I知 looking for ideas. I want to have dedicated extraction for fumes to the outside (similar to a bathroom fan with about 350-500 CFM. I want variable speed so I elected to go with a three phase 1hp motor and a VFD. The original motor was a 1/3 hp 3460 RPM. The motor I知 using is a 1725 RPM. What are the thoughts are running this double speed? If need be.
I致e also been given good advice using b-vent for recovery.
I知 intending to use this in my soldering and welding area where a little bit of grinding smoke happens to be.