For 2026, MRCOOL’s 24 SEER2 edges Zone Air’s 23 SEER2, but efficiency isn’t the...

https://mega-wiki.win/index.php/Which_DIY_Mini_Split_Is_Easier_to_Install:_Zone_Air_or_MRCOOL%3F

For 2026, MRCOOL’s 24 SEER2 edges Zone Air’s 23 SEER2, but efficiency isn’t the whole call. Choose MRCOOL for value in climates above -15°F; pick Zone Air Hyper Heat if you need heating down to -22°F. Compare winter lows before you buy.