Choosing between MRCOOL and Zone Air? MRCOOL’s 24 SEER2 edges Zone Air’s 23,...

https://mill-wiki.win/index.php/Zone_Air_Custom_Line_Sets_5_to_75_ft:_Is_One_Continuous_Run_Better%3F

Choosing between MRCOOL and Zone Air? MRCOOL’s 24 SEER2 edges Zone Air’s 23, but the real call is your climate: best value above -15°F, or Hyper Heat that works down to -22°F. Match the upgrade to your winter lows.