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

https://tango-wiki.win/index.php/What_Size_Breaker_Do_3-Zone_Mini_Splits_Usually_Need%3F

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