Comparing 2026 DIY mini splits? MRCOOL offers 24 SEER2 and best value for...

https://wiki-planet.win/index.php/18,000_BTU_Mini_Split_for_700_Sq_Ft:_Does_That_Match_the_Rule_of_Thumb%3F

Comparing 2026 DIY mini splits? MRCOOL offers 24 SEER2 and best value for climates above -15°F. Zone Air’s 23 SEER2 Hyper Heat keeps heating down to -22°F. Pick based on your winter lows, not just the efficiency rating.