In this 2026 DIY mini-split matchup, MRCOOL’s 24 SEER2 and Zone Air’s 23 SEER2...

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

In this 2026 DIY mini-split matchup, MRCOOL’s 24 SEER2 and Zone Air’s 23 SEER2 are close on efficiency. The real choice: better value for climates above -15°F, or Hyper Heat that keeps working down to -22°F.