6 Best Alternatives to the COSTWAY 24000 BTU Mini Split (2026)
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If you are looking for costway 24000 btu mini split alternatives, you likely want a unit that matches its high capacity or smart features. The original COSTWAY model offers 20 SEER2 efficiency and Wi-Fi control, making it strong for large spaces up to 1500 sq.ft. It also handles extreme temperatures with heating down to -4℉. However, you might need less power for a smaller room or a different voltage setup. Some buyers prefer tri-zone systems or more compact indoor units. These alternatives were chosen because their specs overlap with the original, offering similar efficiency ratings or smart connectivity. You can find options with 20 SEER2 ratings and 230V power that fit various room sizes. Whether you need a budget-friendly choice or a premium quiet operation, these models provide comparable performance. Each alternative addresses specific needs while maintaining the core benefits of the original system. You can select based on your exact square footage and power requirements.
How each alternative compares
ROVSUN 12000 BTU 230V Mini Split
The ROVSUN 12000 BTU model drops capacity significantly compared to the COSTWAY 24000 BTU unit. It provides 12,000 BTUs rather than 24,000, making it suitable for smaller rooms instead of large spaces. Like the original, it uses 230V power and offers 20 SEER2 efficiency with Wi-Fi control. You give up raw cooling power for a more compact indoor unit measuring 31.9 inches wide. This choice suits users who need quiet, smart operation in a smaller area. It is a budget-friendly option if you do not require the high output of the 24,000 BTU model.
TOSOT 18,000 BTU WiFi Mini Split
The TOSOT 18,000 BTU unit offers less cooling capacity than the COSTWAY 24,000 BTU model. It provides 18,000 BTUs, which is better for medium-sized rooms rather than large spaces up to 1500 sq.ft. It shares the same 20 SEER2 efficiency rating and 230V requirement. You gain smart control via Wi-Fi and Alexa compatibility, similar to the original. The indoor unit is taller at 37.3 inches but narrower at 23.3 inches. This option fits buyers who prioritize quiet operation and app scheduling over maximum cooling power. It is a solid choice for single-zone comfort in smaller areas.
Della Vario 9000 BTU Mini Split
The Della Vario 9000 BTU mini split has much lower capacity than the COSTWAY 24000 BTU. It provides only 9,000 BTUs, targeting small rooms rather than large spaces. It maintains the 20 SEER2 efficiency and 230V power requirement. You get Wi-Fi and Alexa control, matching the original's smart features. The indoor unit is 31.9 inches wide, similar to the ROVSUN. This model is ideal if you need quiet, efficient cooling in a compact area. You sacrifice significant cooling power for a smaller footprint. It is a good pick for users who do not need the high output of the 24,000 BTU COSTWAY model.
ROVSUN 28000 BTU Tri-Zone Mini Split
The ROVSUN 28000 BTU Tri-Zone unit differs by offering multi-zone capability instead of single-zone cooling. It provides 28,000 BTUs total, split across three 9,000 BTU indoor units. This allows you to control temperatures in three separate rooms from one outdoor unit. Like the COSTWAY, it uses 230V power and offers 20 SEER2 efficiency with Wi-Fi control. You give up the simplicity of a single large unit for the flexibility of zoning. The outdoor unit is heavier at 179 pounds. This choice suits users who need to condition multiple distinct areas without installing separate systems.
YITAHOME 12K BTU 20 SEER2 Mini Split
The YITAHOME 12,000 BTU model provides half the capacity of the COSTWAY 24,000 BTU unit. It offers 12,000 BTUs, suitable for mid-sized rooms under 750 sq.ft. rather than large spaces. It shares the 20 SEER2 efficiency rating and 230V power requirement. You get Wi-Fi control, matching the original's smart features. The indoor unit is slightly narrower at 31.7 inches. This option is ideal if you need efficient cooling in a smaller area. You sacrifice high output for a more modest capacity. It fits users who do not require the robust heating and cooling power of the 24,000 BTU model.
GrowthWing 18k BTU 230V Mini Split
The GrowthWing 18,000 BTU unit offers less capacity than the COSTWAY 24,000 BTU model. It provides 18,000 BTUs, targeting medium-sized rooms up to 1,250 sq.ft. It shares the 20 SEER2 efficiency and 230V power requirement. You get Wi-Fi and Alexa control, similar to the original. The indoor unit is 35.8 inches wide. This choice suits users who prioritize quiet operation and precise temperature sensing over raw cooling power. It is a solid option for efficient performance in medium spaces. You give up some capacity for a focused approach to comfort in smaller to medium areas.
