Thinking about a 3-zone DIY mini-split? With units rated to heat efficiently...

https://wiki-neon.win/index.php/Are_Premium_Brands_Like_Mitsubishi_or_Fujitsu_Worth_It_If_I_Want_DIY%3F

Thinking about a 3-zone DIY mini-split? With units rated to heat efficiently even at -13°F and SEER2 ratings around 24, you get reliable comfort without a massive electric bill