1. #1
    Is there a cool way of quieting down the metal can type shop vac,s? Without causing them to overheat.

  2. #2
    I had excellent results by putting the whole thing in an 18mm plywood box, lined with foam on inside. Hinged top with clips and a foam draught excluder seal. A 4" hole at the back is lined up with the exhaust port. The only noise is the airflow.
    Box has 4 castors for wheeling it around.

    The airflow noise was actually massively reduced in volume when I added the cyclone dust catcher (from screwfix).

    My shop vac was stupid loud before, its barely noticeable now.

    As to overheating- it could easily be an issue. I've only run it for an hour at a time, usually only a few minutes and it's not been a problem.

    For running extended periods, I could run it with box lid open and still get ~80% sound reduction.

    I couldn't live without it now- hated that noise!

    As to overheating

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  4. #3
    Neale's Avatar
    Lives in Plymouth, United Kingdom. Last Activity: 8 Hours Ago Has been a member for 5-6 years. Has a total post count of 1,162. Received thanks 209 times, giving thanks to others 5 times.
    I thought that most of the cooling came from that high volume of air going through it? Comes out of mine fairly warm, anyway. Not a lot of scope for cooling apart from that, especially in a plastic-cased model like mine (35 from Wickes).

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  6. #4
    Quote Originally Posted by Neale View Post
    I thought that most of the cooling came from that high volume of air going through it? Comes out of mine fairly warm, anyway. Not a lot of scope for cooling apart from that, especially in a plastic-cased model like mine (35 from Wickes).
    That is an excellent point. Thanks.

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