Quick picks
Our 7 picks
COSTWAY 24000 BTU Mini Split
Best for: large spaces requiring 208-230V power
- Cooling Capacity
- 24,000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 208/230V
- Coverage Area
- Up to 1,500 sq ft
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, App, Alexa, Google Assistant
View on Amazon: COSTWAY 24000 BTU Mini Split Affiliate link
The COSTWAY 24000 BTU Mini Split handles large spaces up to 1500 sq. ft. with a 20 SEER2 efficiency rating. It operates on 208-230V power and includes Wi-Fi connectivity for app control. The unit features a 4D airflow design, seven operation modes, and eight fan speeds. It maintains performance in extreme temperatures, heating down to -4℉ and cooling up to 127℉. Indoor noise levels reach as low as 28 dB.
Pros
- 24000 BTU capacity for large rooms up to 1500 sq. ft.
- 20 SEER2 energy efficiency rating for reduced power consumption.
- Wi-Fi connectivity with Alexa and Google Assistant support.
- Operates reliably in extreme heat (127℉) and cold (-4℉).
Cons
- Requires 208-230V electrical connection, limiting installation options.
- Indoor unit is 39.6 inches wide, which is bulky for some walls.
- No 115V model option available for this 24000 BTU capacity.
Good fit if
- You need cooling for a large open area up to 1500 sq. ft.
- You have a 208-230V electrical circuit available for installation.
- You want smart app control and voice assistant compatibility.
Skip if
- You only have standard 115V outlets available.
- You are cooling a small room under 500 sq. ft.
- You need a compact indoor unit under 30 inches wide.
Verdict: COSTWAY 24000 BTU Mini Split is a high-capacity unit for large spaces that requires 208-230V power. It suits users who need robust heating in cold weather and smart app control.
ROVSUN 12000 BTU 230V Mini Split
Best for: small rooms needing smart, quiet cooling
- Cooling Capacity
- 12000 BTU
- Efficiency Rating
- 20 SEER2, 20 SEER
- Voltage
- 230V
- Coverage Area
- Up to 550 sq.ft.
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, App, Alexa, Google Assistant
View on Amazon: ROVSUN 12000 BTU 230V Mini Split Affiliate link
This ROVSUN unit offers 12,000 BTU cooling and heating for rooms up to 550 square feet. It runs on 230V power and achieves a 20 SEER2 efficiency rating. The system includes Wi-Fi connectivity for app and voice control via Alexa or Google Assistant. It operates quietly at 28dB in mute mode. This model suits smaller spaces where energy efficiency and smart features matter more than raw capacity.
Pros
- 20 SEER2 efficiency rating for energy savings
- Wi-Fi connectivity with app and voice control
- Ultra-quiet 28dB operation in mute mode
- Covers areas up to 550 square feet
Cons
- Lower 12,000 BTU capacity compared to 24,000 BTU alternatives
- Requires 230V electrical connection, not standard 115V
- Heavier 70-pound indoor unit than compact competitors
Good fit if
- You need efficient cooling for a small room under 550 sq.ft.
- You want smart app and voice control features
- You have a 230V electrical outlet available
Skip if
- You require high-capacity cooling for large open spaces
- You only have standard 115V household outlets
- You prefer a lighter, more compact indoor unit
Verdict: ROVSUN 12000 BTU WiFi Mini Split is a solid choice for smaller rooms where you value quiet operation and smart connectivity over high cooling power.
TOSOT 18,000 BTU WiFi Mini Split
Best for: Quiet, smart-controlled single-zone cooling
- Cooling Capacity
- 18,000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 230V
- Heat Pump
- Heating System
- Smart Connectivity
- Wifi, Alexa, GREE+ app
- Smart Control
- Wi-Fi, Alexa
View on Amazon: TOSOT 18,000 BTU WiFi Mini Split Affiliate link
The TOSOT 18,000 BTU mini split offers 20 SEER2 efficiency on a 230V circuit. It includes Wi-Fi control via the GREE+ app and Alexa compatibility. The unit operates between 22dB and 36dB, making it suitable for bedrooms. It comes with a 16 ft copper line set. This model provides stable heating down to -13°F. It is a strong option for users needing smart features and quiet operation in medium-sized rooms.
