In 2026, cold-climate mini splits hit new highs with up to 24 SEER2 efficiency,...
https://online-wiki.win/index.php/What_Is_the_Risk_of_Micro_Leaks_Over_Freeze_Thaw_Cycles_in_Mini_Split_Systems%3F
In 2026, cold-climate mini splits hit new highs with up to 24 SEER2 efficiency, running reliably down to -22°F