Best COSTWAY Mini Splits: 15 Models Compared
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You are looking at the best COSTWAY mini splits for 2026. This guide compares 15 models based strictly on their published specifications. COSTWAY offers a wide range of single-zone, dual-zone, tri-zone, and quad-zone units. These systems vary from 11,500 BTU to 36,000 BTU capacities, with voltages including 115V, 208V, and 230V options.
The top pick is the COSTWAY 24000 BTU 230V Mini Split. It leads because it delivers strong cooling capacity for large rooms. Each model in this list is selected for specific performance traits found in the technical data.
Quick picks
Our 15 picks
COSTWAY 24000 BTU 230V Mini Split
Best for: large rooms needing high cooling capacity
- Cooling Capacity
- 24000BTU
- Efficiency Rating
- 18.5 SEER
- Voltage
- 208-230V
- Heat Pump
- 2 ton heat pump
- Dimensions
- 9 × 44.5 × 13 inches
- Weight
- 68 pounds
This 24,000 BTU mini split handles large rooms with a 2-ton heat pump. It runs on 208-230V power and achieves 18.5 SEER efficiency. You get five operating modes, including auto, cool, dry, heat, and fan. The unit features inverter technology for steady temperature control. It also includes self-cleaning and auto-defrost functions. The package comes with a remote control and a 5-year parts warranty.
Pros
- 24,000 BTU cooling and heating capacity
- 18.5 SEER energy efficiency rating
- Inverter compressor technology
- Self-cleaning and auto-defrost functions
- 5-year parts warranty coverage
Cons
- 18.5 SEER is lower than the 20-23 SEER2 ratings on other models
- Requires 208-230V hardwired installation
- No Wi-Fi or smart app control listed
Good fit if
- You need high capacity for a large open space
- You have a 208-230V electrical circuit available
- You want a reliable heat pump with a long parts warranty
Skip if
- You need a higher SEER2 rating for maximum efficiency
- You only have a standard 115V outlet
- You want smart phone app control
Verdict: COSTWAY 24000 BTU Mini Split delivers strong capacity for large rooms. It suits buyers who prioritize raw cooling power and a long warranty over the highest efficiency ratings.
COSTWAY Blast Pro 18000 BTU 230V
Best for: large single-zone rooms needing 208V power
- 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
- Wi-Fi, App, Alexa, Google Assistant
This 18,000 BTU mini split handles spaces up to 1,250 square feet with a 20 SEER2 efficiency rating. It includes a heat pump for year-round use and operates on 208/230V power. You get Wi-Fi app control, voice assistant compatibility, and a quiet indoor unit at 28 dB. The system features 4D airflow and self-cleaning functions for steady comfort.
Pros
- 20 SEER2 energy efficiency rating
- Wi-Fi and voice control support
- Operates in extreme temperatures
- Quiet 28 dB indoor operation
- 4D airflow design
Cons
- Lower 20 SEER2 rating compared to 23 SEER2 competitors
- Requires professional installation
- Indoor unit is 35.8 inches wide
Good fit if
- You need a 208/230V unit for a large room
- You want smart app and voice control
- You require heating down to -4℉
Skip if
- You want the highest 23 SEER2 efficiency available
- You need a multi-zone system
- You require a 115V plug-in model
Verdict: COSTWAY 18k BTU 20 SEER2 Mini Split offers solid efficiency and smart features for large single-zone spaces. It suits buyers who need 208/230V power and extreme weather performance but can accept a slightly lower SEER2 rating than the top-tier options.
COSTWAY 12,000 BTU 21 SEER2 Mini Split
Best for: single rooms up to 750 sq.ft.
- Cooling Capacity
- 12,000 BTU
- Efficiency Rating
- 21 SEER2
- Voltage
- 208-230V
- Coverage Area
- up to 750 sq.ft.
- Heat Pump
- 1-ton heat pump
- Dimensions
- 8 × 30 × 11.5 inches
This COSTWAY 12,000 BTU mini split delivers cooling and heating for spaces up to 750 square feet. It features a 21 SEER2 efficiency rating and a 10 HSPF2 heat pump performance. The unit operates on 208-230V power and uses R32 refrigerant. You get a 4D airflow system with 353 CFM and a self-cleaning function. It includes a 5-year parts warranty and 8-year compressor coverage.
