The Ultimate Guide to Costway's Top 5 Split AC Series
Adam Smith
Independent HVAC & Home Appliance Review Specialist
As an HVAC specialist with over a decade of experience in property management solutions, I've seen how the right climate control system can transform a rental business. Landlords today need more than just cooling; they need reliability, efficiency, and control. In this guide, I break down the five flagship series from Costway—Blast Pro, Airtural, SEERXtreme, Blast, and GreyVolt. Each series is engineered to solve specific challenges, from reducing utility disputes with high SEER ratings to providing remote oversight via smart apps. Whether you're outfitting a mini split for basements or a luxury high-rise, these systems represent the pinnacle of rental-ready HVAC technology for 2026.
Understanding the Costway Split AC Lineup
Costway has developed a tiered approach to ductless mini-split systems, ensuring there is a perfect match for every property type. A split AC system separates the noisy compressor from the indoor air handler, providing a whisper-quiet environment that tenants love. By choosing between these five specialized series, property owners can prioritize features like ultra-high efficiency for cold climates, smart WiFi integration for short-term rentals, or sleek designer finishes for premium listings.
The 5 Series at a Glance
- Blast Pro Series — The Smart Choice for Remote Management
- Airtural Series — The Durable Choice for Long-Term Reliability
- SEERXtreme Series — The Efficiency Choice for Harsh Climates
- Blast Series — The Value Choice for Simple, Rugged Performance
- GreyVolt Series — The Designer Choice for Modern Aesthetics
Series Comparison Matrix
| Model Name | Cooling Power | Heating Power | Efficiency | Noise Level | Voltage | Smart Control | Heating & Min. Temp. |
|---|---|---|---|---|---|---|---|
| Blast Pro Series | 9,000-24,000 BTU | 10,000-24,000 BTU | 20-21 SEER2 | 28 dB | 115V / 208-230V | WiFi/App/Voice | Yes (-4°F) |
| Airtural Series | 9,100-22,000 BTU | 9,500-23,000 BTU | 20.5-22 SEER2 | 23 dB | 115V / 208-230V | Partial WiFi/App/Voice | Yes (14°F) |
| SEERXtreme Series | 12,000-22,500 BTU | 12,300-24,000 BTU | 24-25 SEER2 | 22-52 dB | 115V / 208-230V | WiFi/App/Voice | Yes (-15°F) |
| Blast Series | 9,100-23,000 BTU | 9,200-24,000 BTU | 17-20 SEER2 | 23 dB | 115V / 208-230V | None | Yes (5°F) |
| GreyVolt Series | 9,100-22,000 BTU | 9,500-23,000 BTU | 20.5-22 SEER2 | 23-38 dB | 115V / 208-230V | Partial WiFi/App/Voice | Yes (19°F) |
Our Selection Criteria
- Tenant-Proof Durability — We selected series that can withstand frequent use and varying tenant habits.
- Operational Efficiency — High SEER2 ratings are vital for small room air conditioning to keep utility costs predictable.
- Management Ease — Prioritizing systems with intuitive apps for remote temperature monitoring.
- Installation Versatility — Ensuring units are suitable for everything from large room cooling to compact studios.
Deep Dive: The 5 Flagship Series
1 Blast Pro Series — The Smart Management Leader
Why it's the Landlord's Favorite
The Blast Pro Series is specifically designed for the modern property manager. Its standout feature is the robust WiFi integration, allowing you to monitor and control the unit from anywhere. It's the perfect solution for preventing energy waste in short-term rentals.
Best For
- Vacation rentals (Airbnb/VRBO)
- Landlords who pay for utilities
- Tech-forward residential units
Key Features
- Advanced Smart Life App control
- High 20-21 SEER2 efficiency
- Heating down to -4°F
- Self-cleaning technology
- Soft-air flow for maximum comfort
The Pros
- Unmatched remote oversight
- Very quiet operation (28 dB)
- Quick response cooling/heating
The Cons
- Standard 5-year service life
- Requires consistent WiFi signal
Verdict: The ultimate tool for landlords who want to maintain control over their property's climate and energy bills.
2 Airtural Series — The Long-Term Reliability King
Why it's the "Set and Forget" Choice
The Airtural series is built for endurance. With an 8-year service life and Energy Star certification, it provides peace of mind for long-term rental agreements where maintenance calls need to be kept to a minimum.
