Thinking about a 3-zone DIY mini split? These systems often handle heating down...
https://romeo-wiki.win/index.php/My_3-Zone_Mini_Split_Cools_One_Room_but_Not_the_Other_Two:_Troubleshooting_Uneven_Zone_Performance
Thinking about a 3-zone DIY mini split? These systems often handle heating down to -13°F and offer impressive efficiency with SEER2 ratings around 24