New Boiler Hum

JimmyChanga

Depends on how noise sensitive you are. Without being there it's hard to say if it not normal. Not just a case of noise immediately at the boiler but that is transmitted through the connecting pipes further away. Water passing through at high pressure will also cause that. No plumbing is ever going to be silent.

You might be able to reduce it by making sure all the pipes are well clipped. Or maybe even trying to back them with rubber. You can always get another fitter in to check it.

southcoastrgi

You think it's noisy now, wait until the temp drops & its runnng half the night to stop itself freezing

RelievedSheff

jefaz07 wrote: »

I don’t think it is normal no...mine doesn’t do it...nor do the ones I’ve fitted this year.
I have an Ideal Logic and you could stand in front of it and be hard pressed to tell it’s running without looking at the display.
With regard to what it can be it’s obviously hard to say from here. Faulty component, some first/solder blocking water jets...a gas pressure issue which would get worse when ran on hot water as it uses gas at max rate. A water turbine...lots of things. Get him back, your warranty will be 5 years plus?
What Worcester is the boiler? The I model or Greenstar?

Your Ideal Logic must be a damn sight quieter than ours then!

We moved into a new build property in April with an Ideal Logic ESPI 35 installed and whilst the noise is not overly intrusive you can certainly tell it is in use when in the kitchen where it is installed.

There is also a fair amount of fan noise from the boiler which is noticeable in the single bedroom above where the boiler is installed. This isn't a problem to us as that bedroom is not set up for sleeping but is more of a chill out room. But if someone was to sleep in there they would certainly hear the fan.

neilmcl

panpan wrote: »

So the low hum is not normal? Interesting. What could it be?

It's perfectly normal, particularly for a WB combi when in use. The whirring will simply be the fan or pump starting up.

neilmcl

jefaz07 wrote: »

I’m afraid it isn’t normal!

Sorry but I simply can't agree. I've never been in front of any combi boiler that doesn't make some noise when in actively in use.

Johnhowell

May I suggest that you are not hearing the boiler directly by the vibration through the house structure? May be mounting it with isolation pads of some sort to stop the vibration travelling?

I wish my old boiler was quiet, even a low hum would be nice...

Good luck

Mutton_Geoff

I assume it's bolted to the gable wall in your loft but it sounds like pipes are touching or fixed to the ceiling joists which is why there is mechanical feedback to the ceiling. My guess is pipes are in clips fixed to the joists. Separate those and the noise should go. Also might be worth using Rockwool sound slab instead of loft insulation in the vicinity of the boiler and the rooms below.

bris

Some boilers do have better housings that make the operations quieter than others but none that I know off are totally silent.


The main issue you have is a bedroom at night when trying to sleep is a very quiet place, this will highlight even the quietest boilers running.
You might want to think about better soundproofing for the loft space.