Pros
- 21 SEER2 energy efficiency rating
- Covers up to 750 square feet
- Includes 5-year parts and 8-year compressor warranty
- Built-in self-cleaning function with sterilization
Cons
- Lower 12,000 BTU capacity than many other models on this list
- Single-zone system, not a multi-zone setup
- Heavier indoor unit at 17.5 pounds compared to lighter competitors
Good fit if
- You need a single-zone unit for a room under 750 sq.ft.
- You want a 208-230V system with high efficiency
- You prefer R32 refrigerant for better environmental impact
Skip if
- You require heating for spaces larger than 750 sq.ft.
- You need to cool multiple rooms with one outdoor unit
- You only have 115V electrical outlets available
Verdict: COSTWAY 12,000 BTU Mini Split is a solid choice for single-room climate control where high efficiency and long warranty coverage matter more than raw capacity.
COSTWAY 20K Dual Zone Mini Split
Best for: Two-room independent temperature control
- Cooling Capacity
- 20000 BTU
- Efficiency Rating
- 23 SEER2
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa, Google Assistant
- Dimensions
- 7.48 × 31.9 × 12.1 inches
This dual-zone mini split delivers 20,000 BTU of cooling capacity across two rooms. It features a 23 SEER2 efficiency rating and Wi-Fi connectivity for remote control. The system includes a heat pump, 4D swing air distribution, and operates as low as 28 dB. It is designed for larger homes needing independent temperature control in separate zones.
Pros
- 23 SEER2 efficiency rating for energy savings
- Wi-Fi control with Alexa and Google Assistant
- Dual zone design for independent room temperatures
- Quiet operation down to 28 dB
Cons
- Limited to only two zones
- Base model splits 9000+9000 BTU
- Requires professional installation
Good fit if
- You need to control temperatures in two separate rooms
- You want high efficiency with a 23 SEER2 rating
- You prefer smart home integration with Alexa or Google
Skip if
- You need to cool more than two rooms
- You want a single-zone unit for one room
- You prefer a DIY installation without a technician
Verdict: COSTWAY 20K Dual Zone Mini Split is a practical choice for homeowners who need independent climate control for two rooms. It offers strong efficiency and smart features, making it suitable for medium-sized living spaces.
COSTWAY 12000 BTU 115V Mini Split
Best for: single-room cooling with standard outlets
- Cooling Capacity
- 12000 BTU
- Efficiency Rating
- 24 SEER2
- Voltage
- 115V
- Heat Pump
- 1 ton pre-charged heat pump
- Smart Connectivity
- App, Alexa, Wi-Fi
- Dimensions
- 12 × 32.5 × 8 inches
This COSTWAY mini split delivers 12,000 BTU of cooling and heating through a 115V circuit, making it suitable for standard household outlets. It achieves a 24 SEER2 efficiency rating and uses R32 refrigerant. You get smart control via app, Wi-Fi, and Alexa. The unit includes a 1-ton pre-charged heat pump and operates reliably in temperatures from -13°F to 126°F.
Pros
- 115V voltage for standard outlet compatibility
- 24 SEER2 efficiency rating
- Smart control via app, Wi-Fi, and Alexa
- Operates in extreme temperatures from -13°F to 126°F
Cons
- Lower 12,000 BTU capacity compared to higher-end models on this list
- Single-zone configuration limits cooling to one room
- Heavier indoor unit at 28.5 pounds
Good fit if
- You need a 115V unit for standard outlets
- You want high energy efficiency with a 24 SEER2 rating
- You require smart home integration with Alexa
Skip if
- You need to cool multiple rooms simultaneously
- You require more than 12,000 BTU of cooling power
- You prefer a 208-230V system for higher capacity
Verdict: COSTWAY 12000 BTU 115V Mini Split is a practical option for single-room climate control where standard 115V outlets are required. It suits users prioritizing energy efficiency and smart connectivity over raw cooling capacity.
COSTWAY 11500 BTU Mini Split
Best for: Medium rooms with 208/230V power
- Cooling Capacity
- 11500 BTU
- Efficiency Rating
- 17 SEER2
- Voltage
- 208/230V
- Coverage Area
- up to 750 square feet
- Heat Pump
- heater pump
- Smart Connectivity
- Wi-Fi, Alexa, Google Assistant
This COSTWAY 11500 BTU mini split offers cooling and heating for spaces up to 750 square feet. It runs on 208/230V power with a 17 SEER2 efficiency rating. You get Wi-Fi control via Alexa or Google Assistant, plus a standard remote. The unit features R32 refrigerant and operates in temperatures as low as 5°F for heating. It is a solid option for medium-sized rooms needing reliable climate control.
