6 Best Alternatives to the COSTWAY 24k Dual 2 Zone Mini Split (2026)
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The costway 24k dual 2 zone mini split alternatives listed here share key specifications with the original model. The COSTWAY 24k 2-Zone 23 SEER2 delivers 23 SEER2 efficiency and Wi-Fi control for two rooms. It handles unequal cooling needs with a 9000 BTU and 18000 BTU setup. You might want a different option if you need more total capacity or a different zone configuration. Some users prefer single-zone units for quieter operation or tri-zone systems for three rooms. Others seek higher efficiency ratings or specific installation types like ceiling cassettes. These alternatives were chosen because their specs overlap with the original. They offer similar voltage, smart control, and efficiency levels. You can compare their capacities and features to find the best fit for your space. This guide helps you navigate the options without guessing which specs matter most for your home.
How these alternatives compare
COSTWAY 28K Dual Zone 23 SEER2
The COSTWAY 28K Dual Zone Mini Split uses two 18,000 BTU indoor units, giving you equal power for both rooms. This differs from the original model, which pairs a smaller 9,000 BTU unit with an 18,000 BTU unit. You gain consistent cooling capacity across both spaces, which suits larger rooms or areas with high heat loads. The efficiency rating remains at 23 SEER2, and it keeps the same Wi-Fi smart control features. You give up the flexibility of unequal zone sizing. If you need identical cooling performance for two large rooms, this balanced configuration is the better choice over the original asymmetrical setup.
DELLA Optima 23K BTU Soft Airflow
The DELLA Optima 23K BTU Soft Airflow is a single-zone unit, unlike the original dual-zone system. You get one 23,000 BTU indoor unit designed for gentle airflow, which is ideal for bedrooms or home offices. This model prioritizes quiet operation and draft-free comfort over multi-room flexibility. It shares the 23 SEER2 efficiency rating and offers Wi-Fi and Alexa smart control compatibility. You lose the ability to control two separate rooms independently. If you only need to cool one large space and value soft, quiet air distribution, this single-zone option provides a more comfortable environment than the dual-zone alternative.
ROVSUN 20K BTU Dual Zone Mini Split
The ROVSUN 20K BTU Dual Zone Mini Split features two 9,000 BTU indoor units, providing equal cooling power for both zones. This contrasts with the original model’s unequal 9,000 BTU and 18,000 BTU split. You gain balanced temperature control for two smaller rooms of similar size. The efficiency rating is 23 SEER2, and it includes Wi-Fi smart control just like the original. You sacrifice raw cooling capacity for larger spaces. If your two rooms are modest in size and require identical cooling levels, this symmetrical dual-zone system offers a more tailored solution than the original’s heavy-lifting second unit.
TURBRO 27000 BTU Dual Zone Mini Split
The TURBRO 27000 BTU Dual Zone Mini Split offers a 12,000 BTU and an 18,000 BTU configuration, similar to the original’s unequal split but with higher total capacity. This model provides more cooling power for larger areas while maintaining independent zone control. It supports Wi-Fi smart control for remote management. The original COSTWAY model has a 23 SEER2 rating, while this TURBRO unit does not list an efficiency rating in the provided data. You gain additional cooling headroom for bigger rooms. If you need more total BTUs for a larger footprint, this higher-capacity dual-zone system is a practical upgrade over the standard 24,000 BTU original.
YITAHOME Tri-Zone 24K BTU Mini Split
The YITAHOME Tri-Zone 24K BTU Mini Split controls three rooms instead of two, expanding your climate management capabilities. This model uses Wi-Fi and Alexa for smart control and offers 23 SEER2 efficiency, matching the original’s energy performance. You gain the ability to independently regulate a third space, which the dual-zone original cannot do. You give up the specific 9,000 BTU and 18,000 BTU split for a three-zone configuration. If you need to cool three separate areas with precise, individual control, this tri-zone system provides greater flexibility and coverage than the original two-zone alternative.
