In 2026, the best DIY cold-climate mini splits offer up to 24 SEER2 efficiency...

https://direct-wiki.win/index.php/What_Does_SEER2_24_Actually_Mean_for_My_Electric_Bill%3F

In 2026, the best DIY cold-climate mini splits offer up to 24 SEER2 efficiency and reliable heating down to -22°F, perfect for harsh winters