Pros
- 11500 BTU cooling and heating capacity
- Wi-Fi connectivity with voice assistant support
- 17 SEER2 energy efficiency rating
- Operates in temperatures down to 5°F
Cons
- 17 SEER2 is lower than the 21-23 SEER2 models on this list
- Requires 208/230V power, not standard 115V
- Coverage area is smaller than 18000+ BTU options
Good fit if
- You need a single-zone unit for a room up to 750 square feet
- You have 208/230V electrical service available
- You want smart home integration via Alexa or Google
Skip if
- You require higher energy efficiency than 17 SEER2
- You need to cool a space larger than 750 square feet
- You only have standard 115V outlets available
Verdict: COSTWAY 11500 BTU Mini Split is a capable mid-range option for medium rooms. It suits buyers who prioritize smart features and moderate efficiency over the highest SEER2 ratings found in larger units.
COSTWAY 28K Tri 3 Zone Mini Split
Best for: multi-room comfort with smart control
- Cooling Capacity
- 28000 BTU
- Efficiency Rating
- 20 SEER2
- Number of Zones
- 3 Zone
- Heat Pump
- Heat pump
- Smart Connectivity
- WiFi, Alexa, Google assistant
- Dimensions
- 7.48 × 31.9 × 12.1 inches
This COSTWAY 28,000 BTU system splits cooling and heating across three zones with indoor units sized at 9k, 9k, and 18k BTU. It carries a 20 SEER2 efficiency rating and includes WiFi connectivity for smart control. The outdoor unit features chassis electrical heating for reliable operation in extreme weather. You get seven operating modes and low noise levels down to 28 dB for peaceful daily use.
Pros
- Tri-zone design with 9k+9k+18k BTU indoor units
- 20 SEER2 energy efficiency rating
- WiFi connectivity with Alexa and Google Assistant support
- Chassis electrical heating for operation down to -4°F
- Quiet operation at 28 dB
Cons
- 20 SEER2 is lower than the 23 SEER2 found on other COSTWAY models
- Only one zone configuration option available in data
- Professional installation is required
Good fit if
- You need independent temperature control for three separate rooms
- You want a system that operates reliably in cold winters
- You prefer smart home integration for remote management
Skip if
- You require the highest possible energy efficiency rating
- You need a quad-zone system for four rooms
- You want a tri-zone setup with larger 12k BTU units
Verdict: COSTWAY 28K Tri 3 Zone Mini Split offers flexible zone control and cold-weather reliability, but its 20 SEER2 rating trails the more efficient 23 SEER2 options in this guide. It suits buyers who prioritize multi-room zoning and smart features over maximum energy savings.
COSTWAY 12000 BTU 21 SEER2 Mini Split
Best for: 750 sq ft rooms with 208-230V power
- Cooling Capacity
- 12,000 BTU
- Efficiency Rating
- 21 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 750 sq ft
- Heat Pump
- Heat Pump
- Dimensions
- 8 × 30 × 11.5 inches
This unit delivers 12,000 BTU of cooling and heating for spaces up to 750 square feet. It operates on 208-230V power with a 21 SEER2 efficiency rating. The indoor unit runs quietly at 31 dB and includes a self-cleaning function. You get a complete installation kit with copper pipes and a remote. It is designed for single-zone comfort in medium-sized rooms.
Pros
- 21 SEER2 energy efficiency rating
- Cools and heats rooms up to 750 sq ft
- Quiet operation at 31 dB
- Includes self-cleaning and 0-24h timer
Cons
- Requires 208-230V hardwired connection, not standard 115V
- Ships in two separate boxes
- Indoor unit width is 30 inches
Good fit if
- You need a 12,000 BTU unit for a 750 sq ft room
- You have a 208-230V electrical circuit available
- You want a high-efficiency 21 SEER2 inverter model
Skip if
- You require a standard 115V plug-in connection
- You need to cool a space larger than 750 sq ft
- You prefer a single-box delivery for easier handling
Verdict: COSTWAY 12000 BTU 21 SEER2 Mini Split is a high-efficiency solution for medium rooms with 208-230V power. It suits users who prioritize quiet operation and energy savings over standard plug-in convenience.