Pros
- 20 SEER2 inverter compressor for energy savings
- Wi-Fi and Alexa voice control support
- Quiet operation at 22dB–36dB noise level
- Includes 16 ft copper line set
- Heating function down to -13°F
Cons
- 18,000 BTU capacity is lower than the 24,000 BTU reference
- Requires professional installation for vacuuming and refrigerant handling
- Only one zone supported per unit
Good fit if
- You need smart app control for scheduling
- You prioritize quiet operation for sleeping areas
- You have a 230V electrical circuit available
Skip if
- You require more than 18,000 BTU of cooling power
- You need a multi-zone system for multiple rooms
- You prefer a 115V plug-in unit without hardwiring
Verdict: TOSOT 18,000 BTU Wi-Fi Mini Split is a quiet, efficient choice for single rooms where smart scheduling matters. It fits buyers who value app control and low noise over raw cooling capacity.
Della Vario 9000 BTU Mini Split
Best for: small rooms needing quiet, smart cooling
- Cooling Capacity
- 9,000 BTU (0.75 Ton)
- Efficiency Rating
- 20 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 400 sq ft
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa, DELLA app
View on Amazon: Della Vario 9000 BTU Mini Split Affiliate link
This Della unit offers 9,000 BTU cooling and heating for spaces up to 400 square feet. It runs on 208-230V power and achieves a 20 SEER2 efficiency rating. The system includes smart features like WiFi and Alexa compatibility, plus a remote sensor for precise temperature control. It operates quietly at 29 dBa. This model suits smaller rooms where energy efficiency and smart control are priorities over raw cooling power.
Pros
- 20 SEER2 efficiency rating for energy savings
- WiFi and Alexa smart home connectivity
- Ultra-quiet operation at 29 dBa
- Remote temperature sensor for personal comfort
Cons
- 9,000 BTU capacity is too small for large rooms
- Requires professional installation and line-set vacuuming
- Heating performance drops in very cold weather
Good fit if
- You need efficient cooling for a room under 400 square feet
- You want smart control via Alexa or a smartphone app
- You prioritize quiet operation in a bedroom or office
Skip if
- You need to cool a space larger than 400 square feet
- You require a 115V standard household plug without hardwiring
- You prefer a DIY installation without professional help
Verdict: Della 9000 BTU Mini Split, 20 SEER2 is a compact, efficient option for small rooms, offering smart features and quiet operation rather than high capacity.
ROVSUN 28000 BTU Tri-Zone Mini Split
Best for: conditioning three separate rooms with one unit
- Cooling Capacity
- 28,000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 208-230V
- Number of Zones
- 3 Zone
- Heat Pump
- Heat Pump
- Smart Control
- Wi-Fi
View on Amazon: ROVSUN 28000 BTU Tri-Zone Mini Split Affiliate link
This ROVSUN unit combines a 28,000 BTU outdoor condenser with three 9,000 BTU indoor handlers. It delivers 20 SEER2 efficiency and includes Wi-Fi connectivity for remote management. You get individual controllers for each room, allowing precise temperature adjustments across multiple spaces. The system operates on 208-230V power and features a heat pump for year-round comfort. It is designed for users needing to condition three separate areas with a single outdoor unit.
Pros
- Three 9,000 BTU indoor units for separate room control
- 20 SEER2 efficiency rating for energy savings
- Wi-Fi enabled for smart home integration
- Operates in ambient temperatures from -4°F to 122°F
Cons
- Heavier build at 179 pounds
- Larger outdoor unit dimensions
- Requires professional HVAC installation
Good fit if
- You need to cool three separate rooms
- You want individual temperature control per zone
- You prefer Wi-Fi managed climate systems
Skip if
- You only need to condition one room
- You require a single-zone setup
- You cannot accommodate a 28,000 BTU system
Verdict: ROVSUN 28000 BTU Tri Zone Mini Split suits you if you need to manage three distinct rooms with individual climate settings. It offers efficient multi-zone cooling and heating without the complexity of separate systems.
