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

https://aged-wiki.win/index.php/How_Much_Does_It_Cost_to_Add_a_230V_Circuit_for_a_Mini_Split%3F

For 2026, cold-climate mini splits deliver reliable heat down to -22°F with efficiency ratings up to 24 SEER2. DIYers save $1,500-$3,000 on installation by handling 8-75 ft line sets themselves