For 2026, a mini split with a SEER2 rating over 20 is a solid bet for efficient...

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

For 2026, a mini split with a SEER2 rating over 20 is a solid bet for efficient cooling and heating. If you’re after easy DIY installation, look for models that run on a standard 115V plug