boiler knocking

[Leadbetters]

Hey does anyone know why this raven heat has started knocking,not all the time but is knocking.
I thought gas pressure but aint, then pump any ideas

 

[GasmanxxxR1]

Raven Heat = Raven Heap

 

[doitmyself]

Do you live in a hard water area? If so, the knocking is probably kettling due to the heat exchanger furring up. Adding Sentinel X200 will reduce this.

 

[SafeGasInstall]

let Santa in 🙂

 

[diamondgas]

Would help to know mode; details leadbetters?? Knocking on hot water heating or both? etc...etc...🙂

 

[Leadbetters]

Knocking on both

 

[PlumbBobBob]

let the borrowers out

 

[diamondgas]

Soz my previous post should have said "model" details 🙂

Is it a combi? AND is it heat or hydraulic related? If you extinguish the heat source does the knocking disapear?

 

[Leadbetters]

Ravenheat low nox and sounds like Heat related maybe the combustion chamber

 

[diamondgas]

More than likely, as meantioned B4 by Doitmyself, posible scale. Is it in a hard water area?

 

[Leadbetters]

Yes but it's only been fitted and used a month

 

[PlumbBobBob]

i would get the installer back to have a look at it

 

[diamondgas]

Get the manufacturers out ledbetters .. I'm out of this one :waving: