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

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

In 2026, top cold-climate mini splits deliver efficient heating down to -22°F with ratings up to 24 SEER2. DIY installations save $1,500 to $3,000 compared to pros. Most units support 8 to 75-foot line sets, making them flexible for various homes