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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 27,000 BTU Dual-Zone Mini-Split System (12K + 12K)
DIY Installation. Dual-Zone Power. Year-Round Comfort.
Experience whole-home comfort with the MRCOOL® 5th Generation DIY® 27K BTU Dual-Zone Ductless Mini-Split System—the perfect heating and cooling solution for two medium-to-large rooms. This system includes two 12,000 BTU wall-mounted air handlers, each capable of efficiently conditioning up to 550 sq. ft., making it ideal for bedrooms, living rooms, offices, or home studios.
With an energy-efficient 22 SEER rating, eco-friendly refrigerant, and no need for professional installation, this mini-split gives you complete control over your indoor climate—and your budget.
🔧 Install It Yourself – No HVAC License Needed
The MRCOOL DIY® Series is engineered for fast, straightforward setup. The included pre-charged Quick Connect® line sets are filled with R-454B refrigerant and require no vacuuming, brazing, or special tools.
📹 Follow the included video tutorials to complete installation quickly and confidently—all on your own.
🌡️ Powerful, Energy-Efficient Performance
Designed for multi-room comfort, the MRCOOL DIY 27K system delivers heating, cooling, and dehumidification year-round. Whether it's sweltering summer heat or a chilly winter night, this system is ready.
Dual 12K BTU Air Handlers for up to 1,100 sq. ft. of total coverage
Reverse-cycle heat pump works in temperatures down to -13°F
Dry Mode reduces indoor humidity
Auto Mode maintains consistent temperatures with minimal energy use
Sleep Mode automatically adjusts settings to save energy overnight
📲 Smart HVAC Control from Anywhere
Manage your comfort with ease using the MRCOOL SmartHVAC® app, compatible with iOS and Android. Adjust settings, switch modes, and monitor performance on your phone—or connect your system to Amazon Alexa or Google Assistant for hands-free control.
Each unit also includes a wireless remote and an easy-to-read LED display for on-the-spot changes.
🧠 Smart Features for Effortless Comfort
Follow Me® Technology uses the remote as a temperature sensor
Filter cleaning reminders and error code diagnostics for easy maintenance
Mute Mode disables alerts and dims the display for quiet rooms
Auto Restart resumes previous settings after a power outage
Timer Function for scheduled operation and energy savings
🔄 Expandable for More Coverage
This 27K BTU model supports up to three indoor air handlers. Need to expand? Upgrade to the MRCOOL 36K BTU DIY Multi-Zone System to accommodate up to four zones—perfect for growing households or open floor plans.
✅ System Highlights
Easy DIY® Installation – No professional tools required
Two 12K BTU Indoor Air Handlers
Energy-Efficient 22 SEER | HSPF2-4 Heat Pump
Quick Connect® Line Sets (Pre-Charged with R-454B Refrigerant)
Smartphone App + Alexa & Google Home Compatibility
Gold Fin® Condenser – Rust-Resistant & Coastal Ready
Low Ambient Cooling for year-round performance
7-Year Compressor Warranty | 5-Year Parts Warranty
Optional Lifetime Compressor Warranty with MRCOOL® Care
Lifetime Technical Support included
Save money, stay comfortable, and skip the hassle of hiring an installer.
Order the MRCOOL DIY 27K BTU 12K + 12K Dual-Zone Mini-Split System today and enjoy total climate control—on your terms.