ROVSUN 18K Dual Zone Ceiling Cassette
The ROVSUN 18K Dual Zone Ceiling Cassette delivers 25 SEER2 efficiency, which is higher than the original model’s 23 SEER2 rating. This ceiling-mounted unit offers superior energy savings for dual-zone operation. It includes Wi-Fi smart control and provides two 9,000 BTU zones, similar to the original’s smaller unit but with better efficiency. You gain lower operating costs and a discreet ceiling installation option. You lose the wall-mounted aesthetic and the 18,000 BTU high-power zone. If energy efficiency and hidden installation are your priorities, this high-efficiency cassette system offers a more sustainable and space-saving alternative to the standard wall-mounted original.
Quick picks
Our 7 picks
COSTWAY 24k 2-Zone 23 SEER2
Best for: Unequal two-room cooling 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 dual-zone mini split delivers 24,000 BTU of cooling across two rooms, with a 9,000 BTU indoor unit and an 18,000 BTU unit. It features a 23 SEER2 efficiency rating and uses R32 refrigerant. Wi-Fi connectivity allows smartphone control, while the outdoor unit operates in temperatures from -13°F to 125°F. It includes a 24-hour timer and multiple fan speeds for flexible climate management.
Pros
- 24,000 BTU total cooling capacity split between 9,000 and 18,000 BTU zones
- 23 SEER2 energy efficiency rating with R32 refrigerant
- Wi-Fi enabled for smartphone control and 24-hour timer
- Outdoor unit operates in extreme temperatures from -13°F to 125°F
Cons
- Requires professional HVAC installation
- No mention of physical display on indoor units
- Only 5 wind speeds available
Good fit if
- You need unequal cooling for two rooms
- You want Wi-Fi control without extra hubs
- You live in an area with high summer heat
Skip if
- You need single-zone cooling only
- You prefer manual remote control without app
- You want a self-installable unit
Verdict: COSTWAY 24k Dual Zone Mini Split suits you if you need unequal cooling for two rooms and want Wi-Fi control without extra hubs. It delivers strong performance for homes with varying heat loads in different spaces.
COSTWAY 28K Dual Zone 23 SEER2
Best for: larger rooms needing 18k BTU per zone
- 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 23 SEER2 Affiliate link
This COSTWAY 28k dual zone mini split delivers 18000 BTU per zone for a total of 28000 BTU cooling capacity. It features a 20 SEER2 efficiency rating and Wi-Fi connectivity for smart control via Alexa or Google Assistant. The unit includes a 4D swing for even airflow and operates at 28 dB. It is designed for larger homes needing zoned comfort with reliable performance in extreme weather conditions.
Pros
- 28000 BTU total cooling capacity across two zones
- 20 SEER2 energy efficiency rating
- Wi-Fi enabled with Alexa and Google Assistant support
- Quiet operation at 28 dB noise level
- 4D swing function for wider air distribution
Cons
- 20 SEER2 rating is lower than the 23 SEER2 rating of the top-listed COSTWAY model
- 28000 BTU total capacity is less than the 36k COSTWAY alternative
- No mention of a dedicated mobile app in the provided data
Good fit if
- You need 18000 BTU per zone for larger rooms
- You want smart home integration with Alexa or Google Assistant
- You prioritize quiet operation at 28 dB
Skip if
- You require the highest efficiency rating available at 23 SEER2
- You need a higher total capacity of 36000 BTU
- You prefer a system with a clearly listed mobile app
Verdict: COSTWAY 28K Dual Zone Mini Split offers strong per-zone power and smart controls, making it a solid choice for larger spaces where 20 SEER2 efficiency is acceptable.
DELLA Optima 23K BTU Soft Airflow
Best for: Bedrooms and home offices needing soft airflow
- Cooling Capacity
- 23000 BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 230V
- Coverage Area
- up to 1500 sq.ft
- Heat Pump
- 1.92 Ton Heat Pump
- Smart Connectivity
- Alexa or the Della+ app
View on Amazon: DELLA Optima 23K BTU Soft Airflow Affiliate link
The DELLA Optima Series delivers 23,000 BTU of cooling with 23 SEER2 efficiency. It features soft, indirect airflow to prevent harsh drafts, making it suitable for bedrooms or offices up to 1,500 square feet. The unit operates at 34 dB in mute mode and includes Wi-Fi control via the Della+ app. It also provides heating down to -13°F with an included installation kit.
