Comparing MRCOOL and Zone Air DIY mini splits for 2026? MRCOOL’s 24 SEER2 tops...
https://oliviamaids.com/can-a-multi-zone-diy-system-heat-and-cool-a-whole-house/
Comparing MRCOOL and Zone Air DIY mini splits for 2026? MRCOOL’s 24 SEER2 tops Zone Air’s 23, but the real choice is best value for climates above -15°F or Hyper Heat rated down to -22°F. Choose for your winter lows.