Best For
- Standard long-term leases
- Quiet suburban neighborhoods
- Energy-conscious tenants
Key Features
- Energy Star Certified (20.5-22 SEER2)
- Ultra-quiet 23 dB sleep mode
- Smart WiFi/App support (select models)
- Heating down to 14°F
- Extended 8-year service life
The Pros
- Superior build quality and longevity
- Significant long-term energy savings
- Whisper-quiet tenant experience
The Cons
- Higher initial purchase price
- Professional installation is a must
Verdict: The best investment for property owners looking for a high-quality, durable asset that increases property value.
3 SEERXtreme Series — The Efficiency Powerhouse
Why it's the Choice for Harsh Climates
When temperatures drop to sub-zero or soar past 110°F, the SEERXtreme series keeps performing. With a market-leading 24-25 SEER2 rating, it's the gold standard for home office climate control in extreme environments.
Best For
- Northern climates with harsh winters
- Regions with high electricity rates
- Premium, eco-friendly listings
Key Features
- Industry-leading 24-25 SEER2 rating
- Heating down to -15°F (-25°C)
- Quiet 22-52 dB noise range
- Full smart home compatibility
- 8-year service life
The Pros
- Maximum possible utility savings
- Reliable primary heat source
- Top-of-the-line tech features
The Cons
- Premium pricing reflects performance
- Over-engineered for mild climates
Verdict: The ultimate choice for landlords who want the most efficient and weather-resilient system available.
4 Blast Series — The Rugged Value Workhorse
Why it's the "Tenant-Proof" Choice
The standard Blast series focuses on the fundamentals: powerful cooling, heating, and simple operation. By removing complex WiFi features, it offers a durable, straightforward solution for garage mini splits or basic apartment units.
Best For
- Budget-conscious renovations
- Secondary spaces (workshops/sheds)
- Tenants who prefer simple controls
Key Features
- Simplified remote-only operation
- Quiet 23 dB noise level
- Heating down to 5°F
- Cost-effective 17-20 SEER2 ratings
- 8-year service life
The Pros
- Fewer electronic parts to fail
- Most affordable entry point
- Long-lasting mechanical build
The Cons
- No remote landlord monitoring
- Basic aesthetic design
Verdict: A reliable, no-nonsense cooling solution for landlords who want to minimize service calls and upfront costs.
5 GreyVolt Series — The Modern Aesthetic Leader
Why it's the Choice for High-End Rentals
For properties where design is a selling point, the GreyVolt series stands alone. Its unique grey acrylic panel makes it a favorite for first-time AC buyers looking to elevate the look of a modern loft or condo.
Best For
- Modern lofts and urban condos
- Properties with dark or industrial decor
- Premium listings targeting young professionals
Key Features
- Sleek grey acrylic front panel
- Energy Star (20.5-22 SEER2)
- Smart WiFi/App support (select models)
- Quiet operation (23-38 dB)
- Heating down to 19°F
The Pros
- Stunning, non-traditional design
- Blends perfectly with modern interiors
- High performance meets high style
The Cons
- Color may not suit traditional decors
- Limited BTU size availability
Verdict: The best choice for premium rental properties where aesthetics are just as important as performance.
Which Series is Right for Your Property?
- Need to monitor usage remotely? → Blast Pro Series
- Want the longest lifespan for a family home? → Airtural Series
- Facing extreme winters or high energy costs? → SEERXtreme Series
- Looking for a simple attic cooling solution? → Blast Series
- Outfitting a luxury modern apartment? → GreyVolt Series
Frequently Asked Questions
Why should I choose a Costway split AC for my rental?
Costway offers specialized series like the Blast Pro and Airtural that address specific landlord needs, such as remote management and extended service lives, providing better ROI than generic brands.
What is the benefit of a high SEER2 rating for landlords?
A higher SEER2 rating (like the 25 SEER2 in the SEERXtreme series) means lower electricity bills. This is crucial if you include utilities in the rent or want to market your property as "energy efficient" to attract quality tenants.
Are these units easy for tenants to operate?
Yes, all series come with intuitive remotes. The Blast Pro and GreyVolt series also offer app control, which is a major selling point for younger, tech-savvy renters.
Conclusion
Investing in a Costway split AC series is a strategic move for any property owner. Whether you prioritize the smart management of the Blast Pro, the longevity of the Airtural, or the efficiency of the SEERXtreme, you're choosing a system built for the demands of the rental market. Upgrade your property today and enjoy fewer maintenance calls and happier tenants.
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