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

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Comparing MRCOOL and Zone Air DIY mini splits for 2026? MRCOOL’s 24 SEER2 edges out Zone Air’s 23 SEER2. Pick the best value for heating above -15°F, or choose Hyper Heat if you need warmth down to -22°F.