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
This COSTWAY mini split is a 24,000 BTU dual-zone system with 9,000 and 18,000 BTU indoor units. It delivers a 23 SEER2 efficiency rating and uses R32 refrigerant. You can control it via Wi-Fi or the included remote. The outdoor unit operates in temperatures from -13°F to 125°F. It is designed for homes needing independent climate control for two separate spaces.
Pros
- 23 SEER2 energy efficiency rating
- Wi-Fi smart control via smartphone
- R32 refrigerant with low GWP
- Outdoor unit operates in extreme temperatures
- Independent zone temperature adjustment
Cons
- Requires professional HVAC installation
- Only 2 zones available
- No mention of hardwired power option
Good fit if
- You need to cool two separate rooms with different capacities
- You want high efficiency with a 23 SEER2 rating
- You prefer Wi-Fi control over manual remotes
Skip if
- You need to control more than two zones
- You require a single-zone unit
- You prefer a non-Wi-Fi basic model
Verdict: COSTWAY 24k Dual Zone 23 SEER2 Mini Split is ideal for homeowners who need high-efficiency cooling for two distinct rooms with independent temperature control. It suits those who value smart connectivity and robust outdoor unit performance in varied climates.
COSTWAY 30k Quad 4 Zone Mini Split
Best for: multi-zone cooling in large homes
- Cooling Capacity
- 30,000 BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Number of Zones
- 4 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wifi Enabled
This COSTWAY unit delivers 30,000 BTU of cooling across four independent zones, powered by a 23 SEER2 inverter system. It uses R32 refrigerant and operates on 208-230V. You can control the temperature in each room separately via Wi-Fi or the included remote. The outdoor unit handles extreme temperatures from -13°F to 125°F. This setup suits large homes needing precise, multi-room climate management without installing separate indoor units for every space.
Pros
- 23 SEER2 efficiency rating for lower energy consumption
- Four independent zones: 7k+7k+9k+12k BTU
- Wi-Fi enabled for smartphone control
- Operates in temperatures from -13°F to 125°F
Cons
- Requires professional HVAC installation
- No dedicated app mentioned, only Wi-Fi and remote
- Complex zone configuration may require careful planning
Good fit if
- You need to control temperatures in four separate rooms
- You have a 208-230V electrical supply
- You want high efficiency with a 23 SEER2 rating
Skip if
- You need a single-zone unit for one room
- You only have 115V outlets available
- You prefer a plug-and-play setup without professional help
Verdict: COSTWAY 30k Quad 4 Zone Mini Split is best for homeowners who need independent climate control across four distinct areas. It fits those who want high efficiency and smart connectivity for a complex multi-room layout.
COSTWAY 28K Dual Zone 9000+12000 BTU
Best for: Two rooms of different sizes needing independent 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
This 28,000 BTU dual zone mini split divides cooling between a 9,000 BTU indoor unit and a 12,000 BTU indoor unit. It operates at 20 SEER2 efficiency with Wi-Fi control. The outdoor unit includes chassis electrical heating for reliable performance in cold weather down to -4°F. It runs quietly at 28 dB and features a self-clean function. You get independent temperature control for two separate rooms.
Pros
- Dual zone design with 9000 BTU and 12000 BTU indoor units
- 20 SEER2 energy efficiency rating
- Wi-Fi control compatible with Alexa and Google Assistant
- Low noise operation at 28 dB
- Chassis electrical heating for cold weather reliability
Cons
- 20 SEER2 rating is lower than the 23 SEER2 found on other models in this list
- Total capacity of 28,000 BTU is less than the 30k and 36k quad or tri zone options
- Requires professional licensed HVAC technician installation
Good fit if
- You need independent climate control for two rooms of different sizes
- You want Wi-Fi smart home integration without app complexity
- You live in an area with cold winters requiring reliable heating
Skip if
- You require the highest possible energy efficiency rating available
- You need to cool more than two separate zones
- You prefer a single high-capacity unit for one large open space
Verdict: COSTWAY 28K Dual Zone 9000+12000 BTU suits buyers who need flexible cooling for two distinct rooms with smart features. It is a practical option for dual-zone needs, though you pay a slight efficiency trade-off compared to higher SEER2 models.
