6 Best Alternatives to the COSTWAY 36k Dual 2 Zone Mini Split (2026)
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The costway 36k dual 2 zone mini split alternatives list helps you find units that match its core specifications. This original model delivers 36,000 BTU of total cooling capacity with a 23 SEER2 efficiency rating. It features dual-zone control and Wi-Fi connectivity for smart management. You might look elsewhere if you need different cooling power or a different zone configuration. Some buyers prefer smaller capacities for tighter spaces, while others want tri-zone setups for more rooms. Others may seek specific smart integrations or brands with different reputations.
We selected these alternatives because their published specs overlap significantly with the original unit. Each option shares the 230V voltage requirement and inverter technology. Most also include Wi-Fi smart control and high SEER2 ratings. This ensures you can compare performance metrics directly. You can choose based on specific BTU distribution needs, such as 9,000 plus 12,000 BTU splits, or different total capacities. The list covers various dual and tri-zone configurations to suit your exact room layout. All options maintain the efficiency standards you expect from this category.
Our top pick: COSTWAY 36k Dual Zone 23 SEER2.
How each alternative compares
COSTWAY 30k 2-Zone 23 SEER2 Mini Split
This COSTWAY model lowers total capacity to 30,000 BTU with a 7,000 BTU plus 9,000 BTU split. You get the same 23 SEER2 efficiency and Wi-Fi control as the original. The indoor units share the same 41.2-inch width and 31.8-inch height dimensions. This makes it a tighter fit for smaller dual-zone spaces where the full 36,000 BTU is unnecessary. You trade raw power for a more modest cooling output that still handles independent room control. It suits users who prioritize smart features and efficiency over maximum capacity. The voltage remains 230V, ensuring compatibility with your existing electrical setup. It is a streamlined version of the original for less demanding environments.
COSTWAY 28K Dual Zone 9000+12000 BTU
The COSTWAY 28K model offers 28,000 BTU total capacity with a 9,000 BTU plus 12,000 BTU zone split. It maintains the 23 SEER2 efficiency rating and Wi-Fi connectivity found in the original. A key difference is the compact indoor unit size, measuring 31.9 inches wide and 12.1 inches high. This smaller footprint may suit walls with limited mounting space. You give up some total cooling power compared to the 36k original, but gain flexibility in installation dimensions. The dual-zone control allows independent temperature management for two rooms. It is ideal for those who need balanced cooling for medium-sized rooms without the bulkier indoor units of the larger 36k model. The 230V operation remains consistent.
ROVSUN 20K BTU Dual Zone Mini Split
The ROVSUN unit provides 20,000 BTU total capacity with a 9,000 BTU plus 9,000 BTU dual-zone split. It shares the 23 SEER2 efficiency rating and Wi-Fi smart control features of the original COSTWAY. The indoor units are smaller, measuring 33.5 inches wide and 23.7 inches high. You sacrifice significant cooling capacity for a more compact system suitable for smaller rooms or apartments. The voltage is 230V, matching the original. This model is best for users who do not need the high output of the 36k unit. It offers solid efficiency and smart management for two similarly sized spaces. The reduced BTU count makes it less suitable for large open areas. It is a practical choice for modest cooling requirements.
COSTWAY 30k Tri Zone Mini Split
This COSTWAY model expands your control to three zones with 30,000 BTU total capacity. The split is 9,000 BTU plus 18,000 BTU plus 18,000 BTU. It retains the 23 SEER2 efficiency rating and Wi-Fi connectivity. The indoor units match the original dimensions at 41.2 inches wide and 31.8 inches high. You gain the ability to manage three separate rooms independently, which the original dual-zone unit cannot do. You trade one zone for a lower total BTU count per zone compared to the 36k original. This is ideal for larger homes needing multi-room comfort. The 230V operation ensures compatibility. It is a versatile option for users who need broader coverage across three distinct spaces.
COSTWAY 24k 2-Zone 23 SEER2
The COSTWAY 24k model delivers 24,000 BTU total capacity with a 9,000 BTU plus 18,000 BTU dual-zone split. It features the same 23 SEER2 efficiency rating and Wi-Fi control as the original. The indoor units are slightly smaller, measuring 34.7 inches wide and 21.9 inches high. You lose total cooling power compared to the 36k original, but gain a more flexible zone distribution. This setup suits rooms with different size requirements, allowing stronger cooling for the larger space. The 230V voltage remains consistent. It is a solid choice for users who need efficient dual-zone control without the maximum capacity of the 36k model. The compact design may fit better in certain wall spaces.
