Comparing DIY mini splits for 2026? MRCOOL’s 24 SEER2 tops Zone Air’s 23, but...
https://oliviamaids.com/can-a-multi-zone-diy-system-heat-and-cool-a-whole-house/
Comparing DIY mini splits for 2026? MRCOOL’s 24 SEER2 tops Zone Air’s 23, but the choice is value above -15°F or Zone Air Hyper Heat down to -22°F. Choose for your winter lows, not just the efficiency number, and you’ll know which system fits best overall