MRCOOL’s 24 SEER2 and Zone Air’s 23 SEER2 DIY mini splits boil down to winter...

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MRCOOL’s 24 SEER2 and Zone Air’s 23 SEER2 DIY mini splits boil down to winter value: choose MRCOOL for heating above -15°F, or Zone Air Hyper Heat for warmth down to -22°F. Buy for your coldest nights, not just the efficiency rating, in your area.