Return to the Fireplaces Forum | Post a Follow-Up

 o
gas fireplace flame blue

Posted by trud (My Page) on
Mon, Jan 8, 07 at 22:36

My Lennox gas fireplace turns on then very quickly the flame turns blue then goes out.If I remove the glass, it works OK. What is happening? At the top of the firebox, there are two openings covered with lids. What are these for?


Follow-Up Postings:

 o
RE: gas fireplace flame blue

You have a direct vent fireplace. The flaps are pressure relief flaps. They should cover the hole they sit on. These flaps have nothing to do with the flame dying out. What you describe is caused by lack of combustion air into the fire chamber. This lack of combustion air is causing the fire to starve and go out. Pretty much the only thing that can cause this air starvation is a restriction in the combustion air intake in the flue system.

Who did the installtion? What model is it? Where are you (city) located? Is it vented straight out the back,through the roof or other.
If a new home, go to your builder first. They will contact the fireplace subcontractor. The builder will have more "juice" than you will in getting it corrected.

Until then don't use the fireplace.


 o
RE: gas fireplace flame blue

Thanks for the info. However, when a repair person come to our place, he put insulating rope under those flaps where there was none before. Now the fireplace works fine. I don't understand this since the fireplace has worked for eight years prior to this without the rope.


 o
RE: gas fireplace flame blue

I found out that my fireplace is doing the samething, it worked all through construction and a year of being in the new house. Now if I start the fireplace it will run I see the flame start to flutter then I shut it off. By doing this 2 or 3 times the fire is normal and it runs till I shut it off. My question, is the flue to cold and needs time to vent properly or is there a combustion problem?


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Fireplaces Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here