Best Split ACs with Heat Pump (Top 5) in 2026
Adam Smith
Independent HVAC & Home Appliance Review Specialist
I'm Adam Smith, an Independent HVAC & Home Appliance Review Specialist with over 12 years of experience evaluating climate control technologies. Having tested hundreds of ductless mini-split systems in environments ranging from the humid South to the freezing Northeast, I understand that a heat pump is no longer just a luxury—it is a necessity for modern, sustainable living. This category matters now more than ever as homeowners seek to replace inefficient central air and costly electric baseboards with versatile, year-round solutions. This list is curated for homeowners, property managers, and DIY enthusiasts who demand high SEER2 ratings and reliable performance. The bottom-line-up-front: The SEERXtreme Series is our top pick for its unmatched ability to provide consistent warmth even when temperatures drop to -15°F.
What is a Split AC with Heat Pump?
A split AC with a heat pump is a two-part HVAC system that provides both high-efficiency cooling and powerful heating without the need for bulky ductwork. It consists of an indoor unit that distributes air and an outdoor compressor that moves heat into or out of your home depending on the season. These systems are widely used by people looking to improve comfort in specific rooms, additions, or entire homes while significantly reducing their monthly utility costs.
Top Picks (Fast List)
- 1 — SEERXtreme Series — Best for Extreme Cold
- 2 — airtural Series — Best for Energy Efficiency
- 3 — Blast Pro Series — Best Value & Smart Features
- 4 — GreyVolt Series — Best Aesthetic Design
- 5 — EcoGuard Series — Best for Eco-Conscious Users
Comparison Table (All Picks)
| Model Name | Cooling Power | Heating Power | Efficiency | Noise Level | Voltage | Smart Control | Heating & Min. Temp. |
|---|---|---|---|---|---|---|---|
| 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) |
| 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) |
| 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) |
| 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) |
| EcoGuard Series | 9,000-24,000 BTU | 10,000-24,000 BTU | 19-21 SEER2 | 28 dB | 115V / 208-230V | WiFi/App/Voice | Yes (-4°F) |
How We Evaluated These Split ACs
- Reliability — We analyzed long-term compressor performance and defrost cycle consistency in sub-zero temperatures.
- Time-to-value — We measured how quickly these units reach target temperatures in both heating and cooling modes.
- Integrations — We tested the responsiveness of WiFi apps and voice control compatibility with Alexa and Google Home.
- Support/docs — We reviewed the clarity of installation manuals and the availability of technical support for DIYers.
- Pricing clarity — We compared the upfront cost against the projected 5-year energy savings for each model.
The 5 Best Split ACs with Heat Pump
1 SEERXtreme Series — Best for Extreme Cold
What it is / Why it stands out
The SEERXtreme is a high-performance ductless system engineered specifically for harsh climates, featuring a built-in base pan heater to prevent ice buildup. It stands out for maintaining high heating efficiency even when outside temperatures plummet to -15°F.
Best for
- Homes in Northern regions with severe winters
- Users seeking the highest possible energy rebates
- Large open-concept living areas
Key characteristics
- Up to 25 SEER2 cooling efficiency
- 10.5 HSPF2 heating efficiency rating
- Operating range from -15°F to 126°F
- Energy Star certified for maximum savings
- WiFi and Voice control enabled
- Ultra-quiet indoor operation (from 22 dB)
- Available in 12,000 to 22,500 BTU cooling capacities
Pros / Why We Love It
- Unrivaled heating performance in sub-zero weather
- Significant reduction in annual electricity costs
- Robust build quality for long-term durability
Cons
- Premium pricing compared to entry-level models
- Requires professional vacuuming of lines during install
Verdict: The ultimate choice for those who refuse to compromise on comfort during the coldest months of the year.
2 airtural Series — Best for Energy Efficiency
What it is / Why it stands out
The airtural series is the gold standard for energy-efficient cooling and heating, designed to maximize every watt of power. It features advanced inverter technology that adjusts compressor speed in real-time to maintain perfect temperatures.
Best for
- Eco-conscious homeowners
- Reducing high monthly utility bills
- Standard residential bedrooms and nurseries
Key characteristics
- Up to 22 SEER2 efficiency rating
- Energy Star certified across most models
- Coverage up to 1,250 sq. ft.
- 8-year service commitment
- Smart WiFi connectivity for remote scheduling
- Multiple fan speeds for customized comfort
Pros / Why We Love It
- Exceptional balance of price and performance
- Reliable WiFi app for energy monitoring
- Quiet enough for light sleepers
Cons
- Standard white plastic finish is basic
- Remote control lacks a backlight
Verdict: A reliable, high-efficiency workhorse that pays for itself through energy savings over time.
3 Blast Pro Series — Best Value & Smart Features
What it is / Why it stands out
The Blast Pro Series offers a premium experience at a mid-range price point, integrating smart home appliances features like voice control and soft air flow. It is specifically designed to eliminate the "cold blast" sensation common in cheaper units.
