Comparing 2026 DIY mini splits? MRCOOL delivers 24 SEER2 versus Zone Air’s 23...

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Comparing 2026 DIY mini splits? MRCOOL delivers 24 SEER2 versus Zone Air’s 23 SEER2. For heating above -15°F, MRCOOL may offer better value; choose Zone Air Hyper Heat if you need warmth down to -22°F.