For 2026, MRCOOL’s 24 SEER2 beats Zone Air’s 23 SEER2 on efficiency. The real...

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

For 2026, MRCOOL’s 24 SEER2 beats Zone Air’s 23 SEER2 on efficiency. The real choice: MRCOOL for best value above -15°F, or Zone Air Hyper Heat for heating down to -22°F.