For 2026, compare DIY mini splits: MRCOOL gives 24 SEER2; Zone Air, 23 SEER2....
https://charlie-wiki.win/index.php/MRCOOL_Says_23_SEER2%E2%80%94What_Does_That_Mean_for_My_Power_Bill%3F
For 2026, compare DIY mini splits: MRCOOL gives 24 SEER2; Zone Air, 23 SEER2. The real choice is simple: want best value in temps above -15°F, or need Hyper Heat that keeps heating down to -22°F? Match the unit to your coldest nights and budget.