Tackling a 3-zone DIY mini split lets you customize comfort room-by-room...

https://www.blaze-bookmarks.win/looking-to-keep-your-whole-home-comfortable-without-breaking-the-bank-a-3-zone

Tackling a 3-zone DIY mini split lets you customize comfort room-by-room without drilling through walls or rebuilding ductwork. These systems often boast heating down to -13°F and SEER2 ratings around 24, so they’re efficient even in bitter cold