COSTWAY 20K Dual 2 Zone Mini Split
Best for: Two-room comfort with smart control
- Cooling Capacity
- 20000 BTU
- Efficiency Rating
- 23 SEER2
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa, Google Assistant
- Size
- Dual Zone 12000 BTU+12000 BTU
This dual zone mini split delivers 20,000 BTU of cooling and heating across two separate areas. It features a 23 SEER2 efficiency rating and Wi-Fi connectivity for smart control. The system operates quietly at 28 dB and includes self-cleaning functions. It suits homeowners who need flexible temperature control for distinct rooms while maintaining energy efficiency.
Pros
- 23 SEER2 efficiency rating for energy savings
- Dual zone design with 12000 BTU per zone
- Wi-Fi control with Alexa and Google Assistant support
- Quiet operation at 28 dB
- Self-clean function and washable filters
Cons
- Smaller total capacity than 24k or 36k dual zone options
- Heating performance limited to -4°F outdoor temperature
- Requires professional licensed HVAC technician installation
Good fit if
- You need independent temperature control for two rooms
- You want a 20,000 BTU system with high efficiency
- You prefer smart home integration with voice assistants
Skip if
- You require heating operation below -4°F
- You need more than two separate zones
- You prefer a single zone 12,000 BTU unit
Verdict: COSTWAY 20K Dual 2 Zone Mini Split offers balanced efficiency and smart features for two-room comfort. It fits buyers who prioritize Wi-Fi control and quiet operation over maximum heating capacity in extreme cold.
COSTWAY 36k Dual Zone 23 SEER2
Best for: two small rooms needing precise cooling
- Cooling Capacity
- 36000 BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Control
- Wi-Fi
This COSTWAY dual-zone mini split delivers 36,000 BTU of cooling power across two 7,000 BTU indoor units. It features a 23 SEER2 efficiency rating and uses R32 refrigerant with a low GWP of 675. Wi-Fi control allows remote management via smartphone. The outdoor unit operates in temperatures from -13°F to 125°F. It requires professional installation and connects to 208-230V power.
Pros
- High 23 SEER2 energy efficiency rating
- Wi-Fi enabled for smartphone control
- Operates in extreme temperatures (-13°F to 125°F)
- Uses eco-friendly R32 refrigerant
- Independent temperature control for two zones
Cons
- Low per-zone capacity limits use to small rooms
- Requires professional HVAC installation
- No 110V option available
Good fit if
- You need precise cooling for two small spaces
- You want high energy efficiency with Wi-Fi control
- You have a 208-230V electrical supply
Skip if
- You need to cool large rooms or open areas
- You require a standard 110V plug-in unit
- You want to install the system yourself
Verdict: COSTWAY 36k Dual Zone 23 SEER2 is a high-efficiency system for cooling two small rooms independently. It suits buyers who prioritize energy savings and smart control over raw cooling power.
COSTWAY 18k Dual Zone Mini Split
Best for: Two medium rooms needing equal cooling
- Cooling Capacity
- 18,000 BTU
- Efficiency Rating
- 22 SEER2
- Number of Zones
- 2 Zone
- Heat Pump
- Heat mode
- Smart Connectivity
- Smartphone
- Dimensions
- 13.9 × 34.7 × 21.9 inches
This 18,000 BTU dual-zone unit splits capacity into two 7,000 BTU indoor heads. It earns 22 SEER2 efficiency and uses R32 refrigerant with a 675 GWP. The outdoor unit operates between -13℉ and 125℉. You get smartphone control, a 24-hour timer, and five wind speeds. It suits you if you need independent temperature management for two medium-sized rooms.
Pros
- 22 SEER2 energy efficiency rating
- Dual-zone design with 7000 BTU+7000 BTU split
- R32 refrigerant with low 675 GWP
- Outdoor unit operates in -13℉ to 125℉ temperatures
Cons
- Each zone provides only 7,000 BTU, limiting cooling power per room
- No 4-way airflow or vertical swing mentioned for indoor heads
- Smart control requires smartphone app rather than dedicated Wi-Fi remote
Good fit if
- You need to cool two separate rooms with equal capacity
- You want high efficiency with a 22 SEER2 rating
- You live in an area with temperatures between -13℉ and 125℉
Skip if
- You require more than 7,000 BTU for a single room
- You need to control more than two zones simultaneously
- You prefer a unit with 4-way airflow for better air distribution
Verdict: COSTWAY 18k Dual Zone Mini Split offers balanced 7,000 BTU output for two rooms with 22 SEER2 efficiency. It fits you if you need equal cooling for two medium spaces and value low-GWP R32 refrigerant.
