For 2026, this DIY mini split comparison pits MRCOOL at 24 SEER2 against Zone...

https://oliviamaids.com/can-a-multi-zone-diy-system-heat-and-cool-a-whole-house/

For 2026, this DIY mini split comparison pits MRCOOL at 24 SEER2 against Zone Air at 23 SEER2. The real choice: best value for climates above -15°F, or Zone Air Hyper Heat for reliable heating down to -22°F.