My chimney is not used anymore. Would it be possible or recommended to use it to vent the basement ? I would clean it and install a fan at the basement end.


  • It's usually easier to just install a vent out the side of the house, as you would for a clothes dryer.
    – keshlam
    Oct 8, 2015 at 12:49
  • That wall is already like a Swiss cheese and it is starting to form cracks I do not want to put any more holes into it..
    – MiniMe
    Oct 8, 2015 at 15:09

1 Answer 1


Yes you can. You don't have to clean it & seal the fireplace up or was non-existent. Meaning, the chimney was just for a basement gas appliance or fixture. Natural convection will do it's thing, but a little fan won't hurt, small bath sized exhaust fan 50CFM.

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