In 2026, DIYers tackling cold-climate mini splits can expect units with up to...

https://mag-wiki.win/index.php/R-32_vs_R-454B:_Which_Refrigerant_is_Better_for_2026_Mini_Split_Installs%3F

In 2026, DIYers tackling cold-climate mini splits can expect units with up to 24 SEER2 efficiency and reliable heating down to -22°F. Most models support line sets from 8 to 75 feet, making flexible installs easier than ever