For 2026, compare Zone Air and MRCOOL DIY cold-climate mini splits by winter...

https://research-wiki.win/index.php/Do_I_Really_Need_Manifold_Gauges_and_a_Micron_Gauge_for_a_Mini_Split_Install%3F

For 2026, compare Zone Air and MRCOOL DIY cold-climate mini splits by winter capacity, included line set, and electrical needs. Some models are rated to run at -22°F, but check the specs for your exact unit before buying.