Install it yourself and heat or cool five rooms with smart, energy-saving controls and zero special tools required.

Control the climate in up to five rooms with the MRCOOL DIY Multi-Zone 48,000 BTU Ductless Mini Split. This 5-zone system comes with three 9K and two 12K indoor units and can heat or cool up to 2,350 sq ft. It's pre-charged, Wi-Fi compatible, and designed for easy installation without an HVAC tech.

This is the only DIY-ready heat pump system that handles year-round comfort—cooling in summer, heating in winter, and dehumidifying in humid seasons. It’s perfect for homeowners, Airbnb hosts, and property managers who want high-efficiency control without the high cost of pro installs.

Coverage Area

Please refer to this coverage chart to determine the required BTUs for the area you wish to cool or heat.

• Square Feet: 180-375 | BTU = 9K
• Square Feet: 376-500 | BTU = 12K
• Square Feet: 501-750 | BTU = 18K
• Square Feet: 751-1,000 | BTU = 24K
• Square Feet: 1,001-1,500 | BTU = 36K

Note about condenser sizes versus total air handler capacity: The total capacity of the combined air handlers may exceed the capacity of the condenser in certain configurations. While this provides more flexibility in your setup, you will need to either shut off one of your air handlers (zones) or reduce the output of all zones.

Features

• Easy DIY Installation
• "Pre-charged DIY
• Quick Connect Line Set"
• Simple to Use
• Multi-room Comfort
• Energy Efficient DC Inverter
• 100% Sealed System
• Gold Fin Condenser
• Eco Safe R-454B Refrigerant
• Smartphone App Controls
• Lifetime Technical Support
• Follow Me Feature
• Low Ambient Cooling

What's Included?

• 5 x MRCOOL 5th Gen Multi-Zone Wall-Mounted Air Handler Builder
• 7 x 16 ft MRCOOL 5th Gen Pre-Charged Mini Split Line Set – R-454B

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