Turning Archive 2005

Question - Squirrel Cage Fan

Jerry Whitaker
>I recently acquired a 110v squirrel cage fan which moves a heck of a lot of air. It came from a HVAC unit from a mobile home. I want to install this fan in the wall close to my lathe so that hopefully it will pull "all" of the sanding dust out of my shop. I was told that I needed to block off at least 1/3rd of the outlet or the fan motor would burn up. Something about "static pressure" required and that the fan is built to be under a constant load. Can anyone verify this for me and explain this "static pressure" thing? I want to move as much air as possible but at the same time, I do not want to burn it up either. My shop is only 14 x 14 ft and I am thinking I could have a complet air change every 2 or 3 minutes with this thing. Any comments or ideas?

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