If you’re thinking about a DIY multi-zone mini split in 2026, Zone Air and...

https://daisydustmaid.com/mrcool-fixed-line-set-sizes-16-25-35-50-ft-which-one-do-i-pick/

If you’re thinking about a DIY multi-zone mini split in 2026, Zone Air and MRCOOL both have solid options that make sense for older homes