MRCOOL 12,000 BTU 5th Gen Hyper Heat Mini Split w/ 25 ft line set

Meet the MRCOOL DIY 5th Gen 12,000 BTU Hyper Heat Mini-Split, a ductless heat pump designed to give you reliable comfort year-round. Built for spaces up to 550 square feet, it pairs high efficiency with all-season performance for heating and cooling alike.

This single-zone mini-split arrives ready for straightforward installation and provides precise temperature control without the need for bulky ductwork. Whether you are finishing a bonus room or updating a small office, it offers a flexible, energy-saving solution that integrates easily into today’s connected spaces.

Key Features and Benefits of the MRCOOL DIY 5th Gen 12,000 BTU Hyper Heat Mini-Split

• DIY Quick Connect Installation: The 25-foot, pre-charged line set lets you complete a secure, step-by-step setup without vacuum pumps or specialized tools, saving time and labor costs.
• Hyper Heat Technology: Maintains dependable heating down to -22 degrees F, so you stay comfortable even during severe cold snaps.
• High Efficiency: A 23.5 SEER2 cooling rating, 10.0 HSPF2-4 heating rating leads to reduced energy use, while the R-454B refrigerant has a lower environmental impact than legacy formulas.
• Smart Home Control: Adjust settings from the handheld remote, the SmartHVAC app, or through voice commands with Amazon Alexa and Google Assistant, giving you convenient, hands-free operation.
• Quiet Indoor Performance: Sound levels as low as 18 dB allow you to work, relax, or sleep without disruptive background noise.
• Corrosion-Resistant Exterior: Gold Fin coating shields the condenser against humidity and corroding elements, extending service life in harsh climates.
• Enhanced System Protection: The included DIYPRO cable adds upgraded electrical shielding, helping guard against voltage spikes and weather exposure.
• Built-In Comfort Modes: Auto-restart, programmable timer, and sleep function streamline daily operation and maximize energy savings.

Quick Connect Simplicity

This mini-split's Quick Connect line set arrives pre-charged and sealed at both ends, so you only need to route the piping, tighten the flare nuts with the included torque wrench, and open the valves. This approach minimizes the chance of refrigerant loss, shortens installation time, and lets you install the system on your own terms. The result: a faster, cleaner project that keeps downtime and disruption to a minimum.

Sylvane’s Expert Take

This MRCOOL DIY mini-split stands out for its blend of professional-grade efficiency with truly consumer-friendly installation. This system's hyper heat capability makes it a practical choice for garages, cabins, or additions in cold regions, while the quiet indoor sound profile supports everyday living spaces. If you need reliable, year-round climate control without hiring a professional installer or running new ductwork, this model delivers.