For 2026, top DIY cold-climate mini splits offer efficiency ratings up to 24...

https://www.hometalk.com/member/259583614/gussie1580272

For 2026, top DIY cold-climate mini splits offer efficiency ratings up to 24 SEER2 and reliable heating down to -22°F. With flexible 8-75 ft line sets, you can install without major rerouting