What's Really DIY Ductless & What Isn't

Ductless mini-split heat pumps and air conditioners are growing in popularity across the United States. Given their footprint and versatility, these machines lend themselves naturally to Do-It-Yourself (DIY) installation. Which means many brands promote their products explicitly or implicitly as DIY ductless systems. However, most ductless units require professional installation. Very few are actually amateur-friendly. For that reason, it's easy for an unassuming homeowner to get in over their head.

Most DIY Ductless Systems

Most DIY ductless systems out there aren't really do-it-yourself. They're really just conventional ductless mini-split systems sold as 'easy installation' units or with a 'DIY installation kit' included. Most of the equipment included in the DIY installation kits that we see don't really make the product DIY. All those kits typically include are the extra bits you need to install a ductless mini-split normally. Consequently, they don't ease installation very much.

MrCool DIY Ductless Systems

As far as we know, the only legitimate DIY ductless unit on the market is the MRCOOL DIY ductless mini-split. That's because what makes the MRCOOL DIY actually do-it-yourself is the pre-charged line set.

The main barrier for amateur installation of most HVAC systems is the refrigerant system. Properly connecting the lines and charging the refrigerant is not a simple task. The proper measurements and connections require specialized tools and training. Not to mention that you should get appropriate training to safely handle refrigerant.

Fortunately, the pre-charged line sets on the MRCOOL DIY neatly circumvent those problems. The refrigerant line comes pre-connected to the air handler, eliminating the need for connecting at least one side of the line set. Similarly, the lines plug easily into the condenser without requiring any soldering, vacuuming, or charging. Consequently, it really is the only ductless system of which we are aware that legitimately does not require complex tools to set up.

Want to Know More?

If you have questions or comments about DIY ductless systems or other HVAC products, let us know here, on Facebook, or on Twitter.

2 comments (view/add)
  • todd benoit
    todd benoit
    Posted on 4/1/2019

    Do you sell the DYI setup for multiroom applications or only for individual spaces?

  • Kyle
    Kyle from Ingrams
    Posted on 4/2/2019

    The current DIY is not a multi-zone system. It works best in single-zone applications.

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