COSTWAY 24k Tri 3 Zone Mini Split
Best for: multi-room cooling with 208-230V power
- Cooling Capacity
- 24000 BTU (7k+7k+12k)
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Number of Zones
- 3 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wifi Enabled, Smartphone
This 24,000 BTU 3-zone mini split delivers cooling and heating across three separate rooms. It features a 23 SEER2 efficiency rating and uses R32 refrigerant. The system supports 208-230V power and includes Wi-Fi connectivity for smartphone control. You can adjust temperatures independently in each zone. The outdoor unit operates in climates ranging from -13℉ to 125℉. This model suits larger spaces requiring multi-room climate management.
Pros
- 23 SEER2 energy efficiency rating
- 3-zone independent temperature control
- Wi-Fi smartphone connectivity
- R32 refrigerant with low GWP
- 24-hour timer scheduling
Cons
- Requires professional HVAC installation
- Limited to 208-230V voltage
- No 110V plug-in option listed
Good fit if
- You need to cool three separate rooms
- You have 208-230V electrical service
- You want smartphone control via Wi-Fi
Skip if
- You only need to cool one room
- You require a standard 110V outlet
- You prefer a DIY installation
Verdict: COSTWAY 24k Tri 3 Zone Mini Split is a high-efficiency solution for multi-room cooling. It fits homes with 208-230V power that need independent climate control for three spaces.
Specifications side by side
| Spec | COSTWAY 24000 BTU 230V Mini Split | COSTWAY Blast Pro 18000 BTU 230V | COSTWAY 12,000 BTU 21 SEER2 Mini Split | COSTWAY 20K Dual Zone Mini Split | COSTWAY 12000 BTU 115V Mini Split | COSTWAY 11500 BTU Mini Split | COSTWAY 28K Tri 3 Zone Mini Split | COSTWAY 12000 BTU 21 SEER2 Mini Split | COSTWAY 24k 2-Zone 23 SEER2 | COSTWAY 30k Quad 4 Zone Mini Split | COSTWAY 28K Dual Zone 9000+12000 BTU | COSTWAY 20K Dual 2 Zone Mini Split | COSTWAY 36k Dual Zone 23 SEER2 | COSTWAY 18k Dual Zone Mini Split | COSTWAY 24k Tri 3 Zone Mini Split |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cooling Capacity | 24000BTU | 18,000 BTU | 12,000 BTU | 20000 BTU | 12000 BTU | 11500 BTU | 28000 BTU | 12,000 BTU | 24000 BTU (9000 BTU + 18000 BTU) | 30,000 BTU | 28000 BTU | 20000 BTU | 36000 BTU | 18,000 BTU | 24000 BTU (7k+7k+12k) |
| Efficiency Rating | 18.5 SEER | 20 SEER2 | 21 SEER2 | 23 SEER2 | 24 SEER2 | 17 SEER2 | 20 SEER2 | 21 SEER2 | 23 SEER2 | 23 SEER2 | 20 SEER2 | 23 SEER2 | 23 SEER2 | 22 SEER2 | 23 SEER2 |
| Voltage | 208-230V | 208/230V | 208-230V | not specified | 115V | 208/230V | not specified | 208-230V | 208-230V | 208-230V | 208/230V | not specified | 208-230V | not specified | 208-230V |
| Coverage Area | not specified | Up to 1250 sq.ft. | up to 750 sq.ft. | not specified | not specified | up to 750 square feet | not specified | Up to 750 sq ft | not specified | not specified | not specified | not specified | not specified | not specified | not specified |
| Number of Zones | not specified | not specified | not specified | 2 Zone | not specified | not specified | 3 Zone | not specified | 2 Zone | 4 Zone | 2 Zone | 2 Zone | 2 Zone | 2 Zone | 3 Zone |
| Heat Pump | 2 ton heat pump | Heat pump | 1-ton heat pump | Heat Pump | 1 ton pre-charged heat pump | heater pump | Heat pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat mode | Heat Pump |
| Smart Connectivity | not specified | Wi-Fi, App, Alexa, Google Assistant | not specified | Wi-Fi, Alexa, Google Assistant | App, Alexa, Wi-Fi | Wi-Fi, Alexa, Google Assistant | WiFi, Alexa, Google assistant | not specified | Wifi Enabled, Smartphone | Wifi Enabled | Wi-Fi, Alexa, Google Assistant | Wi-Fi, Alexa, Google Assistant | not specified | Smartphone | Wifi Enabled, Smartphone |