Pros
- 23 SEER2 energy efficiency rating
- Soft, indirect airflow design prevents direct drafts
- Operates at whisper-quiet 34 dB in mute mode
- Heating capability down to -13°F
- Wi-Fi control via Alexa and Della+ app
Cons
- Single-zone capacity limits use to one room
- Requires a 25A electrical fuse for installation
- Heating performance drops significantly below -13°F
Good fit if
- You need quiet cooling for a bedroom or nursery
- You want to avoid direct airflow on your body
- You need heating in moderately cold climates
Skip if
- You require multi-zone cooling for separate rooms
- You need heating in extreme cold below -13°F
- You prefer a unit with a built-in display
Verdict: DELLA Optima 23k BTU Soft Airflow suits single-room users who prioritize gentle airflow and quiet operation over multi-zone flexibility. It is a practical option for spaces up to 1,500 square feet where draft-free comfort is a priority.
ROVSUN 20K BTU Dual Zone Mini Split
Best for: two rooms needing independent 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
This ROVSUN unit offers 20,000 BTU of cooling across two 9,000 BTU zones. It features 23 SEER2 efficiency and works with Wi-Fi, apps, and voice assistants. The system includes an outdoor condenser and two indoor handlers. It operates in temperatures from -4℉ to 122℉. You get two remotes and 25 feet of line set. This setup suits you if you need independent climate control for two separate rooms.
Pros
- 23 SEER2 energy efficiency rating
- Wi-Fi, app, and voice control support
- Dual zone with 9,000 + 9,000 BTU split
- Operates in ambient temperatures down to -4℉
Cons
- Lower total cooling capacity than 24k or 28k alternatives
- Heavier outdoor unit at 149 pounds
- Requires professional installation and extra power cord
Good fit if
- You need precise temperature control for two separate rooms
- You want smart home integration via app or voice
- You are installing in a space under 500 square feet
Skip if
- You require cooling for three or more zones
- You need higher than 20,000 BTU total capacity
- You prefer a single zone configuration
Verdict: ROVSUN 20k BTU Dual Zone Mini Split provides reliable dual-zone comfort with smart controls. It fits you best if you need two independently controlled rooms and value Wi-Fi connectivity over raw cooling power.
TURBRO 27000 BTU Dual Zone Mini Split
Best for: Large dual-zone spaces needing high efficiency
- Cooling Capacity
- 27,000 BTU
- Efficiency Rating
- 24 SEER2
- Voltage
- 230V
- Number of Zones
- 2 Zones
- Heat Pump
- Heat Pump
- Smart Control
- Wi-Fi
View on Amazon: TURBRO 27000 BTU Dual Zone Mini Split Affiliate link
This TURBRO system delivers 27,000 BTU across two zones with a 24 SEER2 efficiency rating. It uses R454B refrigerant and Wi-Fi control. The unit operates on 230V power and includes inverter technology for rapid cooling and heating. It suits larger spaces needing independent zone management and high energy efficiency.
Pros
- 24 SEER2 efficiency rating for lower energy use
- 27,000 BTU total cooling capacity
- Wi-Fi smart control capability
- R454B eco-friendly refrigerant
- Operates in temperatures down to -13°F
Cons
- Heavier at 215 pounds than many competitors
- Larger width of 43.3 inches requires more wall space
- Shipped in up to 5 separate boxes
Good fit if
- You need high cooling capacity for a large area
- You want independent temperature control for two rooms
- You prefer Wi-Fi connectivity for remote management
Skip if
- You have limited wall space for a wide unit
- You prefer a single-piece delivery experience
- You are installing in a region with strict R454B restrictions
Verdict: TURBRO 27k BTU Dual Zone Mini Split offers strong efficiency and capacity for dual-zone needs, making it a solid option for larger rooms requiring independent climate control.
