Comparing DIY mini splits for 2026? MRCOOL’s 24 SEER2 tops Zone Air’s 23 SEER2,...

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Comparing DIY mini splits for 2026? MRCOOL’s 24 SEER2 tops Zone Air’s 23 SEER2, but the real choice is value versus cold-weather reach: pick Zone Air above -15°F, or MRCOOL Hyper Heat for heating down to -22°F.