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 real choice is value: MRCOOL suits homes above -15°F, while Zone Air Hyper Heat keeps heating down to -22°F for colder climates.