In 2026, the best DIY mini splits for cold climates run efficiently down to...

https://www.slideserve.com/gwyneyxcez/what-does-cop-2-1-mean-for-heat-pump-heating-costs

In 2026, the best DIY mini splits for cold climates run efficiently down to -22°F with ratings up to 24 SEER2. Models with 8-75 ft line sets fit tight spaces perfectly. Expect $1,500-$3,000 in install savings compared to pros