In 2026, the best DIY cold-climate mini splits deliver up to 24 SEER2...

https://lilyluxemaids.com/cheapest-mini-split-is-650-why-not-just-buy-that/

In 2026, the best DIY cold-climate mini splits deliver up to 24 SEER2 efficiency and reliable heating down to -22°F. Models with 8-75 ft line sets cut complexity, letting you save $1,500-$3,000 on pro installs