Choosing a DIY mini split for 2026 comes down to cold-weather needs: MRCOOL...

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

Choosing a DIY mini split for 2026 comes down to cold-weather needs: MRCOOL delivers value above -15°F with 24 SEER2, while Zone Air’s 23 SEER2 Hyper Heat can heat down to -22°F. Decide whether extra cold-weather reach is worth the trade-off.