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

https://scarlettsnewnews.nexorafield.com/posts/is-coiling-extra-copper-line-set-behind-the-condenser-a-problem

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