Results 1 to 4 of 4
  1. #1
    RobertSmith's Avatar
    RobertSmith Guest

    Default Power assited fan for flue

    I've never run across this before. There is a power assisted fan for flue because the flue does not have a proper upward slope either in the furnace/water heater closet or in the attic.

    Is this setup allowed? Issues to look for?

    thanks,

    Rob

    Similar Threads:
    ***IMPORTANT*** You Need To Register To View Images ***IMPORTANT*** You Need To Register To View Images
    NHIE Practice Exam

  2. #2
    Join Date
    Mar 2007
    Location
    Near Philly, Pa.
    Posts
    1,643

    Thumbs down not code compliant installation

    Lack of clearance to combustibles
    Positive vent pressure in unlisted connector and vent

    Keep the fire in the fireplace.

  3. #3
    RobertSmith's Avatar
    RobertSmith Guest

    Default Re: Power assited fan for flue

    Thanks, Bob,

    How can you tell the vent and connector is unlisted?

    Also, just noticed, what about the 1ft rise before making a turn. Does the power motor null-n-void that code?

    Rob

    Last edited by RobertSmith; 07-11-2010 at 01:22 PM.

  4. #4
    Join Date
    Mar 2007
    Location
    Near Philly, Pa.
    Posts
    1,643

    Cool Re: Power assited fan for flue

    That B-vent is listed only for CAT I negative vent pressure so it is unlisted for positive pressure.
    No, the fan does not change the code or listing.
    Note zero clearance to insulation, which is wrong.
    Note the adapter for splicing brands and types of pipe, which is not a listed component in most systems. It would also need to be screwed to the B-vent at the slip joint, which would void the listing.

    Looks like lack of proper support.
    HTH,

    Last edited by Bob Harper; 07-12-2010 at 09:28 PM.
    Keep the fire in the fireplace.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •