MRCOOL® DIY 5th Generation Mini-split Air Handler & Condenser

Take control of your comfort with the MRCOOL® DIY® 5th Generation Mini-Split System, available in 9,000, 12,000, 18,000, 24,000, and 36,000 BTU capacities. Designed for homeowners who want professional-grade heating and cooling without the cost of professional installation, the DIY 5th Gen system combines industry-leading efficiency, smart technology, and simple installation into one complete package.

Featuring MRCOOL's patented Pre-Charged Quick Connect® line set, the system eliminates the need for specialized HVAC tools, vacuum pumps, or refrigerant handling. Whether you're conditioning a garage, workshop, home office, addition, basement, or entire living space, the DIY 5th Gen delivers year-round comfort with reliable heating and cooling performance.

Key Features

• True DIY installation with Pre-Charged Quick Connect® line set
• Energy-efficient inverter technology for lower utility costs
• Heating and cooling operation for year-round comfort
• Smart control through the MRCOOL SmartHVAC app
• Compatible with Amazon Alexa and Google Assistant
• Washable air filters for easy maintenance
• Quiet operation for minimal disruption
• Eco-friendly R-454B refrigerant
• Auto Restart and Follow Me® technology for enhanced comfort
• Corrosion-resistant Gold Fin® condenser protection

Available Capacities

9,000 BTU DIY 5th Gen Mini-Split

Ideal for small spaces such as single-car garages, bedrooms, home offices, and workshops up to approximately 350-400 square feet. Delivers efficient comfort while maintaining ultra-quiet operation.

12,000 BTU DIY 5th Gen Mini-Split

Perfect for larger bedrooms, home gyms, enclosed patios, and garages up to approximately 550 square feet. Offers an excellent balance of performance and energy efficiency.

18,000 BTU DIY 5th Gen Mini-Split

Designed for medium-sized garages, bonus rooms, basements, and open-concept living spaces up to approximately 800 square feet. Provides powerful heating and cooling with advanced inverter technology.

24,000 BTU DIY 5th Gen Mini-Split

A great solution for larger garages, workshops, additions, and multi-room areas up to approximately 1,200 square feet. Delivers dependable comfort even during extreme outdoor temperatures.

36,000 BTU DIY 5th Gen Mini-Split

Built for large garages, commercial spaces, open floor plans, and expansive workshops up to approximately 1,500 square feet. Offers maximum comfort capacity while maintaining exceptional efficiency.

What's Included

• Indoor Air Handler
• Outdoor Condenser
• Pre-Charged Quick Connect® Line Set
• Remote Control
• Mounting Hardware
• Installation Accessories
• User Manual

Why Choose the MRCOOL DIY 5th Generation System?

The MRCOOL DIY 5th Generation Mini-Split is one of the most advanced homeowner-installed HVAC systems available today. Combining energy-efficient performance, smart-home integration, and simplified installation, it provides a cost-effective alternative to traditional HVAC systems while delivering reliable comfort in every season.

Whether you're upgrading a garage, finishing a basement, or adding climate control to a new space, the MRCOOL DIY 5th Generation system offers professional-level comfort with homeowner-friendly installation.