Baxi duo tec combi. 28 hot water

[bodders]

New to forum be patient with me baxi duo tec combi boiler 28 , as soon as I turn on Dhw from taps boiler starts kettlining any suggestions cheers

 

[diamondgas]

:welcome: to the forum bodders 🙂

Do you hear the same noise when you put the heating on? Are you getting hot water?

 

[bodders]

No that's fine thanks for getting back to me

 

[fixter1]

are u getting hot water??? is the flow pipe getting hot???

 

[bodders]

No that's fine thanks for getting back to me hot water water fine as well

 

[bodders]

No seems fine but noise is an experience

 

[diamondgas]

Is the hot water getting excessively hot? Unusual to hear of "kettling" from a duotec 🙂

 

[bodders]

No not at all it's like a stone rattling inside the hex

 

[diamondgas]

Rattling is something different bodders .... try turning the boiler off and running a hot tap, see if the noise is still apparent?

 

[bodders]

No the noise has stopped just a gues could it be diverted valve

 

[mfgs]

Blocked plate heat exchanger, or dodgy diverter.

 

[bodders]

Thanks for your help, new gas safe boy I've a lot to learn but I will get there

 

[diamondgas]

The diverter could have a 'rattle' bodders .... I'd be less inclined toward the p-hex as yet especially if you're getting the expected performance from the boiler ..... Lots to check to verify that mind you 🙂 On water only is the heat pushing down the heating flow? best checked from cold🙂