Create year-round comfort in every room with the MRCOOL DIY 5th Gen 36 K BTU 5-Zone Ductless Mini Split System with Ceiling Cassettes (6 K + 6 K + 6 K + 9 K + 18 K).
Engineered for homeowners who want professional performance without hiring an HVAC technician, this powerful system provides precise heating and cooling across five zones — efficiently and quietly.
Configuration breakdown:
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Three 6 K BTU ceiling cassettes – ideal for rooms up to 250 sq ft
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One 9 K BTU cassette – up to 375 sq ft
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One 18 K BTU cassette – up to 750 sq ft
Powered by a 36 K BTU 23 SEER2 inverter condenser, this system balances comfort and savings in every corner of your home.
⚙️ Key Features
✅ DIY Installation — No HVAC Pro Needed
Pre-charged Quick Connect® Line Sets with R-454B refrigerant make setup simple, safe, and affordable. No vacuum pump or specialized tools required.
🌡️ Smart Control From Anywhere
Use the MRCOOL SmartHVAC App or voice assistants like Alexa and Google Home to control temperatures, schedules, and zones remotely.
💨 Ceiling Cassette Comfort
Low-profile indoor units fit neatly between 16-inch joists, providing discreet, even airflow and whisper-quiet performance — ideal for both new builds and retrofits.
♻️ Eco-Friendly & Energy Efficient
The R-454B refrigerant and DC inverter compressor combine for high SEER2 efficiency and reduced energy costs.
🔒 Built for Long-Term Reliability
Backed by a 7-Year Compressor Warranty, 5-Year Parts Warranty, and optional Lifetime Replacement Coverage via MRCOOL Care.
Gold Fin® coating ensures durability against corrosion and harsh weather.
💡 Why Homeowners Choose MRCOOL DIY Ceiling Cassettes
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Heats & cools up to ~1,500 sq ft
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Fully compatible with ceiling and wall air handlers
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Auto, Sleep, and Dehumidify modes for customizable comfort
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Smart app & Wi-Fi integration for remote operation
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Filter reminders and quiet mode for minimal upkeep
📦 What’s Included
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(1) 36 K BTU MRCOOL DIY 5th Gen Condenser
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(3) 6 K BTU Ceiling Cassette Air Handlers
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(1) 9 K BTU Ceiling Cassette
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(1) 18 K BTU Ceiling Cassette
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Pre-charged DIY Quick Connect Line Sets & Couplers
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Remote controls & installation manuals
⚡ Technical Highlights
| Specification |
Value |
| Cooling Capacity |
34 000 BTU |
| Heating Capacity |
36 000 BTU |
| Voltage |
208/230 V Single Phase |
| Refrigerant |
R-454B |
| SEER2 / HSPF2-4 |
23 / 9.9 |
| Zones Supported |
5 |
| Compressor Type |
DC Inverter Rotary |
| Noise Level |
64 dBA (Max) |
| Connectivity |
Wi-Fi, Alexa, Google Home |
| Certifications |
AHRI, ETL, Energy Star Certified |
💬 Customer Benefits
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Save thousands with easy DIY installation
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Quiet performance for multi-room comfort
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Free shipping & 0 % Affirm financing
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Backed by lifetime technical support
🏁 The DIY Comfort Solution
The MRCOOL DIY 5th Gen 36 K BTU 5-Zone Mini Split (6 K + 6 K + 6 K + 9 K + 18 K) gives you full climate control with simple, safe installation.
Enjoy whisper-quiet comfort, smart controls, and long-term efficiency — all without professional help.
Smart comfort. Simple installation. MRCOOL DIY Direct.
