For 2026, the best cold-climate mini splits deliver reliable heat down to -22°F...

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

For 2026, the best cold-climate mini splits deliver reliable heat down to -22°F with impressive 24 SEER2 efficiency. Expect $1,500 to $3,000 savings on installation with easy DIY setups using 8 to 75 ft line sets