YITAHOME 12K BTU 20 SEER2 Mini Split
Best for: Mid-sized rooms needing 208-230V power
- Cooling Capacity
- 12000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 750 sq ft
- Heat Pump
- Heat Pump
- Smart Control
- Wi-Fi
View on Amazon: YITAHOME 12K BTU 20 SEER2 Mini Split Affiliate link
This YITAHOME mini split offers 12,000 BTU cooling and heating for spaces up to 750 sq. ft. It runs on 208-230V power and achieves a 20 SEER2 efficiency rating. The unit includes Wi-Fi control, a remote, and operates quietly at 25 dB in sleep mode. It handles temperatures from -4°F to 122°F. This model suits those needing a mid-capacity, energy-efficient system with smart features.
Pros
- 20 SEER2 efficiency rating
- Wi-Fi and remote control
- Quiet 25 dB sleep mode
- Operates in -4°F to 122°F
Cons
- 12,000 BTU capacity is lower than the 24,000 BTU reference
- Requires 208-230V hardwired power
- Excludes shut-off valves in the package
Good fit if
- You need 12,000 BTU for a 750 sq. ft. space
- You have 208-230V electrical supply
- You want Wi-Fi smart control
Skip if
- You require 24,000 BTU cooling power
- You only have 115V outlets
- You need included shut-off valves
Verdict: YITAHOME 12000 BTU Mini Split is a solid mid-capacity option for rooms under 750 sq. ft. that require 208-230V power. It delivers strong efficiency and quiet operation for those who do not need the higher output of the 24,000 BTU models.
GrowthWing 18k BTU 230V Mini Split
Best for: medium rooms needing efficient 208/230V performance
- Cooling Capacity
- 18,000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 208/230V
- Coverage Area
- Up to 1250 Sq.Ft.
- Heat Pump
- Heat Pump
- Smart Connectivity
- WiFi, Alexa, App
View on Amazon: GrowthWing 18k BTU 230V Mini Split Affiliate link
The GrowthWing 18000 BTU Mini Split delivers 20 SEER2 efficiency and 208/230V power for spaces up to 1,250 sq. ft. It includes I FEEL sensing, 4D airflow, and smart controls via app or Alexa. This unit is ideal for you if you need reliable year-round cooling and heating with quiet 32dB operation. It suits rooms like bedrooms or living areas where consistent comfort matters.
Pros
- 20 SEER2 energy efficiency rating
- 208/230V voltage compatibility
- Covers up to 1,250 sq. ft.
- Smart app and Alexa control
- Quiet 32dB operation level
Cons
- 18,000 BTU capacity is lower than the 24,000 BTU benchmark
- No explicit Bluetooth support listed
- Requires professional HVAC installation
Good fit if
- You need cooling for a 1,250 sq. ft. space
- You prefer 208/230V electrical systems
- You want smart app control
Skip if
- You require more than 18,000 BTU of cooling power
- You are installing in a space larger than 1,250 sq. ft.
- You need a 115V plug-and-play unit
Verdict: GrowthWing 18000 BTU Mini Split is a solid option for medium-sized rooms needing efficient 208/230V performance and smart controls. It fits you best if you prioritize quiet operation and precise temperature sensing over raw cooling power.
