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

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Comparing DIY mini splits for 2026? MRCOOL’s 24 SEER2 tops Zone Air’s 23, but the choice is value above -15°F or Zone Air Hyper Heat down to -22°F. Choose for your winter lows, not just the efficiency number, and you’ll know which system fits best overall