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📦 AVAILABILITY NOTICE:
This product is expected to arrive in the MrCool Warehouse by the end of July 2025. Pre-Order will be available soon—reserve yours early to ensure priority shipment!
MRCOOL® DIY® 5th Gen 27K BTU Dual-Zone Mini-Split (12K + 18K)
High-Capacity Comfort. Easy DIY Installation. Smart Dual-Zone Climate Control.
Take full control of your indoor comfort with the MRCOOL® DIY® 5th Generation 27,000 BTU Multi-Zone Ductless Mini-Split System, featuring one 12,000 BTU and one 18,000 BTU wall-mounted air handler. Designed to efficiently heat and cool two large zones—up to 1,350 sq. ft. combined—this advanced system is perfect for living rooms, master bedrooms, home offices, or studios.
With a top-tier 23 SEER2 efficiency rating and true DIY installation, this mini-split gives you the powerful performance of a professional HVAC system—without the high cost of professional installation.
🔧 DIY Installation – No Special Tools or Training Required
The system features Quick Connect® line sets pre-charged with R-454B refrigerant, allowing you to install your system using standard tools. No vacuuming, gauges, or professional HVAC licenses needed.
📹 Follow easy video instructions and install your MRCOOL DIY system in just a few hours!
🌡️ Powerful Year-Round Performance
Enjoy efficient cooling in the summer, cozy warmth in the winter, and balanced humidity during the rainy seasons. This dual-zone system includes two high-capacity indoor units:
12K BTU Air Handler: Cools/heats up to 550 sq. ft.
18K BTU Air Handler: Cools/heats up to 800 sq. ft.
Reversible heat pump for heating even in temps as low as -13°F
Dry Mode, Sleep Mode, and Auto Mode for optimal climate control and energy savings
📲 Smart Home Compatible & App Controlled
Control your system anytime, anywhere with the MRCOOL SmartHVAC® app on your Apple or Android device. Prefer voice control? This unit works seamlessly with Amazon Alexa and Google Assistant.
You can also control each zone with the included remote or monitor performance and alerts from the built-in LED display on each air handler.
🧠 Intelligent Features for a More Comfortable Home
Follow Me® Technology adjusts temperature based on remote location
Filter change reminders and diagnostic alerts keep your system in peak condition
Auto Restart remembers your settings after power outages
Timer Function allows scheduled operation to reduce energy waste
Mute Mode disables lights and alerts for quiet operation at night
🧩 Expandable & Flexible Configuration
This 27K BTU system supports up to three indoor units. For larger spaces, consider the MRCOOL DIY 36K BTU Multi-Zone System, which supports up to five zones—perfect for whole-home climate control.
✅ Key Features
Easy DIY® Installation with Pre-Charged Line Sets
Dual-Zone System: 12K + 18K BTU Air Handlers
SEER2 23 | Energy-Efficient Inverter Compressor
R-454B Refrigerant – Eco-Safe & Efficient
SmartHVAC App + Alexa & Google Home Compatibility
Gold Fin® Condenser – Anti-Corrosion & Coastal Ready
Quiet Operation with Mute Function
Low Ambient Cooling for Year-Round Comfort
100% Sealed System for Clean, Leak-Free Performance
Lifetime Technical Support
7-Year Compressor Warranty | 5-Year Parts Warranty
Optional Lifetime Compressor Warranty with MRCOOL® Care Registration
Say goodbye to overpriced installations and hello to smart, powerful comfort.
Get the MRCOOL® DIY® 27K BTU 12K + 18K Dual-Zone Mini-Split System and enjoy fast, efficient, and flexible heating and cooling that you can install yourself.