YITAHOME Tri-Zone 24K BTU Mini Split
Best for: three-room independent climate control
- Cooling Capacity
- 24K BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Coverage Area
- 1200 square feet
- Number of Zones
- 3 Zone
- Heat Pump
- heat pump
View on Amazon: YITAHOME Tri-Zone 24K BTU Mini Split Affiliate link
This YITAHOME unit offers 24,000 BTU cooling across three separate zones, each delivering 9,000 BTU. It achieves a 23 SEER2 efficiency rating and includes Wi-Fi and Alexa compatibility. The system covers 1,200 square feet and operates below 40 decibels. You get a heat pump that works in temperatures from 5°F to 118°F. This setup suits larger spaces where independent control of three rooms is necessary.
Pros
- 24,000 BTU total capacity split into three 9,000 BTU zones
- 23 SEER2 efficiency rating for energy savings
- Wi-Fi and Alexa smart control integration
- Operates in extreme temperatures from 5°F to 118°F
- Quiet performance with noise levels below 40 decibels
Cons
- Three-zone configuration requires three indoor heads
- Ships in seven separate packages
- Professional installation is mandatory
Good fit if
- You need to control three separate rooms independently
- You want a high-efficiency 23 SEER2 system
- You require heating in temperatures down to 5°F
Skip if
- You only need to cool two rooms
- You prefer a single indoor unit for simplicity
- You want to handle the installation yourself
Verdict: YITAHOME 24K 3-Zone Mini Split provides independent climate control for three spaces with high efficiency. It fits buyers who need precise, multi-room management rather than single-zone simplicity.
ROVSUN 18K Dual Zone Ceiling Cassette
Best for: High-efficiency dual-zone ceiling installation
- Cooling Capacity
- 18000BTU (9K/9K)
- Efficiency Rating
- 25 SEER2
- Voltage
- 208-230V
- Number of Zones
- Dual Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- App control, Alexa, Google Assistant
View on Amazon: ROVSUN 18K Dual Zone Ceiling Cassette Affiliate link
This ROVSUN unit combines a 18,000 BTU outdoor condenser with two 9,000 BTU ceiling cassette indoor units. It achieves a 25 SEER2 efficiency rating, which reduces energy consumption compared to standard models. The system includes Wi-Fi connectivity for app and voice control via Alexa or Google Assistant. You get individual temperature management for each zone. This setup suits spaces where ceiling mounting is preferred over wall installation.
Pros
- 25 SEER2 efficiency rating for reduced energy use
- Dual zone design with two 9,000 BTU cassettes
- Wi-Fi app and voice control support
- Inverter technology for stable temperature maintenance
Cons
- Lower total cooling capacity than 24k alternatives
- Ceiling cassette form factor requires specific mounting
- Heavier outdoor unit at 200 pounds
Good fit if
- You need precise temperature control in two separate rooms
- You prefer hidden ceiling-mounted indoor units
- You want high energy efficiency with a 25 SEER2 rating
Skip if
- You require more than 18,000 BTU of total cooling
- You need wall-mounted indoor units instead of cassettes
- You want a simpler single-zone setup
Verdict: ROVSUN 18k BTU Dual Zone Cassette delivers strong efficiency and smart features for users who need flexible ceiling installation. It fits those prioritizing energy savings and multi-room comfort over raw cooling power.
