My welder always had a very awful fan. Very noisy and it vibrated a lot, like a gas engine. It was very annoying as I would not hear anything with the machine on, which was a safety issue besides inconvenience.
I took it out today, cut out a round hole in the grille in the back (I can explain) and bolted on a 10" Comair Rotron Caravelle fan. This fan has NO vibration, it is about 10x quieter, and takes up a lot less space inside the welder. A true joy to have.
I used to disconnect the fan, which I could only afford if the welder was open and I maintained a low duty cycle, but now I can finally properly ventilate the welder and work without duty cycle restrictions, with the welder properly closed. My air flow is approximately what it was with the old fan.
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