If you’re tackling a 3-zone DIY mini split, you’re looking at solid efficiency...
https://cleaningservicesgrandrapidsmi.com/what-btu-mix-should-i-use-for-3-rooms-like-9k-12k-6k/
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