Specifications side by side
| Spec | COSTWAY 24k 2-Zone 23 SEER2 | COSTWAY 28K Dual Zone 23 SEER2 | DELLA Optima 23K BTU Soft Airflow | ROVSUN 20K BTU Dual Zone Mini Split | TURBRO 27000 BTU Dual Zone Mini Split | YITAHOME Tri-Zone 24K BTU Mini Split | ROVSUN 18K Dual Zone Ceiling Cassette |
|---|---|---|---|---|---|---|---|
| Cooling Capacity | 24000 BTU (9000 BTU + 18000 BTU) | 28000 BTU | 23000 BTU | 20000 BTU | 27,000 BTU | 24K BTU | 18000BTU (9K/9K) |
| Efficiency Rating | 23 SEER2 | 20 SEER2 | 23 SEER2 | 23 SEER2 | 24 SEER2 | 23 SEER2 | 25 SEER2 |
| Voltage | 208-230V | 208/230V | 230V | 208-230V | 230V | 208-230V | 208-230V |
| Coverage Area | not specified | not specified | up to 1500 sq.ft | not specified | not specified | 1200 square feet | not specified |
| Number of Zones | 2 Zone | 2 Zone | not specified | Dual Zone | 2 Zones | 3 Zone | Dual Zone |
| Heat Pump | Heat Pump | Heat Pump | 1.92 Ton Heat Pump | Heat Pump | Heat Pump | heat pump | Heat Pump |
| Smart Connectivity | Wifi Enabled, Smartphone | Wi-Fi, Alexa, Google Assistant | Alexa or the Della+ app | WIFI, APP, Alexa, Google Assistant | not specified | Wi-Fi & Alexa | App control, Alexa, Google Assistant |
| Smart Control | Wi-Fi | Wi-Fi | Wi-Fi, Alexa | Wi-Fi | Wi-Fi | Wi-Fi, Alexa | Wi-Fi |
| Dimensions | 13.9 × 34.7 × 21.9 inches | 7.48 × 31.9 × 12.1 inches | 8.75 × 43.2 × 13.1 inches | 13.7 × 33.5 × 23.7 inches | 8.7 × 43.3 × 13.1 inches | 7.8 × 31 × 11.5 inches | 15 × 36.5 × 27.5 inches |
| Weight | not specified | not specified | 30.9 pounds | 149 pounds | 215 pounds | 17.6 pounds | 200 pounds |
| Size | Dual Zone 9000 BTU+18000 BTU | Dual Zone 18000 BTU+18000 BTU | CloudAir - 23,000 BTU - 230V - 23 SEER2 | not specified | Dual Zone(2) 27000 BTU 12+18 | not specified | not specified |
| Color | White | White | White | White | White | White | White |
| Model | not specified | BLAST PRO SERIES 28K | TPX-23K2V-23S-I+O | 2 zone-18K/9K+9K | UGL27-D1218 | MAYIHPduhj | RS- 2 zone cassette ac-9+9 |
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Frequently asked questions
Which mini split offers the highest efficiency rating?
The ROVSUN 18K Dual Zone Ceiling Cassette provides the highest efficiency at 25 SEER2. This model is designed for users who prioritize energy savings and flexible ceiling installation. It delivers dual-zone comfort while maintaining superior energy performance compared to other 23 SEER2 options on the list.
What is the best option for controlling three separate rooms?
The YITAHOME Tri-Zone 24K BTU Mini Split is the only tri-zone unit listed. It provides independent climate control for three spaces with 23 SEER2 efficiency. This setup fits buyers who need precise, multi-room management rather than the standard dual-zone simplicity found in most other models.
Can I control these units with voice assistants?
Yes, several models support voice control via Alexa. The DELLA Optima 23K BTU Soft Airflow, YITAHOME Tri-Zone 24K, and COSTWAY 28K Dual Zone all include Alexa compatibility. All listed units also feature Wi-Fi connectivity, allowing you to manage settings remotely through a smartphone app.
Which model is best for bedrooms needing soft airflow?
The DELLA Optima 23K BTU Soft Airflow is designed for gentle operation. It is ideal for bedrooms and home offices where draft-free comfort is a priority. This single-zone unit suits spaces up to 1,500 square feet and prioritizes quiet performance over multi-zone flexibility.
Are there dual-zone options with equal power in both rooms?
Yes, the COSTWAY 28K Dual Zone Mini Split uses two 18,000 BTU indoor units. This gives you equal cooling power for both rooms, unlike the original COSTWAY model which pairs a 9,000 BTU unit with an 18,000 BTU unit. It is a solid choice for larger spaces.
Which unit has the largest total cooling capacity?
The TURBRO 27000 BTU Dual Zone Mini Split offers the highest total capacity with 27,000 BTUs. It splits power into 12,000 and 18,000 BTU zones. This strong efficiency and capacity make it a solid option for larger rooms requiring independent climate control and robust cooling performance.