Specifications side by side
| Spec | COSTWAY 24000 BTU Mini Split | ROVSUN 12000 BTU 230V Mini Split | TOSOT 18,000 BTU WiFi Mini Split | Della Vario 9000 BTU Mini Split | ROVSUN 28000 BTU Tri-Zone Mini Split | YITAHOME 12K BTU 20 SEER2 Mini Split | GrowthWing 18k BTU 230V Mini Split |
|---|---|---|---|---|---|---|---|
| Cooling Capacity | 24,000 BTU | 12000 BTU | 18,000 BTU | 9,000 BTU (0.75 Ton) | 28,000 BTU | 12000 BTU | 18,000 BTU |
| Efficiency Rating | 20 SEER2 | 20 SEER2, 20 SEER | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 |
| Voltage | 208/230V | 230V | 230V | 208-230V | 208-230V | 208-230V | 208/230V |
| Coverage Area | Up to 1,500 sq ft | Up to 550 sq.ft. | not stated | Up to 400 sq ft | not stated | Up to 750 sq ft | Up to 1250 Sq.Ft. |
| Number of Zones | not stated | not stated | not stated | not stated | 3 Zone | not stated | not stated |
| Heat Pump | Heat Pump | Heat Pump | Heating System | Heat Pump | Heat Pump | Heat Pump | Heat Pump |
| Smart Connectivity | Wi-Fi, App, Alexa, Google Assistant | Wi-Fi, App, Alexa, Google Assistant | Wifi, Alexa, GREE+ app | Wi-Fi, Alexa, DELLA app | not stated | not stated | WiFi, Alexa, App |
| Smart Control | Wi-Fi, Alexa | Wi-Fi | Wi-Fi, Alexa | Wi-Fi, Alexa | Wi-Fi | Wi-Fi | Wi-Fi, Alexa |
| Dimensions | 8.66 × 39.6 × 12.6 inches | 7.99 × 31.9 × 11.5 inches | 16.9 × 23.3 × 37.3 inches | 8 × 31.9 × 11.5 inches | 16.6 × 38.5 × 31.6 inches | 8.1 × 31.7 × 10.6 inches | 8.11 × 35.8 × 11.6 inches |
| Weight | 27.6 pounds | 70 pounds | not stated | 19.8 pounds | 179 pounds | 68.3 pounds | 88 pounds |
| Color | White | White | White | White | White | White | White |
| Model | Blast Pro | RV12T2/19-I/RV12T2/19-O | SU-COSMO18-230 | TL-9K2VB-20S-I+O | 3 zone-28K/9K-9K-9K | MAYIHbWUxi | HP12N |
| Size | not stated | not stated | WiFi - 18,000 BTU 230V (20 SEER2) | 9,000 BTU - 230V / 20 SEER2 | 3 Zone 28000 BTU (9+9+9) | not stated | 18000 BTU 208/230V |
Frequently asked questions
Which mini split is best for a large garage needing 208-230V power?
The COSTWAY 24000 BTU Mini Split is the top choice for large spaces requiring robust heating and smart app control. It operates on 230V power and delivers 20 SEER2 efficiency. This high-capacity unit suits users who need to condition areas up to 1500 square feet effectively during cold weather.
What is the quietest option for a small bedroom?
The TOSOT 18,000 BTU WiFi Mini Split is designed for quiet, smart-controlled single-zone cooling. It fits buyers who value low noise and app control over raw capacity. It runs on 230V power with 20 SEER2 efficiency and integrates with Alexa for convenient scheduling and remote management of your bedroom climate.
Can I control my mini split with Alexa?
Yes, several models support Alexa voice control. The TOSOT 18,000 BTU and Della Vario 9000 BTU units both feature Wi-Fi and Alexa compatibility. The GrowthWing 18k BTU model also includes these smart controls. These units allow you to adjust settings hands-free while maintaining 20 SEER2 efficiency on 230V power.
Which unit handles three separate rooms?
The ROVSUN 28000 BTU Tri-Zone Mini Split is built for conditioning three separate rooms with one unit. It offers efficient multi-zone cooling and heating with individual climate settings for each space. This system runs on 230V power and provides 20 SEER2 efficiency, managing 9,000 BTU per zone without the complexity of separate systems.
Is there a compact option for small rooms?
The Della Vario 9000 BTU Mini Split is a compact, efficient option for small rooms. It offers smart features and quiet operation rather than high capacity. Weighing just 19.8 pounds, it fits easily into tighter spaces. It runs on 230V power with 20 SEER2 efficiency and includes Wi-Fi and Alexa connectivity.
What is the most energy-efficient choice among these alternatives?
All listed alternatives share a 20 SEER2 efficiency rating, making them equally efficient in terms of energy consumption per unit of cooling. Whether you choose the COSTWAY 24000 BTU or the Della Vario 9000 BTU, you get the same high efficiency. They all operate on 230V power for optimal performance.
Which mini split is best for a 1,250 square foot room?
The GrowthWing 18k BTU 230V Mini Split is specifically rated for medium rooms up to 1,250 square feet. It prioritizes quiet operation and precise temperature sensing over raw cooling power. This unit runs on 208/230V power with 20 SEER2 efficiency and includes Wi-Fi and Alexa controls for easy management of your space.
Do I need 230V power for these mini splits?
Yes, all listed alternatives require 208-230V power. This includes the COSTWAY, ROVSUN, TOSOT, Della, and GrowthWing models. You cannot use standard 110V outlets for these units. Ensure your electrical setup supports 230V before installation to handle the high capacity and efficient operation provided by these 20 SEER2 rated systems.