Quietly cool or heat four rooms with smart control, energy savings, and an easy install—no HVAC tools or techs needed.

The MRCOOL DIY Multi-Zone 36,000 BTU Mini Split gives you powerful heating and cooling for four separate rooms—no HVAC technician required. With four 9K air handlers (each covering up to 400 sq ft), this system is a go-to solution for bedrooms, home offices, or full apartment coverage.

Get full control via remote, smartphone app, Alexa, or Google Home. Designed for serious comfort and long-term energy savings—without the contractor markup.

Note: Pricing doesn't include the Line Sets. Available to purchase separately. 

Coverage Area

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

• Square Feet: Up to 400 | BTU = 9K
• Square Feet: Up to 550 | BTU = 12K
• Square Feet: Up to 800 | BTU = 18K
• Square Feet: Up to 1050 | BTU = 24K
• Square Feet: Up to 1550 | 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
  
• 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?

• 1 x MRCOOL 36k DIY 5th Generation 5 Zone Multi-Zone Mini-Split Condenser 230v
• 4 x MRCOOL 9k DIY 5th Generation Mini-Split Air Handler 230v

Download Resources

• MRCOOL 5th Gen DIY Quick Start Guide
• MRCOOL Mini-Split Remote Control Owner’s Manual
• MRCOOL 5th Gen DIY Single Zone Varied CFM Coil Performance