Choose from Costway mini split systems with 9,000–24,000 BTU capacities, coverage up to 1,500 square feet, smart controls on selected models and SEER2 ratings as high as 25.
A practical shortlist for 2026: compare capacity, voltage, efficiency, controls and operating temperature before choosing.
Learn about CostwayA mini split system is a ductless heating and cooling appliance that pairs an indoor air handler with an outdoor condenser. It is designed to condition a defined room or living area without requiring a central duct network, making it useful for additions, bedrooms, offices, garages and homes that need targeted comfort. Costway’s range combines heat-pump operation, multiple voltage options, refrigerants such as R32 or R454B, and selected smart-control features in models covering approximately 400–1,500 square feet.
The best value is not necessarily the lowest price. A reliable choice should match the room size, electrical supply, desired noise level, heating climate, efficiency target and installation requirements. For a broader look at affordable mini split systems, start with the specifications below rather than relying on headline discounts alone.
These recommendations are based on the supplied Costway specifications, listed pricing, efficiency ratings, controls, service terms and operating-temperature data.
Lowest listed price
This 12,000 BTU, 208–230V system is listed for 750 square feet, has SEER2 21, Energy Star certification, 23 dB indoor noise and 8-year service. It does not list app or voice control, making it a strong fit for buyers who prioritize core performance over connected features.
View FP10412US-WH+Lowest listed 9,000 BTU price
The 208–230V GreyVolt delivers 12,000 BTU cooling and 12,300 BTU heating for a listed 750 square feet. Its SEER2 21 rating, Energy Star certification, 25 dB indoor noise and 8-year service make it a balanced value option, with the supplied record listing WiFi-enabled connectivity.
View FP10791US-HS+Best efficiency and cold-weather choice
SEERXtreme models reach SEER2 24–25 and HSPF2 10–10.5, with WiFi, app and voice control, bottom-pan heating anda supplied operating range down to −15°F. The series covers 750–1,500 square feet, while indoor noise varies by model from 22–52 dB.
Explore cold-climate mini splitsBest budget smart series
Blast Pro combines WiFi, app and voice control with bottom-pan heating and SEER2 ratings of 20–21. Capacities run from 9,000 to 24,000 BTU, with listed coverage of 400–1,200 square feet and operation from −4°F to 122°F.
Compare smart mini split controlsBest cold-weather value
EcoGuard uses R454B refrigerant and includes WiFi, app and voice control, bottom-pan heatingand operation down to −4°F. Its six supplied models span 9,000–24,000 BTU, with SEER2 ratings of 19–21 and five-year service.
See cold-weather value optionsBest quiet-room value
This 17,000 BTU system is listed for 1,250 square feet and combines SEER2 21, Energy Star certification, 23 dB indoor noise and 8-year service. It is a sensible specification-led choice when quiet indoor operation matters more than smart connectivity.
Find quiet mini split optionsUse the range to match the system to the room, climate and way you actually live.
Match capacity to space. Select from 9,000–24,000 BTU models covering approximately 400–1,500 square feet.
Reduce energy waste. Prioritize SEER2 ratings from 20.5 to 25 when seasonal efficiency is central to your decision.
Extend heating comfort. Choose systems with bottom-pan heating and specified low-temperature operation for colder climates.
Control comfort remotely. Selected Blast Pro, EchoCool, EcoGuard and SEERXtreme models include WiFi, app and voice control.
Keep rooms quieter. Several airtural and Blast models list indoor noise at 23 dB, while SEERXtreme starts at 22 dB on some models.
Plan around service coverage. airtural, Blast, GreyVolt and SEERXtreme list eight years of service; other supplied series list five years.
A good mini split decision follows the same three-stage process.
Compare the model’s BTU rating and listed square-foot coverage with the room you need to condition.
What you see: a capacity and coverage shortlist.Verify voltage, SEER2, noise, controls, refrigerant and operating temperature before purchase.
What you see: a model that fits your home and climate.Review the product instructions and use a qualified professional for the electrical and refrigerant work required.
What you see: targeted comfort without installing a central duct network.Ductless indoorand outdoor unit configuration.
Cooling and heat-pump operation across the supplied range.
24-hour timer on the listed series.