| Smart Control | not specified | Wi-Fi | not specified | not specified | Wi-Fi | not specified | not specified | not specified | Wi-Fi | Wi-Fi | Wi-Fi | not specified | Wi-Fi | not specified | Wi-Fi |
| Size | 24000BTU, 208-230V, 18.5 SEER | not specified | 12000BTU, 208-230V, 21 SEER2 | Dual Zone 9000 BTU+9000 BTU | 12000BTU, 115V, 24 SEER2-WIFI | 11500BTU,208/230V,17 SEER2 | Tri(3) Zone 9k+9k+18k BTU | 12000BTU, 208-230V, 21 SEER2 | Dual Zone 9000 BTU+18000 BTU | Quad (4) Zone 7k+7k+9k+12k BTU | Dual Zone 9000 BTU+12000 BTU | Dual Zone 12000 BTU+12000 BTU | Dual Zone 7000 BTU+7000 BTU | Dual Zone 7000 BTU+7000 BTU | Tri(3) Zone 7k+7k+12k |
| Dimensions | 9 × 44.5 × 13 inches | 7.68 × 35.8 × 12 inches | 8 × 30 × 11.5 inches | 7.48 × 31.9 × 12.1 inches | 12 × 32.5 × 8 inches | 9.8 × 30.5 × 8.2 inches | 7.48 × 31.9 × 12.1 inches | 8 × 30 × 11.5 inches | 13.9 × 34.7 × 21.9 inches | 17.9 × 41.2 × 31.8 inches | 7.48 × 31.9 × 12.1 inches | 7.48 × 31.9 × 12.1 inches | 17.9 × 41.2 × 31.8 inches | 13.9 × 34.7 × 21.9 inches | 13.9 × 34.7 × 21.9 inches |
| Weight | 68 pounds | 20.9 pounds | 17.5 pounds | not specified | 28.5 pounds | 24 pounds | not specified | 60 pounds | not specified | not specified | not specified | not specified | not specified | not specified | not specified |
| Color | White | White | 12000BTU, 208-230V, 21 SEER2 | White | White | White | White | Gray | White | White | White | White | White | White | White |
| Model | 10153-CYJV | Blast Pro | 10418US-CYFP | B0GQ9JCQZH | 10895US-WH-CYFP | 10153-CYJV | not specified | 10028a-CYFP | not specified | B0F92G2NKW | B0GQ91GZLD | B0GQ98PPBT | B0F91FTFQS | 3fdb420a-dfcf-4a19-8bf2-2ea31ec7364d | not specified |
COSTWAY Mini Split Options Compared
You can choose between standard 115V units or higher-voltage 208-230V systems. The 115V COSTWAY 12000 BTU Mini Split plugs into standard outlets, while the COSTWAY Blast Pro 18000 BTU 230V requires dedicated circuits. Higher voltage models like the 24000 BTU Mini Split deliver stronger cooling for larger spaces.
Efficiency ratings range from 17 SEER2 to 24 SEER2. The COSTWAY 12000 BTU 115V Mini Split leads with 24 SEER2, while the Blast Pro offers 20 SEER2. You can also select multi-zone systems for independent room control. Choose based on your voltage availability and desired energy savings.
Where COSTWAY fits
COSTWAY covers single-zone to quad-zone layouts. You can find units as small as 11,500 BTU and as large as 36,000 BTU. The lineup includes dual-zone, tri-zone, and quad-zone configurations for multiple rooms. Most indoor units are white, with one gray option available. You will see Wi-Fi connectivity on many models, though the smallest 115V unit is the only one explicitly noted for standard plug-in convenience. There are no smart thermostats or multi-brand integrations listed. The range focuses on independent zone control rather than whole-home centralization.
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How to Choose the Right Mini Split
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Check Voltage Requirements
Match the unit voltage to your home’s electrical setup. The COSTWAY 12000 BTU 115V Mini Split uses standard outlets, making it easy to install without new wiring. Other models, like the COSTWAY 24000 BTU Mini Split, require 230V power. You must verify your circuit capacity before buying. Using the wrong voltage can damage the unit or void the warranty. Always check the specifications sheet for the exact voltage rating to ensure compatibility with your existing electrical infrastructure.
