The Rise of DIY Mini-Split Installation
Ductless mini-splits have become increasingly popular for DIY installation, partly because brands like Mr. Cool and Pioneer now sell "DIY-friendly" systems with pre-charged line sets that don't require an EPA 608 certification to handle refrigerant. But before you grab a drill, it's important to understand exactly what's involved — and what could go wrong.
What a Mini-Split Installation Actually Involves
A standard ductless installation includes:
- Mounting the indoor air handler on a wall
- Drilling a 3-inch hole through an exterior wall for the line set