Older thread but bearings are biggest difference. They’ll outlast all your none industrial/commercial dehumidifiers and are designed to run 24/7. Your cheap ones are not designed to run every second of everyday, like Quests and Andens are. Plus they’re are WAY more efficient, with WAY better...
I have 2 end to end. One homemade one is 8’x12’ then another is 10’x20’ I might have to throw my dual 105 in too and use my old dehu inside again. It’s all enclosed now.