Choosing a DIY mini split in 2026? MRCOOL offers 24 SEER2 efficiency and strong...

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

Choosing a DIY mini split in 2026? MRCOOL offers 24 SEER2 efficiency and strong value above -15°F. Zone Air’s 23 SEER2 Hyper Heat keeps heating down to -22°F—worth considering if deep-cold performance matters more than price.