Balance comfort across five rooms with the MRCOOL DIY 5th Gen 36 K BTU 5-Zone Ductless Mini Split System with Ceiling Cassettes (6 K + 6 K + 9 K + 9 K + 12 K).
This high-efficiency HVAC system offers customized zoning, whisper-quiet operation, and true DIY installation with no special tools or professional help required.
It includes:
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Two 6 K BTU cassettes (~250 sq ft each)
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Two 9 K BTU cassettes (~375 sq ft each)
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One 12 K BTU cassette (~500 sq ft)
All powered by a 36 K BTU 23 SEER2 condenser delivering precise temperature control for year-round comfort.
⚙️ Key Features
✅ Fast & Simple DIY Installation
Connect pre-charged Quick Connect® line sets filled with R-454B refrigerant—no vacuum pump or licensed technician required.
🌡️ Smart Controls & Voice Integration
Adjust temperatures, monitor usage, and set schedules through the MRCOOL SmartHVAC App or with Alexa and Google Home voice commands.
💨 Discreet Ceiling Cassettes
Low-profile indoor units install between 16-inch joists, offering quiet airflow and a modern, unobtrusive look.
♻️ Energy Efficient & Eco-Friendly
Advanced DC inverter technology and R-454B refrigerant deliver up to 23 SEER2 efficiency for lower utility costs and a smaller carbon footprint.
🔒 Built to Last
Protected by a 7-Year Compressor Warranty, 5-Year Parts Warranty, and optional Lifetime Replacement Coverage through MRCOOL Care.
💡 Why Choose MRCOOL DIY
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Covers ~1,500 sq ft with 5 zones
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Mix ceiling and wall air handlers as needed
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Auto, Sleep & Dry modes for personalized comfort
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App & Wi-Fi integration for anywhere control
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Quiet operation with filter reminders and self-diagnostics
📦 Included
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(1) 36 K BTU MRCOOL DIY 5th Gen Condenser
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(2) 6 K BTU Ceiling Cassettes
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(2) 9 K BTU Ceiling Cassettes
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(1) 12 K BTU Ceiling Cassette
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Pre-charged DIY Quick Connect Line Sets & Couplers
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Remotes & installation manuals
⚡ Technical Highlights
| Spec |
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 |
5 |
| Compressor |
DC Inverter Rotary |
| Noise Level |
64 dBA |
| Connectivity |
Wi-Fi, SmartHVAC App, Alexa, Google Home |
| Certifications |
AHRI, ETL, Energy Star |
💬 Customer Benefits
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DIY installation = save thousands on labor
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0 % financing through Affirm
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Free shipping nationwide
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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 (6 K + 6 K + 9 K + 9 K + 12 K) is perfect for mixed-size spaces that need precise climate control in every room. Enjoy smart comfort, energy savings, and simple installation—all without hiring a pro.
Your home, your comfort — powered by MRCOOL DIY Direct.
