For a 2026 DIY cold-climate mini split, compare Zone Air and MRCOOL on...

https://oscar-wiki.win/index.php/I_Want_a_DIY_Mini_Split,_but_My_Town_Requires_Permits:_What_Do_I_Do_First%3F

For a 2026 DIY cold-climate mini split, compare Zone Air and MRCOOL on low-temperature heating, line-set length, and wiring needs—not just price. Some MRCOOL models operate down to -22°F; check each unit’s installation requirements before choosing.