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

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Comparing MRCOOL and Zone Air DIY mini splits for 2026? Zone Air’s 24 SEER2 tops MRCOOL’s 23, but climate matters more: choose best value above -15°F, or Hyper Heat for dependable warmth down to -22°F.