MrCool DIY Ductless Mini-Split Heat Pump A/C (Gen 4 E-Star)

MrCool E Star DIY 4th Gen 12,000 – 36,000 BTU Ductless Mini-Split Heat Pump Complete System.



MrCool Do It Yourself Series

Ductless Mini-Split Heat Pump A/C

E Star DIY 4th Generation


  • Quick Installation
  • Easy Connection
  • Fits in Every Home
  • Smartphone App
  • 7 Year Compressor & 5 Year Parts Warranty
  • 25′ Lineset Included

Energy Star Certified Efficiency!

About the DIY Mini-Split System

Introducing the latest in home comfort technology, with the 4th Generation MrCool DIY Ductless Heat Pump System! This powerful single-zone system has the capability of heating and cooling an areas between 500 – 1,500 sq. ft.

It comes complete with a 12K condenser, air handler, and a 25 ft. line set pre-charged with R-410A refrigerant. The line set also has quick connectors which require no special tools, equipment, or training to install. The MrCool DIY system also includes many features that make it stand out among its competitors. The first of which is its ability to achieve an outstanding 22 SEER efficiency rating allowing it to be Energy Star certified.

This system has many operating modes to select from to suit the needs of the user, including HEAT, COOL, DRY (dehumidification), and SLEEP. It also has the Follow Me function that adjusts the temperature of the room based on the temperature being read by the hand-held remote control. The DIY features the convenience of being able to operate its modes and functions with your smartphone by using the Smart HVAC app.

The MrCool mini split is the only system on the market to offer a limited lifetime compressor warranty.

DIY Mini-Split Options At a Glance


Model No.  DIY-12-HP-WM-115C25 DIY-18-HP-WM-230C25  DIY-24-HP-WM-230C25 DIY-36-HP-WM-230C25
BTU Rating (Btu/h) 12000 18000 24000 36000
Heating/Cooling Area (sqft) 500 750 1000 1500

System Highlights & Benefits

  • Our Easy DIY installation: pre-charged quick connect line doesn’t require special tools, equipment, or training
  • SmartHVAC app: WIFI control – control your DIY anywhere with your Apple or Android smart device and an Internet connection
  • Variable-speed DC inverter compressor technology cuts operating costs
  • Low ambient cooling: cooling down to 5ºF exterior temperatures. The ideal system for computer server rooms, greenhouses, and any other applications that require cooling all year
  • 7-Year compressor warranty and 5-year parts warranty
  • Auto-restart: – power outage? No worries, the MRCOOL DIY E star Series auto-restart has the unit running again immediately
  • Gold fin condenser: corrosion-resistant. Coastal living – don’t worry, the condenser is built to resist long term corrosion
  • Louver position memory remembers so you don’t need to – horizontal louver automatically moves to the same position you set the last time the unit was turned on
  • Automatic leakage detection technology to alert you should a problem arise

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