2026 DIY mini split face-off: MRCOOL gets 24 SEER2; Zone Air, 23. Want the best...

https://wiki-coast.win/index.php/What_Maintenance_Do_DIY_Mini_Splits_Need_Each_Month%3F

2026 DIY mini split face-off: MRCOOL gets 24 SEER2; Zone Air, 23. Want the best value above -15°F? Pick MRCOOL. Need heat down to -22°F? Zone Air Hyper Heat is the fit. Weigh your winter lows against the price, not just the efficiency rating.