MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 12K + 12K + 9K + 6K Ceiling Cassette Air Handlers
Take control of your home’s comfort with the MRCOOL5th Gen DIYMulti-Zone Mini Split System — the ultimate solution for efficient, customizable, and true DIY-friendly heating and cooling.
This powerful 55K 5-Zone system includes one 18K, two 12K, one 9K and one 6K ceiling cassette air handlers.
Features
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Customize mini-split system: choose the perfect line set length for each zone just above the “Add to Cart” button.
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Ultra-Efficient Cooling & Heating: Enjoy up to 22 SEER2 and 10.6 HSPF2-4 for energy-efficient year-round comfort.
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Low-Profile Ceiling Cassette Design: Flush-mounted unit fits between standard ceiling joists for a clean, built-in look.
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DIY-Friendly QuickConnectInstallation: No vacuuming or professional tools needed — pre-charged line sets make setup fast and simple.
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Smart Voice & App Control: Full control via SmartHVAC app, Alexa, Google Assistant, or included wireless remote.
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Eco-Conscious Refrigerant: Uses R-454B refrigerant with a low environmental impact.
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Industry-Leading Warranty: Includes 5-year parts, 7-year compressor, and lifetime replacement with MRCOOLCare registration.
What our Experts Think
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Efficient Multi-Zone Cooling & Heating
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Supports 5 zones with a total of 55,000 BTU, ideal for whole-home climate control.
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Precise temperature management in individual rooms improves energy savings.
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User-Friendly DIY Installation
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Designed for easy, do-it-yourself setup without professional help.
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Reduces installation costs and downtime.
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Advanced Ceiling Cassette Air Handlers
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Five ceiling-mounted units ensure even airflow distribution.
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Sleek design blends seamlessly with modern interiors.
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Reliable Heat Pump Performance
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Provides both heating and cooling, extending comfort year-round.
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High SEER and HSPF ratings deliver excellent energy efficiency.
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Smart Controls & Quiet Operation
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Compatible with smart thermostats and remote controls.
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Operates quietly, maintaining comfort without noise disruption.
Q&A
Q: What is the MRCOOL DIY 5th Gen Mini Split?
A: A 5-zone, 55,000 BTU ductless air conditioner and heat pump system with ceiling cassette air handlers for efficient heating and cooling.
Q: How many zones does it support?
A: Five zones with individual ceiling cassette air handlers sized 18K, 12K, 12K, 9K, and 6K BTU.
Q: Is installation DIY-friendly?
A: Yes, designed for easy do-it-yourself installation with no specialized HVAC tools required.
Q: What type of climate control does it offer?
A: Provides both cooling and heating via a heat pump for year-round comfort.
Q: What are the energy efficiency benefits?
A: High SEER ratings and zoned control help reduce energy use and lower utility bills.
Q: What spaces is it ideal for?
A: Perfect for multi-room homes, offices, or spaces needing customizable climate control.
Q: Are ceiling cassette air handlers included?
A: Yes, five ceiling cassette units included for discreet, space-saving installation.
Maintenance Tips
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Clean or replace air filters every 1-3 months.
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Keep outdoor condenser unit free of debris and dust.
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Schedule annual professional inspections for refrigerant and system check.
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Clear drainage lines regularly to prevent clogs.
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Ensure proper airflow around indoor and outdoor units.
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Avoid blocking ceiling cassette air handlers.
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Use the system regularly to maintain efficiency.
