For 2026, a mini split with a SEER2 rating around 21 makes sense if you want...

https://daisydustmaid.com/will-a-diy-mini-split-heat-my-house-down-to-13f/

For 2026, a mini split with a SEER2 rating around 21 makes sense if you want energy savings without a big upfront cost. Look for models that run on a simple 115V plug-in—easier for DIY installs than 230V hard-wired units