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

https://wiki-book.win/index.php/How_Much_Does_Pro_Installation_Add_to_a_12k_Mini_Split%3F

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