DIY 3rd Generation Ductless Mini Split Air Conditioner & Heat Pump

The MRCOOL DIY® 3rd Generation Ductless Heat Pump is designed for simple, amateur installation. Using pre-charged Quick Connect® Linesets, anyone with a few common tools on hand can install this innovative ductless system that delivers reliable, ENERGY STAR rated heating and cooling year-round.

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the MRCOOL DIY® Mini Split?

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Features and Benefits

Easy DIY® Installation

Pre-charged line sets, available in 16′ and 25′ options, allow you to install this innovative ductless system without special tools, equipment, or training.

Energy Star

Going above and beyond for efficiency while maintaining optimum performance and reliability, the 12K, 18K and 24K models are Energy Star Certified.

Smartphone App

Control your MRCOOL DIY® anywhere with your Apple or Android smart device and an internet connection.

Follow Me® Function

Keep the remote close by, and MRCOOL DIY® will track the air temperature around you to ensure you receive maximum comfort.

Leakage Detection

When the MRCOOL DIY® detects low coolant an alarm will sound to alert you to the problem. This will prevent damage to the compressor while you maintain high air comfort.

Low Ambient Cooling

This feature makes the MRCOOL DIY®the ideal system for server rooms, greenhouses, and any other application that requires cooling all year.

Auto Restart

Power outage? Don’t worry, the MRCOOL DIY® auto restart will have the unit running again in no time at all.

Sleep Mode

24- hour comfort. We made Sleep Mode easy to program to save money, and let you sleep a little easier.

Louver Position Memory

Horizontal louver will automatically move to the same position as you set last time the unit was turned on.

Gold Fin® Condenser

Corrosion resistant. Live on the coast? Don’t worry, our condenser is built to resist long term corrosion.

Google Assistant & Amazon Alexa

The new MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.