For 2026, top DIY cold-climate mini splits run efficient at 24 SEER2 and heat...

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

For 2026, top DIY cold-climate mini splits run efficient at 24 SEER2 and heat down to -22°F, perfect for harsh winters. Most models support line sets from 8 to 75 feet, giving flexible placement