MRCOOL vs Zone Air: DIY mini splits bring 24 SEER2 vs 23 SEER2 efficiency. Pick...

https://daisydustmaid.com/what-size-mini-split-for-a-garage-12k-18k-or-24k/

MRCOOL vs Zone Air: DIY mini splits bring 24 SEER2 vs 23 SEER2 efficiency. Pick MRCOOL for value in areas above -15°F; choose Zone Air Hyper Heat if you need heating down to -22°F. Your winter lows—not a tiny efficiency gap—should drive the decision.