Old boiler flue advice

[diy100]

Hello there. I'm new to this forum and would be grateful for a bit of advice. Myself and my girlfriend recently moved into a rented property where the landlady has had the old boiler which was in the living room replaced with a new boiler located elsewhere. Her handyman has boxed in the old hole leaving a 450mm x 15mm gap at the back for ventilation. The only problem being that there's about 2 foot of old corrugated flue dangling above this. Although not visible when it's windy we get quite a loud humming sound which i assume (i may be wrong) is this length of flue which is left free to vibrate. Common sense tells me that cutting this off where it goes into the chimney wouldn't affect ventilation and might help to reduce this noise? Any advice would be much appreciated and perhaps there might be a better solution.

 

[Reg Man]

Sounds like The fitter has left the old steel flue liner in the chimney. The vent at the bottom is to ventilate the brick chimney to stop condensation, I am not sure the vent fitted will do much good, unless there is an opening at the top of the chimney brickwork. All its doing is ventilating the steel liner, which is not necessary.

Best solution, is to remove the old steel flue liner and fit a pepper pot (ventilated chimney Cap) on the top of the chimney and ventilation grille on the boxing at the bottom.

 

[diamondgas]

:iagree: or have the chimney capped if it's no longer in use?

 

[dancinplumba]

any unused chimney must be ventilated as stated by building regs

 

[diamondgas]

any unused chimney must be ventilated as stated by building regs

Ya learn something new every day Seen loads just boarded over and capped, maybe builders don't read building regs :lol:

 

[diy100]

Cheers for the input guys. There is a ventilated cap on the chimney from what i can see. I think the sound is actually caused by the wind howling down the chimney. If we stuff the end of the pipe the sound is basically gone. Obviously that stops ventilation so maybe theres not alot we can do unless theres a safe way of sealing the old pipe but still allowing some air flow.

 

[dancinplumba]

Ya learn something new every day Seen loads just boarded over and capped, maybe builders don't read building regs :lol:

no they dont, they just rip out fireplace and block it up, but regs state must be ventilated, stops condensation