In 2026, the best DIY mini splits for cold climates deliver up to 24 SEER2...

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

In 2026, the best DIY mini splits for cold climates deliver up to 24 SEER2 efficiency and operate reliably down to -22°F. Models with 8-75 ft line sets let you customize your install, saving $1,500-$3,000 on professional fees