Comparing MRCOOL’s 24 SEER2 with Zone Air’s 23 SEER2? The choice comes down to...

https://post-wiki.win/index.php/Should_I_Buy_MRCOOL_for_the_Cold_or_Zone_Air_for_the_Value%3F

Comparing MRCOOL’s 24 SEER2 with Zone Air’s 23 SEER2? The choice comes down to value versus cold-weather reach: Zone Air is the best value for heating above -15°F, while MRCOOL Hyper Heat keeps going down to -22°F. Match the system to your winter lows.