Comparing 2026 DIY cold-climate mini splits? Zone Air and MRCOOL offer...

https://speedy-wiki.win/index.php/What_Happens_to_Heating_Capacity_as_Temps_Drop_Toward_-22%C2%B0F%3F

Comparing 2026 DIY cold-climate mini splits? Zone Air and MRCOOL offer homeowner-friendly options, but check low-temperature heating ratings, line-set length, and electrical requirements before buying. One model is rated to -22°F.