MRCOOL® DIY 5th Gen Single Zone Mini Splits |

MRCOOL® DIY® 5th Generation Series

The Absolute Peak of DIY HVAC Technology

The 5th Generation MRCOOL® DIY® isn't just a mini-split—it's a complete shift in home climate control. Designed to bypass the high costs and scheduling delays of traditional HVAC installations, this series combines professional-grade hardware with the world’s most intuitive DIY connection system. Install today, and experience the most efficient, durable, and smart heating and cooling available.


Hyper Heat Performance

Don't let the "DIY" label fool you; these systems are built for extreme climates. The 5th Gen series provides effective heating even when outdoor temperatures drop as low as -13°F, ensuring your family stays warm during the deepest winter freezes.

Sustainability with R-454B

Future-proof your home with the new industry-standard R-454B refrigerant. It offers a significantly lower Global Warming Potential (GWP) than previous models, making your home more efficient and environmentally responsible.

Pre-Charged Quick Connect®

Eliminate the need for specialized tools like vacuum pumps or gauges. Our factory-sealed line sets allow you to simply "plug and play," maintaining a perfect seal and optimal refrigerant charge every time.

Advanced Smart Integration

The SmartHVAC App gives you total mastery. Set complex schedules, monitor energy consumption in real-time, and control your comfort via Amazon Alexa® or Google Assistant® voice commands.

DIYPro® Armored Cable

Standard on the 5th Gen, this specialized cable provides professional protection without the need for electrical conduit. It’s built to withstand UV exposure, extreme weather, and animal interference.

Gold Fin® Anti-Corrosion

Standard on all DIY condensers, our Gold Fin® technology prevents the oxidation that plagues coastal and high-humidity areas, significantly extending the life of your system's outdoor components.

Advanced Comfort Features

Follow Me® Function

The system tracks the temperature at the remote's location, not just the unit, for precision cooling.

Louver Memory

The horizontal louver automatically resets to your previous position every time the unit powers on.

Leakage Detection

Smart sensors protect your compressor by shutting down the system immediately if a coolant leak is detected.

Auto-Restart

In the event of a power outage, the system automatically resumes your settings the moment power is restored.

Ready to build your multi-zone dream system? Consult a MRCOOL® Expert for Free Sizing Help

*To secure your Limited Lifetime Replacement Warranty, please ensure you enroll in the MRCOOL® Care Program within 60 days of installation.
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