Take full control of comfort in every room with the MRCOOL DIY 5th Gen 36 K BTU 5-Zone Ductless Mini Split System with Ceiling Cassettes (6 K + 9 K + 9 K + 9 K + 9 K).
Designed for homeowners who want professional-grade HVAC without hiring a contractor, this system delivers quiet, efficient heating and cooling across five zones — all with simple DIY installation.
The system includes:
⚙️ Key Features
✅ DIY Installation — No Vacuum Pump Required
Patented Quick Connect® Line Sets come pre-charged with eco-friendly R-454B refrigerant, so you can install confidently without special tools or HVAC experience.
🌡️ Smart Comfort Control
Use the MRCOOL SmartHVAC App or voice assistants like Amazon Alexa and Google Home to manage each zone, set schedules, and monitor performance.
💨 Low-Profile Ceiling Cassette Design
Recessed, discreet air handlers fit between standard 16-inch joists, providing powerful airflow and whisper-quiet operation — ideal for both retrofits and new builds.
♻️ Energy Efficient & Eco-Safe
High-efficiency DC inverter technology and the new R-454B refrigerant reduce environmental impact while delivering lower operating costs.
🔒 Reliable Performance & Warranty
💡 Why Choose MRCOOL DIY 5th Gen Ceiling Cassettes
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Heat & cool up to 1,500 sq ft across five zones
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Compatible with both ceiling and wall air handlers
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Auto, Sleep, Dehumidify modes for precision comfort
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Wi-Fi and app integration for real-time control
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Quiet mode and filter reminders for easy maintenance
📦 What’s Included
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(1) 36 K BTU MRCOOL DIY 5th Gen Condenser
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(1) 6 K BTU Ceiling Cassette
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(4) 9 K BTU Ceiling Cassettes
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Pre-charged DIY Quick Connect Line Sets & Couplers
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Remote Controls & Installation Manuals
⚡ Technical Specifications
| Specification |
Value |
| Cooling Capacity |
34 000 BTU |
| Heating Capacity |
36 000 BTU |
| Voltage |
208/230 V Single Phase |
| Refrigerant |
R-454B (Eco-Safe) |
| SEER2 / HSPF2-4 |
23 / 9.9 |
| Zones Supported |
5 Indoor Units |
| Compressor Type |
DC Inverter Rotary |
| Noise Level |
64 dBA (Max) |
| Connectivity |
Wi-Fi, SmartHVAC App, Alexa, Google Home |
| Certifications |
ETL, AHRI, Energy Star Certified |
🌬️ Performance & Comfort Features
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Multi-room zoning for balanced climate control
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Auto mode adjusts cooling/heating as needed
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Dehumidify mode for humid seasons
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Sleep mode for energy savings overnight
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Quiet operation and filter alerts for low maintenance
💬 Customer Benefits
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Install it yourself and save thousands on labor
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0 % financing available through Affirm
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Free shipping on all orders
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Lifetime technical support from MRCOOL
🏁 The DIY Comfort Solution
The MRCOOL DIY 5th Gen 36 K BTU 5-Zone Mini Split with Ceiling Cassettes (6 K + 9 K + 9 K + 9 K + 9 K) delivers unmatched flexibility, efficiency, and style.
Enjoy year-round comfort, smart control, and easy installation — without the contractor markup.
Your comfort, your way — powered by MRCOOL DIY Direct.