Comparing MRCOOL and Zone Air DIY mini splits for 2026? MRCOOL’s 24 SEER2 edges...

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 edges Zone Air’s 23, but the real choice is value above -15°F or Hyper Heat that keeps working down to -22°F. Match the unit to your winter lows—not just the efficiency rating.