Next door

[yassa]

Have a gas boiler, condensor one i think. Every now and then it lets of steam and makes a fog horn sound which can be heard from quite a way away, an ideas, it does my bloody head in?

[CSG2306]

Hi Yassa,

If I may suggest, have a friendly word with your neighbour informing him or her of your problem and ask the neighbour to have the boiler repaired.

Regards

[makemesmile]

I've encountered this - it IS bloody annoying - especially when they leave their heating on through the night!

[gasman]

The Steam as you put it is normal as the flu gas temperature on condensing boilers is at at a lower temp than the older boilers, so it condensates as it leaves the boiler into a cloud of vapour. Where as the older non condensing boilers flu gases condesate higher in the atmosphere, so you hardley ever see it, this is called pluming. But the noise is a problem , maybe due to a failing pump or even just poor installation and the pipes are vibrating due to inadequate or not enough pipe clips. You need to mention this to your neighbours.

[buildersmate]

The noise is surely the powered fanned flue.

[cool-russian]

yassa I think this is a good solution as any!
After the exhaust fumes go out of the chamber, rather than squirting more gas into the boiler chamber, it injects ordinary water inside the extremely hot chamber, the water immediately turns to steam� expanding to 1600 times its volume� which forces the steam down for a second time; this is known as secondary heat extraction.

Another cycle pushes the steam out of the chamber, and out of the extractor .thus creating a fog horn sound in the trade this is known as the clear fog horn sound. The only solution is a heavy water supply when the heavy water exits the system thus creating heavy steam this drops on the ground and rolls around, this is known as the heavy water cymbal sound this is often preferred to the fog horn sound because of its musical qualities.

[yassa]

Thank you all for your ideas, i'll try them and let you know.