DELLA 27K BTU 2-Zone 24 SEER2
The DELLA unit offers 27,000 BTU total capacity with a 12,000 BTU plus 18,000 BTU dual-zone split. It provides 24 SEER2 efficiency, which is higher than the original 23 SEER2 rating. It includes Wi-Fi and Alexa voice control, adding voice command capabilities. The indoor units are compact, measuring 36.3 inches wide and 12.1 inches high. You get better energy efficiency and voice integration, but slightly less total cooling capacity than the 36k original. The 230V operation is standard. This model is best for users who prioritize Alexa compatibility and higher efficiency ratings. It suits two-zone cooling needs with smart home integration. The smaller indoor units may suit spaces with limited mounting width.
Quick picks
Our 7 picks
COSTWAY 36k Dual Zone 23 SEER2
Best for: larger spaces needing dual-zone independent control
- Cooling Capacity
- 36000 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 36k Dual Zone 23 SEER2 Affiliate link
This COSTWAY unit delivers 36,000 BTU of cooling across two zones, each rated at 7,000 BTU. It features a 23 SEER2 efficiency rating and uses R32 refrigerant with a low GWP of 675. The system includes Wi-Fi control, a 24-hour timer, and operates within a wide temperature range of -13℉ to 125℉. You get independent temperature adjustment for each room, making it suitable for spaces needing balanced cooling and heating.
Pros
- 23 SEER2 efficiency rating for lower energy consumption
- Dual zone design with independent 7,000 BTU outputs
- Wi-Fi enabled for smartphone control and monitoring
- R32 refrigerant with 675 GWP for environmental benefit
- Wide operating range from -13℉ to 125℉
Cons
- Lower individual zone capacity (7,000 BTU) compared to competitors offering 9,000 BTU or higher
- Requires professional HVAC installation for setup
- No mention of remote control type or display features in specifications
Good fit if
- You need a high total capacity unit for larger areas
- You want independent temperature control for two separate rooms
- You prioritize high energy efficiency with a 23 SEER2 rating
Skip if
- You require higher individual zone output than 7,000 BTU
- You are looking for a DIY installation without professional help
- You prefer a single-zone system for a single room
Verdict: COSTWAY 36k Dual Zone 23 SEER2 Mini Split offers high total cooling capacity with efficient dual-zone control, making it ideal for larger spaces where you need independent temperature management for two rooms.
COSTWAY 30k 2-Zone 23 SEER2 Mini Split
Best for: smaller dual-zone cooling with smart features
- 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 2-Zone 23 SEER2 Mini Split Affiliate link
This 30,000 BTU dual-zone mini split pairs a 7,000 BTU indoor unit with a 9,000 BTU unit for flexible room cooling. It achieves a 23 SEER2 efficiency rating and uses R32 refrigerant with a low GWP of 675. Wi-Fi connectivity allows remote control via smartphone or included remote. The outdoor unit operates effectively in temperatures ranging from -13°F to 125°F.
Pros
- High 23 SEER2 energy efficiency rating
- Wi-Fi smart control via smartphone app
- Wide operating temperature range (-13°F to 125°F)
- Eco-friendly R32 refrigerant with low GWP
Cons
- Lower individual zone capacities (7k/9k) compared to competitors
- Requires professional HVAC installation
- No mention of voice assistant compatibility
Good fit if
- You need independent temperature control for two small rooms
- You want Wi-Fi remote management capabilities
- You prioritize energy efficiency and eco-friendly refrigerant
Skip if
- You require higher cooling capacity for larger spaces
- You prefer a DIY installation without professional help
- You need voice control integration with smart home hubs
Verdict: COSTWAY 30k Dual Zone Mini Split delivers efficient cooling for smaller zones with smart features. It suits users who value independent climate control and remote access over raw power.
