climates from -13°F to 125°F
- Uses R32 refrigerant with low global warming potential
Cons
- Requires 208-230V electrical connection, not standard 120V
- Heavier and bulkier outdoor unit than single-zone models
- No dedicated app mentioned, relies on Wi-Fi remote control
Good fit if
- You need to cool two rooms of different sizes
- You have a 208-230V electrical setup available
- You want high efficiency with 23 SEER2 rating
Skip if
- You only have standard 120V outlets
- You need to control the system via a dedicated mobile app
- You require a single-zone setup for one room
Verdict: COSTWAY 24k Dual Zone 23 SEER2 Mini Split fits buyers who need separate temperature control for two rooms with different cooling needs. It is ideal for spaces where a single large unit would be inefficient or where 208-230V power is already installed.
ROVSUN 20K BTU Dual Zone Mini Split
Best for: Dual-room smart climate control
- Cooling Capacity
- 20000 BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Number of Zones
- Dual Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- WIFI, APP, Alexa, Google Assistant
View on Amazon: ROVSUN 20K BTU Dual Zone Mini Split Affiliate link
The ROVSUN 20000 BTU Dual Zone system pairs a 20,000 BTU outdoor condenser with two 9,000 BTU indoor handlers. It delivers 23 SEER2 efficiency and includes Wi-Fi connectivity for app and voice control via Alexa or Google Assistant. This unit suits you if you need independent climate management for two separate rooms with smart features and reliable heating down to -4°F.
Pros
- 23 SEER2 efficiency rating for reduced energy use
- Dual zone design with individual 9,000 BTU handlers
- Wi-Fi, app, and voice control compatibility
- Heat pump operation down to -4°F ambient temperature
Cons
- Heavier build at 149 pounds
- Larger outdoor unit dimensions
- Requires professional HVAC installation
Good fit if
- You need smart control for two separate rooms
- You want high efficiency with 23 SEER2
- You require heating in cold climates down to -4°F
Skip if
- You prefer a lighter, more compact outdoor unit
- You want a single zone configuration
- You need a system that does not require professional installation
Verdict: ROVSUN 20K BTU Dual Zone Mini Split fits you if you need smart, efficient cooling and heating for two distinct spaces. It offers reliable performance in colder weather and convenient app control, making it a solid option for dual-room climate management.
ROVSUN 20000 BTU Dual Zone Mini Split
Best for: Quiet two-room cooling
- Cooling Capacity
- 20000 BTU (12K/12K)
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Mounting Type
- Wall Mount
View on Amazon: ROVSUN 20000 BTU Dual Zone Mini Split Affiliate link
This ROVSUN dual zone system delivers 20,000 BTU of cooling, split as 12,000 BTU per indoor unit. It operates at 23 SEER2 and includes a heat pump with an ambient temperature range of -4°F to 122°F. The unit mounts on the wall and runs quietly at 28-45 dBA. It comes with two indoor handlers, one outdoor condenser, and two remote controllers for independent room control.
Pros
- 23 SEER2 efficiency rating
- Heat pump operates down to -4°F
- Quiet operation at 28 dBA
- Includes two indoor units and remotes
Cons
- Lower total capacity than 28K alternatives
- Heavier outdoor unit at 128 pounds
- No smart app control mentioned
Good fit if
- You need 20,000 BTU total cooling
- You want quiet operation under 30 dBA
- You prefer wall-mounted indoor units
Skip if
- You require more than 20,000 BTU
- You need smart app connectivity
- You prefer a lighter outdoor unit
Verdict: ROVSUN 20000 BTU Dual Zone Mini Split suits buyers who prioritize quiet performance and efficient cooling for two medium-sized rooms. It offers reliable heat pump functionality in cold weather without the bulk of higher-capacity systems.
DELLA Optima 23K BTU Soft Airflow
Best for: single rooms needing gentle airflow
- Cooling Capacity
- 23,000 BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 230V
- Coverage Area
- Up to 1500 sq.ft
- Heat Pump
- Heat Pump
- Smart Connectivity
- WiFi, Alexa, Della+ app
View on Amazon: DELLA Optima 23K BTU Soft Airflow Affiliate link
This 23,000 BTU mini split offers 23 SEER2 efficiency and covers up to 1500 square feet. It features soft, indirect airflow to avoid direct drafts and operates quietly at 34dB. You can control it via Alexa or the Della+ app. It includes a "I Feel" sensor for precise temperature tracking. The unit provides heating down to -13°F with Gold Fin technology. It is designed for year-round comfort in medium-sized rooms.
Pros
- 23 SEER2 energy efficiency rating
- Soft airflow design prevents direct drafts
- Alexa and app smart control
- Heating operation down to -13°F
- Whisper-quiet 34dB operation in Mute Mode
Cons
- Single zone capacity limits multi-room use
- Requires 230V electrical connection
- Heating capacity drops in extreme cold
Good fit if
- You need gentle, indirect airflow for sleeping
- You want to control temperature via Alexa
- You have a 230V outlet available
Skip if
- You need to cool multiple separate rooms
- You only have 115V outlets available
- You require heating below -13°F
Verdict: DELLA Optima 23K Soft Airflow is ideal for users who prioritize gentle cooling and smart voice control in a single 1500 sq. ft. space.
