For 2026, the top DIY cold-climate mini splits offer efficient heating down to...

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

For 2026, the top DIY cold-climate mini splits offer efficient heating down to -22°F with impressive 24 SEER2 ratings. Expect 8-75 ft line set compatibility, making installs flexible. You can save $1,500-$3,000 by handling the setup yourself