Should flue be completely sealed up through the roof?

Discussion in 'HVAC Heating & Cooling' started by STyler, Nov 1, 2009.

  1. STyler

    STyler Member

    Sep 9, 2009
    Rock Hill, SC
    I had my furnace replaced a few months ago and they moved it about 4 feet from its old location. I just noticed recently that the flue has an opening into the attic. It comes straight down to a "wye" with the angle heading to the furnace flue - but the straight down portion of the wye is just open to the attic space.

    Should this be sealed off, or is it some kind of passive draft inducer for the combustion gases. Seems like there should be no opening from the furnace to the outside air.
  2. gluecan

    gluecan New Member

    Aug 30, 2009
    have them come back and fix it then back charge them for your time for such a shitty job the frist time
  3. Sponsor

    Sponsor Paid Advertisement

  4. nhmaster

    nhmaster Master Plumber

    Jul 30, 2008
    Tech. Instructor
    S. Maine
    It should not be there. Any draft regulator should be installed in the flue pipe as close to the appliance as possible.
  5. Lakee911

    Lakee911 I&C Engineer (mostly WWTP)

    Aug 23, 2005
    I&C Engineer (mostly WWTP)
    Columbus, OH
    Bad bad bad ... if I understand what you're saying, it sounds like a piece of pipe is missing. Shouldn't run it until you get it fixed.

Similar Threads: Should flue
Forum Title Date
HVAC Heating & Cooling Adding HVAC register - should be simple...but maybe it isn't. Dec 14, 2015
HVAC Heating & Cooling Heating Basement & Up satires Should you separate heating systems Sep 1, 2014
HVAC Heating & Cooling Mitsubishi Mini split -should I worry more about enough heat or short cycling? Dec 6, 2013
HVAC Heating & Cooling Should I remove a radiator Dec 4, 2012
HVAC Heating & Cooling Which boiler should I choose? Burderus GB 142 or HTP Elite FT 80? Apr 18, 2012

Share This Page