2026 DIY mini split face-off: MRCOOL has 24 SEER2; Zone Air, 23. Pick top value...

https://mighty-wiki.win/index.php/What_Tools_Do_I_Actually_Need_to_Install_a_DIY_Mini_Split%3F

2026 DIY mini split face-off: MRCOOL has 24 SEER2; Zone Air, 23. Pick top value above -15°F, or Hyper Heat to -22°F. Check winter lows and budget: the right fit depends on how cold it gets in your area, not just the one-point SEER2 gap.