For 2026, an easy install mini split with a SEER2 rating around 20 is a solid...

https://tessatopmaid.com/do-i-need-a-permit-to-install-a-mini-split-myself/

For 2026, an easy install mini split with a SEER2 rating around 20 is a solid choice. Look for one that runs on a standard 115V plug—no hard-wiring needed