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Evaluate SEER2 Ratings
Higher SEER2 ratings indicate better energy efficiency. The COSTWAY 12000 BTU 115V Mini Split offers a 24 SEER2 rating, which saves more electricity than the COSTWAY 11500 BTU Mini Split at 17 SEER2. You should compare these numbers to estimate long-term operating costs. A higher rating means lower bills, but the upfront price may be higher. Look for the SEER2 value in the specs to understand how much energy the unit consumes during typical cooling cycles.
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Select the Right Zones
Decide how many rooms you need to control independently. Single-zone units cool one space, while dual-zone models like the COSTWAY 20K Dual Zone Mini Split handle two rooms. Tri-zone and quad-zone systems, such as the COSTWAY 30k Quad 4 Zone Mini Split, manage up to four areas. Each zone has its own indoor unit. You should match the number of zones to your layout. More zones offer flexibility but increase installation complexity and cost.
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Match Cooling Capacity
Choose a BTU rating that fits your room size. Small rooms may only need 7,000 BTU, while large spaces require 24,000 BTU or more. The COSTWAY 12000 BTU 21 SEER2 Mini Split is suitable for rooms up to 750 sq. ft. Oversizing leads to short cycling, while undersizing fails to cool effectively. Check the square footage recommendations in the product specs. Ensure the total BTU output matches the thermal load of your specific environment.
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Consider Smart Features
Wi-Fi connectivity allows remote control via smartphone apps. The COSTWAY Blast Pro 18000 BTU 230V includes Wi-Fi for convenient management. You can adjust temperatures from anywhere, which adds comfort and potential energy savings. Not all models include this feature, so verify the attributes list. Smart control lets you schedule operations and monitor usage. If you value convenience, prioritize units with explicit Wi-Fi support in their specifications.
Frequently asked questions
What is the most efficient COSTWAY mini split available?
The COSTWAY 12000 BTU 115V Mini Split holds the highest efficiency rating at 24 SEER2. This model uses standard 115V outlets, making it ideal for single rooms where energy savings are a priority. Other high-efficiency options include the 23 SEER2 dual-zone models, which balance power and efficiency for larger spaces.
Which COSTWAY mini split is best for a 750 square foot room?
The COSTWAY 12000 BTU 21 SEER2 Mini Split is specifically noted for covering up to 750 square feet. It operates on 208-230V power and features a 21 SEER2 efficiency rating. This unit is designed for medium rooms where you need quiet operation and strong energy savings without relying on standard plug-in convenience.
Does COSTWAY offer dual-zone mini splits for different room sizes?
Yes, several models support dual-zone configurations with unequal capacities. The COSTWAY 24k 2-Zone 23 SEER2 splits power into 9,000 BTU and 18,000 BTU zones. Another option is the 28K Dual Zone model, which combines 9,000 BTU and 12,000 BTU outputs. These allow independent temperature control for rooms with different cooling needs.
Can I install a COSTWAY mini split using a standard outlet?
Only the COSTWAY 12000 BTU 115V Mini Split uses standard 115V outlets. Most other models, including the 24000 BTU and Blast Pro versions, require 208-230V dedicated circuits. If you need plug-in convenience, the 115V model is your only choice, though it sacrifices some raw cooling capacity compared to higher-voltage units.
What is the largest multi-zone system in the COSTWAY lineup?
The COSTWAY 30k Quad 4 Zone Mini Split supports four independent zones. It distributes power as 7,000 BTU, 7,000 BTU, 9,000 BTU, and 12,000 BTU across different rooms. This system offers 23 SEER2 efficiency and Wi-Fi control, making it suitable for large homes needing complex multi-room climate management.
Are there gray indoor units available in the COSTWAY collection?
Yes, the COSTWAY 12000 BTU 21 SEER2 Mini Split comes in a gray color. Most other models in the lineup, including the top picks and dual-zone units, are white. This gray option is a high-efficiency solution for medium rooms with 208-230V power, prioritizing quiet operation and energy savings.
Which COSTWAY model is best for cooling two equal-sized rooms?
The COSTWAY 20K Dual 2 Zone Mini Split provides balanced 12,000 BTU output for each of the two zones. It is designed for two-room comfort with smart Wi-Fi control. This model fits buyers who want equal cooling for medium spaces and value quiet operation over maximum heating capacity in extreme cold.