Enjoy perfectly balanced 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 + 6 K + 9 K).
This system offers precise heating and cooling for evenly sized spaces — four 6 K air handlers ideal for bedrooms or offices (~250 sq ft each) and one 9 K unit (~375 sq ft) for a slightly larger area.
Powered by a 36 K BTU 23 SEER2 condenser, it combines energy efficiency, quiet operation, and a true DIY installation you can complete without specialized tools or HVAC experience.
⚙️ Key Features
✅ No HVAC Pro Needed
Pre-charged Quick Connect® Line Sets with eco-friendly R-454B refrigerant let you connect and seal your system without vacuum pumps or gauges.
🌡️ Smart Zoning & App Control
Manage zones individually with the MRCOOL SmartHVAC App, or use Amazon Alexa and Google Home for voice control.
💨 Low-Profile Ceiling Cassettes
Recessed design fits between standard 16-inch joists for a discreet look and even air distribution in every room.
♻️ High Efficiency & Eco Safety
Advanced DC inverter compressor and R-454B refrigerant provide outstanding efficiency and lower environmental impact.
🔒 Warranty & Protection
💡 Why Homeowners Love It
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Perfect for homes up to ~1,500 sq ft
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Quiet and discreet ceiling design
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Auto, Sleep & Dry modes for seasonal comfort
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App & Wi-Fi integration for remote control
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Filter alerts and self-diagnostics for easy maintenance
📦 What’s Included
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(1) 36 K BTU MRCOOL DIY 5th Gen Condenser
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(4) 6 K BTU Ceiling Cassettes
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(1) 9 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
| 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 |
| Connectivity |
Wi-Fi, Alexa, Google Home |
| Certifications |
AHRI, ETL, Energy Star Certified |
💬 Customer Benefits
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DIY install saves thousands on labor
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Quiet comfort in five rooms
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Free shipping & 0 % Affirm financing
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Lifetime tech support from MRCOOL
🏁 The DIY Comfort Solution
The MRCOOL DIY 5th Gen 36 K BTU 5-Zone Mini Split (6 K + 6 K + 6 K + 6 K + 9 K) offers balanced power and energy-smart comfort for homes with multiple small rooms plus one larger zone.
Enjoy professional-grade performance you can install yourself — backed by MRCOOL’s industry-leading warranty and support.
Balanced comfort, DIY simplicity — only from MRCOOL DIY Direct.