COSTWAY 28K Dual Zone 9000+12000 BTU
Best for: two-zone cooling with smart home control
- 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 pairs a 9000 BTU and 12000 BTU indoor unit for a total cooling capacity of 28000 BTU. It operates at 23 SEER2 efficiency and includes Wi-Fi connectivity for remote control via Alexa or Google Assistant. The outdoor unit handles extreme heat up to 127°F. You get flexible room-by-room comfort with 4D swing and quiet operation down to 28 dB.
Pros
- 23 SEER2 efficiency rating for energy savings
- Wi-Fi enabled with Alexa and Google Assistant support
- Operates reliably in cooling temperatures up to 127°F
- Quiet indoor operation at 28 dB
Cons
- Lower 20 SEER2 rating in some listed features compared to the 23 SEER2 spec
- Requires professional HVAC technician installation
- No mention of built-in display on indoor units
Good fit if
- You need separate temperature control for two distinct rooms
- You want smart home integration with voice assistants
- You live in an area with high summer temperatures
Skip if
- You require a single zone unit for one room
- You prefer a DIY installation without a licensed technician
- You need a unit with a higher SEER2 rating than 23
Verdict: COSTWAY 28k Dual Zone Mini Split offers balanced performance for two-zone cooling needs with solid smart features and high-temperature resilience.
ROVSUN 20K BTU Dual Zone Mini Split
Best for: Two medium rooms with similar cooling needs
- 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
This ROVSUN dual-zone system delivers 20,000 BTU of cooling across two 9,000 BTU indoor units. It achieves a 23 SEER2 efficiency rating and includes Wi-Fi connectivity for app and voice control. The inverter heat pump operates in ambient temperatures from -4℉ to 122℉. It suits buyers seeking balanced capacity for medium rooms with smart features and certified energy savings.
Pros
- 23 SEER2 efficiency rating for reduced energy usage
- Wi-Fi and voice control compatibility with Alexa and Google Assistant
- Inverter heat pump operates in temperatures from -4℉ to 122℉
- Includes two 9,000 BTU indoor units for dual-zone control
Cons
- Lower total capacity than 28k or 30k alternatives on this list
- Equal 9k/9k split may not suit rooms with different heat loads
- Heavier outdoor unit at 149 pounds
Good fit if
- You need two rooms of similar size and heat load
- You want smart app control and voice assistant integration
- You prefer a balanced 9k/9k zone configuration
Skip if
- You require higher total capacity than 20,000 BTU
- You need unequal zone sizes like 9k and 12k
- You prefer a lighter outdoor unit under 149 pounds
Verdict: ROVSUN 20k BTU Dual Zone Mini Split offers solid efficiency and smart control for two similarly sized rooms, making it a practical option when you do not need the higher capacity of the 28k or 30k models.
COSTWAY 30k Tri Zone Mini Split
Best for: cooling three separate rooms independently
- Cooling Capacity
- 30,000 BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Number of Zones
- 3 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wifi Enabled
View on Amazon: COSTWAY 30k Tri Zone Mini Split Affiliate link
This COSTWAY unit offers 30,000 BTU of cooling across three zones. It uses 23 SEER2 efficiency and R32 refrigerant. The outdoor unit handles temperatures from -13°F to 125°F. Wi-Fi control lets you adjust settings remotely. It suits homes needing independent climate control for three separate areas.
Pros
- 30,000 BTU total cooling capacity
- 23 SEER2 energy efficiency rating
- Wi-Fi enabled for remote control
- Operates in -13°F to 125°F climates
Cons
- Three-zone setup may not fit two-zone homes
- Requires professional HVAC installation
- Higher total BTU than two-zone alternatives
Good fit if
- You need to cool three separate rooms
- You want independent temperature control per zone
- You prefer Wi-Fi smartphone management
Skip if
- You only have two rooms to cool
- You cannot hire a professional installer
- You need a smaller 24k or 30k two-zone unit
Verdict: COSTWAY 30k Tri Zone Mini Split fits homes needing three independent climate zones. Its 23 SEER2 rating and wide operating temperature range make it a solid choice for multi-room comfort.
