For 2026, compare DIY mini splits: MRCOOL gives 24 SEER2; Zone Air, 23 SEER2....

https://oscar-wiki.win/index.php/Will_My_City_Require_a_Permit_for_a_DIY_Mini_Split_Install%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.