In 2026, top cold-climate mini splits hit 24 SEER2 and keep heating down to...

https://cleaneverycorner.com/how-do-i-size-btus-per-square-foot-for-a-cold-climate-garage/

In 2026, top cold-climate mini splits hit 24 SEER2 and keep heating down to -22°F. DIYers can save $1,500-$3,000 on installation by handling line sets between 8 and 75 feet