COSTWAY 24k 2-Zone 23 SEER2
Best for: cooling two rooms with different size needs
- Cooling Capacity
- 24000 BTU (9000 BTU + 18000 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 2-Zone 23 SEER2 Affiliate link
This COSTWAY unit delivers 24,000 BTU of cooling across two zones, with capacities of 9,000 and 18,000 BTU. It achieves a 23 SEER2 efficiency rating and uses R32 refrigerant with a low GWP of 675. The system operates on 208-230V and includes Wi-Fi control. It is designed for homes needing flexible temperature management in separate rooms.
Pros
- 24,000 BTU total cooling capacity split into 9,000 and 18,000 BTU zones
- 23 SEER2 efficiency rating for reduced energy consumption
- Wi-Fi enabled for smartphone control and scheduling
- R32 refrigerant with a low GWP of 675
- Operates in temperatures ranging from -13°F to 125°F
Cons
- Requires professional HVAC installation
- Lacks specific indoor unit noise level data in the provided specs
- Heavier and bulkier than single-zone alternatives
Good fit if
- You need independent cooling for two rooms of different sizes
- You want high efficiency with a 23 SEER2 rating
- You prefer Wi-Fi control over manual remotes only
Skip if
- You only need to cool a single room
- You are looking for a self-installation unit
- You require a lower voltage 110V connection
Verdict: COSTWAY 24k Dual Zone Mini Split suits you if you need strong, efficient cooling for two distinct spaces. It offers reliable smart control and broad temperature operation, making it a solid choice for multi-room comfort.
DELLA 27K BTU 2-Zone 24 SEER2
Best for: Two-zone cooling with Alexa voice control
- Cooling Capacity
- 27000 BTU/h
- Efficiency Rating
- 24 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 1550 Sq.Ft
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
View on Amazon: DELLA 27K BTU 2-Zone 24 SEER2 Affiliate link
This Della dual-zone system delivers 27,000 BTU of cooling with a 24 SEER2 efficiency rating. It pairs a 12,000 BTU indoor unit with an 18,000 BTU unit to cover up to 1,550 square feet. The outdoor condenser operates on 208-230V power. You get WiFi and Alexa connectivity for remote control. It includes separate controllers for each room, allowing individual temperature settings for your specific needs.
Pros
- 24 SEER2 efficiency rating for reduced energy consumption
- Works with Alexa and WiFi for voice and app control
- Separate indoor units (12k and 18k BTU) with individual controllers
- Cools and heats down to 5 degrees Fahrenheit
Cons
- Self-cleaning function is listed on the display but does not operate
- Requires professional installation and line-set vacuuming
- Lacks 4D air flow; only adjusts up-down and left-right
Good fit if
- You need precise temperature control for two distinct rooms
- You want voice control via Alexa for your climate settings
- You require a 208-230V system for your electrical setup
Skip if
- You need a self-cleaning function that actually runs
- You only have standard 115V household outlets
- You want automatic 4D air direction for even airflow
Verdict: Della 27K BTU Dual Zone Mini Split offers high efficiency and smart control for two-zone cooling. It suits users who need separate climate management for different rooms and have the proper 208-230V electrical infrastructure.
Specifications side by side
| Spec | COSTWAY 36k Dual Zone 23 SEER2 | COSTWAY 30k 2-Zone 23 SEER2 Mini Split | COSTWAY 28K Dual Zone 9000+12000 BTU | ROVSUN 20K BTU Dual Zone Mini Split | COSTWAY 30k Tri Zone Mini Split | COSTWAY 24k 2-Zone 23 SEER2 | DELLA 27K BTU 2-Zone 24 SEER2 |
|---|---|---|---|---|---|---|---|
| Cooling Capacity | 36000 BTU | 30000 BTU | 28000 BTU | 20000 BTU | 30,000 BTU | 24000 BTU (9000 BTU + 18000 BTU) | 27000 BTU/h |
| Efficiency Rating | 23 SEER2 | 23 SEER2 | 20 SEER2 | 23 SEER2 | 23 SEER2 | 23 SEER2 | 24 SEER2 |
| Voltage | 208-230V | 208-230V | 208/230V | 208-230V | 208-230V | 208-230V | 208-230V |
| Coverage Area | not stated | not stated | not stated | not stated | not stated | not stated | Up to 1550 Sq.Ft |
| Number of Zones | 2 Zone | 2 Zone | 2 Zone | Dual Zone | 3 Zone | 2 Zone | 2 Zone |
| Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump |
| Smart Connectivity | not stated | not stated | Wi-Fi, Alexa, Google Assistant | WIFI, APP, Alexa, Google Assistant | Wifi Enabled | Wifi Enabled, Smartphone | WiFi, Alexa, App |
| Smart Control | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi, Alexa |
| Size | Dual Zone 7000 BTU+7000 BTU | Dual Zone 7000 BTU+9000 BTU | Dual Zone 9000 BTU+12000 BTU | not stated | Tri(3) Zone 9k+18k+18k BTU | Dual Zone 9000 BTU+18000 BTU | 2 Zone - 27000 BTU 12+18 |
| Dimensions | 17.9 × 41.2 × 31.8 inches | 17.9 × 41.2 × 31.8 inches | 7.48 × 31.9 × 12.1 inches | 13.7 × 33.5 × 23.7 inches | 17.9 × 41.2 × 31.8 inches | 13.9 × 34.7 × 21.9 inches | 7.69 × 36.3 × 12.1 inches |
| Weight | not stated | not stated | not stated | 149 pounds | not stated | not stated | 23.1 pounds |
| Color | White | White | White | White | White | White | White |
| Model | B0F91FTFQS | B0F917PLP2 | B0GQ91GZLD | 2 zone-18K/9K+9K | 2c8d3fbd-ab67-472d-afd7-51c9e7d4f4b3 | not stated | 1D3-TP+D1218 |
When you evaluate capacity across split systems, compare the specs of svago lite 2 sv210 dual alternatives.
Frequently asked questions
What is the most efficient dual zone mini split available?
The Della 27K BTU 2-Zone unit leads with a 24 SEER2 rating. This efficiency rating indicates strong energy performance for cooling two separate rooms. It supports Wi-Fi and Alexa voice control. The total capacity is 27,000 BTU, split between 12,000 and 18,000 BTU indoor units. Other models in this group offer 23 SEER2, making the Della the top choice for efficiency.
Which alternative offers three independent zones instead of two?
The COSTWAY 30k Tri Zone Mini Split is the only option providing three independent climate zones. It delivers 9,000 BTU plus 18,000 BTU plus 18,000 BTU of cooling. This setup suits homes needing separate temperature management for three distinct rooms. It maintains a 23 SEER2 efficiency rating and includes Wi-Fi smart control for convenient remote management.
How do the indoor unit dimensions compare across these models?
Dimensions vary significantly based on capacity and design. The larger 36k and 30k dual-zone models measure 41.2 inches wide and 31.8 inches high. Smaller units like the 28k and 24k models are more compact, with widths around 31.9 to 34.7 inches. The ROVSUN 20k model sits at 33.5 inches wide. Check these measurements to ensure the unit fits your wall space.
Do all these alternatives support smart home integration?
Yes, every listed model features Wi-Fi connectivity for smart control. You can manage temperature settings remotely via an app. The Della 27K BTU 2-Zone unit adds Alexa voice control support. This allows you to adjust settings using voice commands. All units operate on 230V power, ensuring consistent smart functionality across the different brand options.
Which model is best for two rooms with different cooling needs?
The COSTWAY 24k Dual Zone Mini Split is ideal for rooms with different sizes. It provides a 9,000 BTU unit plus an 18,000 BTU unit. This asymmetric split handles varying cooling demands effectively. It also offers 23 SEER2 efficiency and Wi-Fi control. If you need equal capacity for both rooms, consider the ROVSUN 20k model with its 9k+9k split.
What voltage do these mini split systems require for installation?
All listed alternatives require a 230V electrical connection for proper operation. This includes the COSTWAY, ROVSUN, and Della models. You must ensure your home has the correct 208-230V infrastructure before installation. Standard 110V outlets are not sufficient for these high-capacity units. Verify your electrical panel capacity to support the amperage required by these dual-zone systems.
Is there a budget-friendly option with dual zone capability?
The ROVSUN 20K BTU Dual Zone Mini Split is positioned as the budget choice. It offers 23 SEER2 efficiency and Wi-Fi control at a lower capacity. It provides 9,000 BTU plus 9,000 BTU, suitable for two medium rooms with similar cooling needs. It weighs 149 pounds. This model is practical if you do not require the higher output of the 28k or 30k alternatives.