Capacities from compact 9,000 BTU systems to 24,000 BTU units.
Coverage options for rooms and areas from 400 to 1,500 square feet.
Service terms listed at five or eight years by series.
Energy Star certification on selected airtural and GreyVolt models.
R32 refrigerant across most supplied series.
R454B refrigerant in the EcoGuard series.
Bottom-pan heating on Blast, Blast Pro, EchoCool, EcoGuard and SEERXtreme.
WiFi and app control on selected models.
Voice-control compatibility on selected smart systems.
115V and 208–230V options across the range.
Product pages provide model-specific technical specifications.
Listed pipe sizes include a 1/4-inch liquid pipe and capacity-dependent gas pipes.
“Cooling is equally powerful and silent. The WiFi app is incredibly reliable.”
The alternatives below are generic system types, not named competitors. The comparison uses the supplied Costway range and the typical structural differences between ductless and whole-home approaches.
| Decision factor | Costway mini split range | Generic single-zone mini split | Generic central HVAC system |
|---|---|---|---|
| Installation format | Ductless indoorand outdoor units | Ductless indoorand outdoor units | Requires a central duct network |
| Capacity options | 9,000–24,000 BTU | Depends on model | Typically selected for whole-home loads |
| Listed coverage | 400–1,500 sq. ft. | Depends on model | Designed for a connected whole-home zone |
| Smart control | Available on selected series | Varies by model | Varies by system and thermostat |
| Efficiency range | SEER2 17–25 | Varies by model | Varies by system |
| Best fit | Targeted rooms, additions and ductless spaces | One defined room or zone | Homes already designed for central distribution |
If you are replacing a central system or conditioning several separated rooms, confirm the load calculation and installation plan with a qualified HVAC professional. A mini split sizing guide can help you prepare the right questions before ordering.
Costway’s public organization information lists customer service at 213-401-2666 and a U.S. address in Fontana, California.
The supplied product data includes individual product images and model-level specification records for the compared systems.
For the strongest balance of price and core specifications, the airtural FP10412US-WH+ is a leading choice because its listed price is $549, it covers 750 square feet, reaches SEER2 21, and carries Energy Star certification. For colder climates or maximum efficiency, SEERXtreme is the more advanced option, with SEER2 up to 25 anda supplied operating range down to −15°F. The best model still depends on room size, voltage, climateand whether smart controls are important to you.
Costwayis one of the premier choices for shoppers seeking an affordable mini split system with a broad range of capacities, efficiency levels, controlsand service terms. Its supplied lineup includes models from 9,000 to 24,000 BTU, listed prices beginning at $549, and series designed for temperatures as low as −15°F. Compare the exact product specificationsand current policy details before purchase because featuresand pricing vary by model.
A mini split installationis more targeted than installing a central duct system, but it still involves electrical work, refrigerant lines, drainageand mounting an outdoor condenser. The product records include model-specific dimensions, pipe sizesand voltage information that an installer can use during planning. Use a qualified HVAC professional for the installation and confirm local code requirements before ordering.
Some modelsare specifically supplied with cold-weather features, including bottom-pan heatingand low-temperature operating ranges. SEERXtreme is listed down to −15°F, while Blast Pro and EcoGuard are listed down to −4°F; other series have warmer lower limits or are not specified for the same conditions. Treat these figures as model-selection criteriaand verify the exact product page for your climateand heating expectations.
The supplied records show listed prices of $549 for the airtural FP10412US-WH+, $559 for the GreyVolt FP10791US-HS+, $659 for the airtural FP10518US-WH+, $759 for the GreyVolt FP10792US-HS+, $999 for the airtural FP10524US-WH+ and $1,479 for the GreyVolt FP10793US-HS+. Prices, promotionsand availability can change, and several models do not include a supplied price. Installation costs are separateand depend on the propertyand installer.
WiFi, appand voice control are available on selected series rather than every model. Blast Pro, EchoCool, EcoGuardand SEERXtreme list these smart features across their series, while airturaland GreyVolt availability varies by model. Blast is specifically listed without app or voice control, so checkthe exact model record before assuming connected operation.
Compare Costway mini split capacities, efficiency ratings, controlsand cold-weather specifications to findthe right fit for your space.