Shopping DIY mini splits for 2026? MRCOOL’s 24 SEER2 and Zone Air’s 23 SEER2...

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

Shopping DIY mini splits for 2026? MRCOOL’s 24 SEER2 and Zone Air’s 23 SEER2 make efficiency close. The real choice: best value above -15°F or Hyper Heat designed to operate down to -22°F. Match the system to your winter lows.