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

https://wiki-coast.win/index.php/Are_MRCOOL_Refrigerant_Leaks_a_Common_Complaint_on_Trustpilot%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.