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:

• Three 6 K BTU ceiling cassettes – ideal for rooms up to 250 sq ft

• One 9 K BTU cassette – up to 375 sq ft

• 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.

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⚙️ 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.

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💡 Why Homeowners Choose MRCOOL DIY Ceiling Cassettes

• Heats & cools up to ~1,500 sq ft

• Fully compatible with ceiling and wall air handlers

• Auto, Sleep, and Dehumidify modes for customizable comfort

• Smart app & Wi-Fi integration for remote operation

• Filter reminders and quiet mode for minimal upkeep

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📦 What’s Included

• (1) 36 K BTU MRCOOL DIY 5th Gen Condenser

• (3) 6 K BTU Ceiling Cassette Air Handlers

• (1) 9 K BTU Ceiling Cassette

• (1) 18 K BTU Ceiling Cassette

• Pre-charged DIY Quick Connect Line Sets & Couplers

• Remote controls & installation manuals

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⚡ Technical Highlights

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💬 Customer Benefits

• Save thousands with easy DIY installation

• Quiet performance for multi-room comfort

• Free shipping & 0 % Affirm financing

• Backed by lifetime technical support

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🏁 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.