Well- for goodness sake!!!!!

[Nicos]

We've had a heating engineer( nah..not M Gere!) here today suggesting different types of boilers/heat exchange units- and one of them which was recommended varied between 47 and 52decibells.
Now being an ordinary type of lass- I had no idea how loud that is-I googled it- and came up with this link!

Floorscan Acoustics - Decibel Chart

Very useful cos you can point to the picture and it makes that noise level....well, that is if you have your volume set correctly
Needless to say I can turn mine up or down- so what is the 'normal' setting for the speakers on the computer??? ( mine gos up to 10=MAX) ???5????

So how can I compare that to a 'normal' gas boiler etc????

[BrideXIII]

no idea, i always have mine up full, but i get your point, i fact i got it before i had finished reading.

i bet my speakers go louder than yours at '10' as well, then there is the onboard level, which can affect the speaker output.

you could go into a decent hifi shop and ask them what 52 decibels sounds like?

[BrideXIII]

checked out the site though, wow thats hard to figure out on my speakers, but..............

listen to your fridge, because that is at roughly 40-50 decibels, so the boiler is slightly above that, which sounds about right to me, cos i cant hear my fridge from where i am sitting, and i can only just hear the boiler when it kicks in.

process of elimination.