For 2026, MRCOOL’s 24 SEER2 edges Zone Air’s 23 SEER2. The choice is...

https://kylersgreatblogs.lumenforgex.com/posts/can-i-use-a-diy-mini-split-as-primary-heat-room-by-room-instead-of-central-hvac

For 2026, MRCOOL’s 24 SEER2 edges Zone Air’s 23 SEER2. The choice is straightforward: pick MRCOOL for value if your winters stay above -15 F; choose Zone Air’s Hyper Heat if you need heating down to -22 F.