10 Worst Air Conditioners to Avoid in 2025 (and 5 Most Reliable Alternatives)

5. Friedrich

Price: $1,000 — $2,000
Rating: 3/5

Friedrich is one of those "almost great" brands—but they trip over installation. Their system is so picky that unless you've got an HVAC pro who's done five of these before, you're in for leaks, rattling, or worse. Cool air is great, but not if it sounds like a lawn mower.