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

https://beaussmartwords.rivetgarden.com/posts/do-i-need-a-base-pan-heater-for-cold-climate-mini-splits

For 2026, the best DIY cold-climate mini splits deliver up to 24 SEER2 efficiency and heat down to -22°F, keeping homes cozy all winter. Most units support 8-75 ft line sets, making installation flexible