Specifications side by side
| Spec | COSTWAY 28K Dual Zone 9000+12000 BTU | COSTWAY 36k Dual Zone 23 SEER2 | COSTWAY 30k Dual Zone 23 SEER2 Mini Split | COSTWAY 24k Dual Zone 23 SEER2 Mini Split | ROVSUN 20K BTU Dual Zone Mini Split | ROVSUN 20000 BTU Dual Zone Mini Split | DELLA Optima 23K BTU Soft Airflow |
|---|---|---|---|---|---|---|---|
| Cooling Capacity | 28000 BTU | 36,000 BTU | 30000 BTU | 24000 BTU (9000 BTU+ 12000 BTU) | 20000 BTU | 20000 BTU (12K/12K) | 23,000 BTU |
| Efficiency Rating | 20 SEER2 | 23 SEER2 | 23 SEER2 | 23 SEER2 | 23 SEER2 | 23 SEER2 | 23 SEER2 |
| Voltage | 208/230V | 208-230V | 208-230V | 208-230V | 208-230V | 208-230V | 230V |
| Coverage Area | not stated | not stated | not stated | not stated | not stated | not stated | Up to 1500 sq.ft |
| Number of Zones | 2 Zone | 2 Zone | 2 Zone | 2 Zone | Dual Zone | 2 Zone | not stated |
| Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump |
| Smart Connectivity | Wi-Fi, Alexa, Google Assistant | Wifi Enabled | not stated | Wifi Enabled, Smartphone | WIFI, APP, Alexa, Google Assistant | not stated | WiFi, Alexa, Della+ app |
| Mounting Type | not stated | not stated | not stated | not stated | not stated | Wall Mount | not stated |
| Smart Control | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | not stated | Wi-Fi, Alexa |
| Size | Dual Zone 9000 BTU+12000 BTU | Dual Zone 9000 BTU+12000 BTU | Dual Zone 9000 BTU+12000 BTU | Dual Zone 9000 BTU+12000 BTU | not stated | not stated | CloudAir - 23,000 BTU - 230V - 23 SEER2 |
| Dimensions | 7.48 × 31.9 × 12.1 inches | 17.9 × 41.2 × 31.8 inches | 17.9 × 41.2 × 31.8 inches | 13.9 × 34.7 × 21.9 inches | 13.7 × 33.5 × 23.7 inches | 13.7 × 33.5 × 23.7 inches | 8.75 × 43.2 × 13.1 inches |
| Weight | not stated | not stated | not stated | not stated | 149 pounds | 128 pounds | 30.9 pounds |
| Color | White | White | White | White | White | White | White |
| Model | B0GQ91GZLD | B0F91LXHT8 | 681a6bae-c3b2-4cd3-b2c3-01a40f1fb0ef | not stated | 2 zone-18K/9K+9K | 2 zone-18K/12K*2 | TPX-23K2V-23S-I+O |
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Frequently asked questions
Does the COSTWAY 28K Dual Zone Mini Split support Wi-Fi control?
Yes, it includes built-in Wi-Fi connectivity. You can manage the unit remotely via a smartphone app. This feature allows you to adjust temperatures and schedules from anywhere, ensuring your home stays comfortable without needing to be physically present near the indoor unit.
What is the efficiency rating for the COSTWAY 28K model?
The COSTWAY 28K Dual Zone Mini Split has a 23 SEER2 efficiency rating. This metric measures cooling output divided by energy consumed. A higher SEER2 number indicates better energy efficiency, which can help reduce electricity costs over time compared to less efficient units.
Can I control two separate rooms with this mini split system?
Yes, this system is a dual-zone unit. It connects two indoor units to one outdoor condenser. You can set different temperatures for each zone independently. This setup is ideal for spaces where different rooms require distinct climate conditions at the same time.
What voltage does the COSTWAY 28K Dual Zone require?
The unit requires 230V power. You must ensure your home has the correct electrical wiring for this voltage. Standard household outlets often provide 110V, so professional installation is necessary to connect the mini split to the proper high-voltage circuit safely and effectively.
How does the ROVSUN 20K Dual Zone compare in size?
The ROVSUN 20K Dual Zone outdoor unit measures 33.5 inches wide and 23.7 inches tall. It weighs 149 pounds. This is slightly wider and taller than some other 23 SEER2 models. Check your installation space to ensure it fits your outdoor area comfortably.
Does the DELLA Optima 23K support voice control?
Yes, the DELLA Optima 23K supports Wi-Fi and Alexa voice control. You can use voice commands to adjust settings hands-free. This feature integrates well with smart home ecosystems, allowing you to control the single-zone unit using compatible voice assistants.
Is the COSTWAY 36K Dual Zone suitable for large spaces?
Yes, it is designed for large spaces with 208-230V power. It offers high cooling capacity and smart control features. The outdoor unit is larger, measuring 41.2 inches wide. Ensure you have adequate space for installation and access to the required electrical supply.