For a 2026 DIY mini split, compare more than the headline SEER2: a 24 SEER2...

https://edgarscoolchat.talesignal.com/posts/9k-vs.-12k-mini-split-for-a-small-office-350-to-450-sq.-ft.

For a 2026 DIY mini split, compare more than the headline SEER2: a 24 SEER2 unit may save power, but line-set length, cold-weather capacity, and parts support matter day to day. Check whether the 8-75 ft line set fits your layout before you buy.