For a 2026 DIY mini split, compare more than the SEER2 number: check line-set...

https://www.bookmarking-maze.win/for-2026-compare-diy-mini-splits-by-more-than-seer2-check-line-set-length

For a 2026 DIY mini split, compare more than the SEER2 number: check line-set length, low-temperature performance, and what installation really involves. A 24 SEER2 rating looks good on paper, but an 8-75 ft line set may matter more in your room.