Comparing 2026 DIY mini splits? MRCOOL’s 24 SEER2 beats Zone Air’s 23 SEER2 on...
https://future-wiki.win/index.php/Will_My_City_Require_a_Permit_for_a_DIY_Mini_Split_Install%3F
Comparing 2026 DIY mini splits? MRCOOL’s 24 SEER2 beats Zone Air’s 23 SEER2 on efficiency, but the real choice is value above -15°F or Zone Air Hyper Heat, which keeps heating down to -22°F. Match the unit to your winter lows.