Comparing 2026 DIY mini splits? MRCOOL offers 24 SEER2, while Zone Air delivers...

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

Comparing 2026 DIY mini splits? MRCOOL offers 24 SEER2, while Zone Air delivers 23 SEER2 and better value when winter lows stay above -15°F. Need heat in colder weather? Zone Air Hyper Heat runs down to -22°F.