One for the plumbers on here
- Thread starter sawtooth
- Start date
williamalex1
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D
Deleted member 1740
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Sound, I didn't see this link initially. Your new boiler will probably have an AAV fitted inside the boiler so answer to your other question no.
D
Deleted member 1740
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I thought all new boilers were now fitted with an internal bypass
Only Combi boilers do.
sawtooth
Tour Winner
Could someone identify what the valve with the thumbwheel (pictured) is meant to be doing?
I've been trying to bleed the system as I hear rumbling and gurgling in the pipes and rads. I may have turned the wheel and now don't know whether it was mean to be fully open, fully closed or somewhere in between. No idea what it does.
The noise in the rads seems to happen mostly when switching CH on/off but there might not be a pattern to it.
There is an AAV (pictured) which was put in a couple of years ago, however the boiler which was downstairs was taken out and replaced about 4 months ago due to an extension build. The new boiler is now upstairs.
I am told that it can take months to expel all of the air in the system but another thing crossed my mind. Can air still escape via the AAV (pictured) if the boiler is now higher than it?
Also any tips on best way to bleed system would be greatly appreciated.
View attachment 17041
Stu, the final question was around the AAV and the new position of the boiler which is now slightly higher than the AAV.
Can the AAV still work effectively? Seems to me that the highest point of the system is now at the boiler since it was moved or is that nothing to worry about?
sawtooth
Tour Winner
Ok I think I was typing up the last post when you posted this.
Does this mean that eventually the air will come out of the system by itself? Its a Worcester Bosch 18Ri (I think).
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Deleted member 1740
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Sorry, the Ri range don't have an AAV fitted. It'd do no harm to fit an AAV near the new boiler. Is the boiler "banging" or "gurgling"or is it just the radiators noisy?
sawtooth
Tour Winner
More like tap tap sound but I put that down to the pipework just getting hot and floor boards etc. Might be boiler I don't know.
But yes I do hear the rush of water sound through pipes/rads in the bedroom , small hours of the morning when the heating kicks in.
Heres a pic of the boiler , it was installed immediately above its original location downstairs. Where would the AAV go? Ta.
D
Deleted member 1740
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The tap tap noise is probably the pipes under the floor are too close together so when they're heating up they're expanding or they're not properly clipped.
I'd say a new AAV won't make any difference if I'm honest and it sounds like there's just a small amount of air in the system that'll just work its way out.
I'd suggest bleeding the radiators when the system is cold starting from downstairs and see if that helps.
Also vent the magnetic filter you've got fitted, the vent is on the top of it.
