Shopping DIY mini splits in 2026? MRCOOL’s 24 SEER2 rating edges Zone Air’s 23,...

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Shopping DIY mini splits in 2026? MRCOOL’s 24 SEER2 rating edges Zone Air’s 23, but efficiency isn’t the whole story. Choose MRCOOL for better value if your winters stay above -15°F; pick Zone Air Hyper Heat if you need dependable heating down to -22°F