For 2026, top DIY cold-climate mini splits offer efficiency around 24 SEER2 and...

https://brooksfznx367.theburnward.com/is-a-diy-mini-split-legal-to-install-without-an-hvac-license

For 2026, top DIY cold-climate mini splits offer efficiency around 24 SEER2 and reliable heating down to -22°F. Most kits support 8-75 ft line sets, allowing flexible placement