Click here to Find a Contractor in your area.
Welcome! Here are the website rules, as well as some tips for using this forum.

If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
Need to contact us? Visit

switch over from auto-lite pilot to standing pilot - damper question


I have a utica boiler (mgb) that was switched from a auto-lighting pilot to a standing pilot due to reliability issues with the auto-light.  I have an automatic damper on the unit with a small exhaust hole.  I went down to inspect the work and noticed that some warm air/exhaust was coming out from the front of the hood.  I am concerned about CO with this so I shut-off the auto-damper, leaving it open.  Has anyone else had a similar issue or could you offer some advice?  Do you see a potential CO problem with leaving the auto-damper engaged?




  • SteamheadSteamhead Member Posts: 13,820
    If the boiler had been running recently

    it's probably just air drafting thru the sections. But why not have it checked with a digital analyzer to be sure? If whoever did the work doesn't have an analyzer, find someone who does. 
    All Steamed Up, Inc.
    "Reducing our country's energy consumption, one system at a time"
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Baltimore, MD (USA) and consulting anywhere.
  • Tim McElwainTim McElwain Member Posts: 4,365
    Do you have a CO detectot?

    If not a good idea to get one. It is also a good idea to have a spill switch mounted on the draft hood just in case flue gases spill into the room.

    Have a professional come and do a combustion test and install a spill switch (blocked vent switch).
  • [Deleted User][Deleted User] Posts: 0
    edited October 2009
    tech said no issue

    I have a CO detector.

    The tech said there is no issue that it is the same as having a pilot light on the stove.

    Thanks for your replies.

This discussion has been closed.


It looks like you're new here. If you want to get involved, click one of these buttons!