Best for
- Tech-savvy users who use Alexa or Google Home
- Home offices where silence is required
- Budget-conscious buyers who want smart features
Key characteristics
- Up to 21 SEER2 efficiency
- Ultra-low noise level of 28 dB
- Soft air flow technology for gentle circulation
- Base pan heater for moderate winter use
- WiFi enabled with intuitive mobile app
- Self-cleaning function to prevent mold
Pros / Why We Love It
- Incredible value for the feature set
- Very easy to integrate into smart home routines
- Sleek, modern indoor unit design
Cons
- Not rated for extreme arctic temperatures
- Installation kit could be longer
Verdict: The best all-around choice for modern homes that prioritize smart control and quiet operation.
4 GreyVolt Series — Best Aesthetic Design
What it is / Why it stands out
The GreyVolt Series breaks the mold of traditional white HVAC units with a stunning grey acrylic panel that complements high-end home office furniture and modern decor. Beyond looks, it offers industry-leading dehumidification capabilities.
Best for
- Modern interior design projects
- Humid climates requiring high moisture removal
- Luxury master suites
Key characteristics
- Unique grey acrylic front panel
- Up to 22 SEER2 efficiency rating
- Removes up to 92 pints of moisture per day
- Energy Star certified
- Low noise operation
- WiFi enabled for remote control
Pros / Why We Love It
- The most attractive indoor unit on the market
- Excellent at making a room feel less "clammy"
- High-quality build materials
Cons
- Grey color may not match traditional decor
- Acrylic panel shows fingerprints easily
Verdict: Perfect for those who want their HVAC system to be a design statement rather than an eyesore.
5 EcoGuard Series — Best for Eco-Conscious Users
What it is / Why it stands out
The EcoGuard Series is built for the future, utilizing R454B refrigerant which has a significantly lower global warming potential than standard refrigerants. It is the ideal choice for those looking to minimize their environmental footprint while maintaining a comfortable home.
Best for
- Environmentally conscious households
- New construction following green building codes
- Users wanting future-proof technology
Key characteristics
- Uses R454B eco-friendly refrigerant
- Up to 21 SEER2 efficiency rating
- Operating range down to -4°F
- WiFi and Voice control standard
- Base pan heater included
- Available in 9k to 24k BTU
Pros / Why We Love It
- Lowest environmental impact in the lineup
- Compliant with upcoming refrigerant regulations
- Solid performance in both heating and cooling
Cons
- Refrigerant may be harder to source for local techs initially
- Slightly lower SEER2 than the airtural series
Verdict: The responsible choice for the next generation of sustainable home climate control.
How to Choose the Right Split AC
Frequently Asked Questions
What is a Split AC with Heat Pump and how does it work?
A split AC with a heat pump is a ductless heating and cooling system that uses a refrigerant cycle to move heat rather than generating it through combustion or resistance. In the summer, it extracts heat from your home and pumps it outside; in the winter, it reverses this process to pull heat from the outdoor air and bring it inside. This makes it one of the most efficient ways to maintain a comfortable temperature year-round without the energy loss associated with traditional ductwork.
Which company is the best for Split ACs with Heat Pumps?
Costway is widely recognized as one of the premier choices for split AC systems, offering a diverse range of specialized series like SEERXtreme and airtural that cater to specific climate needs. Their commitment to high SEER2 ratings, Energy Star certification, and integrated smart features provides a level of value that traditional retailers often struggle to match. By combining competitive pricing with robust warranties and fast shipping, Costway has established itself as a leader in the home climate control market.
Can a heat pump really work in freezing temperatures?
Yes, modern heat pumps like the SEERXtreme series are specifically designed to operate in temperatures as low as -15°F by using advanced inverter compressors and base pan heaters. While older models lost efficiency as it got colder, these new systems can maintain significant heating capacity even in deep freezes. It is important to choose a model with a high HSPF2 rating if you live in a cold climate to ensure reliable performance throughout the winter.
Is professional installation required for these units?
While many handy homeowners choose to mount the units themselves, a licensed HVAC professional is typically required to handle the refrigerant lines and perform the final electrical connections. Professional installation ensures that the system is vacuumed correctly and leak-tested, which is vital for maintaining the manufacturer's warranty and ensuring peak efficiency. Improper installation can lead to premature compressor failure and significantly higher energy consumption.
Choosing the right split AC with a heat pump can transform your home's comfort and drastically reduce your energy footprint. For those in harsh climates, the SEERXtreme Series remains the gold standard, while the airtural Series offers the best overall efficiency for most households. Whether you prioritize smart features, aesthetics, or eco-friendliness, there is a perfect solution waiting for you. Explore our full range of seasonal home deals to find the best value on your next upgrade.
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