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vibration noice from smoke pipe when the burner runs

sam_4 Member Posts: 1

I have a Burnham oil heat burner, 6 years old in the basement. Whenever the temperature drops and the burner kicks in, there is an enormous amout of vibration noise coming from the sheet metal flume or chimeny pipes, which has an exhaust fan at the end to pump the flume out of the burner.

The Chimeny pipe is made of galvanised sheet metal pipes joined together by metal screws. The oil burner service tech, put a couple of extra screws to keep the chimeny together and to reduce the noise, after he did a regular service, but it didnt help much to reduce the noise. Its worse when the house is quite at nights.

Iam thinking of adding some sound insulation (rock wool) covering the the chimeny pipe. I dont know is this a good idea. I like to know anyone had this problem and got it resolved?




  • Dana
    Dana Member Posts: 126

    Its not supposed to vibrate to the extent of what your describing. Get someone in who can resolve the problem.
  • What you are describing

    is a boiler with an aftermarket power venter installed to take the place of the chimneey that you probably do not have. The question is.....is the vibration coming from the power venter motor and fan assembly or is it coming from combustion resonance from the boiler. The power venters most always have a post purge cycle that keeps them running for a few minutes after the boiler burner has turned off. Do you hear it during this time period?

    Glenn Stanton

    Burnham Hydronics
  • Steve Eayrs
    Steve Eayrs Member Posts: 424

    If it just started doing this, and had been workign fine before, it could be the bearings are going out on the old power venter, or its out of balance, due to a buildup of soot/carbon on the power venter fan. Will cause more vibration than before and therefore more noise. Just one idea, but could be it.
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