A 3-zone DIY mini split lets you customize heating and cooling in different...

https://nova-wiki.win/index.php/How_Loud_Is_a_3-Zone_Mini_Split_Outdoor_Unit_in_Real_Life%3F

A 3-zone DIY mini split lets you customize heating and cooling in different rooms without breaking the bank. With a solid -13°F heating rating, it keeps things cozy even when it’s freezing outside