Comparing 2026 DIY mini splits? MRCOOL offers 24 SEER2; Zone Air, 23 SEER2. The...

https://oliviamaids.com/can-a-multi-zone-diy-system-heat-and-cool-a-whole-house/

Comparing 2026 DIY mini splits? MRCOOL offers 24 SEER2; Zone Air, 23 SEER2. The key choice: best value where winters stay above -15°F, or Hyper Heat for heating down to -22°F. Pick based on your local winter lows.