For 2026, cold-climate mini splits deliver efficient heating down to -22°F with...

https://www.grandmashousediy.com/best-diy-cold-climate-mini-split-hyper-heat-models-compared-mrcool-vs-cooper-hunter-vs-zone-air-2026/

For 2026, cold-climate mini splits deliver efficient heating down to -22°F with models hitting up to 24 SEER2. DIY installers can save $1,500-$3,000 on professional setup by choosing units compatible with 8-75 ft line sets