For 2026, compare DIY mini splits by more than efficiency: 24 SEER2 won't help...

https://evelynsexpertcolumns.brightsora.com/posts/does-cooper-amp-hunter-void-the-warranty-if-i-install-it-myself

For 2026, compare DIY mini splits by more than efficiency: 24 SEER2 won't help if the line set falls short. Check 8-75 ft options, cold-weather ratings, and whether a precharged line makes installation easier.