Installing a 3-zone DIY mini split is a smart way to keep your home cozy down...
https://www.e-architect.com/articles/best-3-zone-diy-mini-split
Installing a 3-zone DIY mini split is a smart way to keep your home cozy down to -13°F without breaking the bank on energy bills. With a SEER2 rating of 24, you’ll enjoy efficient cooling in summer and heating in winter