Shopping DIY mini splits in 2026? MRCOOL vs. Zone Air comes down to 24 SEER2...

https://spencersexcellentcolumn.scriblorax.com/posts/zone-air-is-recommended-if-you-don-t-go-below-15degf-why-that-cutoff

Shopping DIY mini splits in 2026? MRCOOL vs. Zone Air comes down to 24 SEER2 vs. 23 SEER2—and the bigger choice: best value above -15°F or Hyper Heat down to -22°F. Choose for your winter lows, not efficiency alone.