Comparing MRCOOL and Zone Air DIY mini splits for 2026? MRCOOL delivers 24...

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Comparing MRCOOL and Zone Air DIY mini splits for 2026? MRCOOL delivers 24 SEER2, while Zone Air reaches 23 SEER2. The choice comes down to value: choose the better deal for heating above -15°F, or opt for Hyper Heat rated down to -22°F.