Shopping DIY mini splits in 2026? MRCOOL delivers 24 SEER2, while Zone Air...

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

Shopping DIY mini splits in 2026? MRCOOL delivers 24 SEER2, while Zone Air offers 23 SEER2. Choose MRCOOL for value when temps stay above -15°F; go with Zone Air Hyper Heat if you need heating down to -22°F.