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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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boiler/ flue noise
Anyone good with strange noises from boilers? I have a Glow Worm II
boiler that has been making a racket for some time and I think I really ought to fix it or get someone in. It started about 3-4 years ago, when a noise reminiscent of whale song could be heard each time the main burner came on. Since then, it has been getting louder and louder and now it is a dreadful, screeching, juddering noise of varying pitch. The noise seems to be coming from the flue and, for want of a better description, it sounds like high pressure gas passing through a restrictive aperture. I should mention that it only occurs when the ambient temperature is low (at best guess, when less than 4 deg C). Any ideas? Is there a valve that regulates exhaust gas flow in the flue and could this be the problem? I had imagined that the flue would just be a simple chimney. Thanks in advance, Jim, |
#2
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"Jim Walsh" wrote in message ... Anyone good with strange noises from boilers? Yes. Our 20 yo Apollo has started moaning and grunting and, at times, shuddering ... I'd like to replace it anyway (not with a combi) but Spouse keeps promising to fix it. When he gets round to it ... Mary |
#3
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My balanced flue boiler does the same whale noises - it's caused by the
resonance of the flue by the exhaust gases escaping and only occurs when it's cold/still outside. You can sort it by wedging a metal rod of the right length between the sides of the flue on the outside.... Chlo "Jim Walsh" wrote in message ... Anyone good with strange noises from boilers? I have a Glow Worm II boiler that has been making a racket for some time and I think I really ought to fix it or get someone in. It started about 3-4 years ago, when a noise reminiscent of whale song could be heard each time the main burner came on. Since then, it has been getting louder and louder and now it is a dreadful, screeching, juddering noise of varying pitch. The noise seems to be coming from the flue and, for want of a better description, it sounds like high pressure gas passing through a restrictive aperture. I should mention that it only occurs when the ambient temperature is low (at best guess, when less than 4 deg C). Any ideas? Is there a valve that regulates exhaust gas flow in the flue and could this be the problem? I had imagined that the flue would just be a simple chimney. Thanks in advance, Jim, |
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