If you’re tackling a 3-zone DIY mini split, you’re looking at solid efficiency...

https://oscar-wiki.win/index.php/How_Do_I_Route_Three_Linesets_Without_Making_a_Mess_of_My_House%3F

If you’re tackling a 3-zone DIY mini split, you’re looking at solid efficiency without calling in expensive pros. Many kits run between $4,100 and $5,600, and with a heating rating as low as -13°F, you’re covered even on chilly days