Flue Length

[barch]

Hi All.
I hope you can help. Ive been asked to helpwith finding out why a FErroli HE26 keeps reporting a flue error after about 1 hour of operation. Its a fairly new install and has always worked this way. It reports an A21 error every time the bolier is used for about an hour.
Ive looked in the manual (wow!) and the install pics seems to suggest the the distance outside of the external wall that a flue can protude is very exact. For a rear mounted flue its only 60mm and for a side mounted 80mm. As it happens, the unit is flue is back entry and it measures 80mmm from where it exits the wall. Dies it really need to be this exact?
thanks
I

 

[barch]

What no one? Any thoughts?

 

[Dan Robinson]

If you are Gas Safe registered, sign up for the Combustion Chamber and ask in there.

If you are not an RGI, call one.

 

[barch]

I called Ferroli and the answer to my specific question was, no, the flue length isnt that critical.

 

[Alex10]

No chance. Ask your gas engineer to check for you it's not your department.

 

[Dan Robinson]

Ferroli make shyte up all the time.

Like their warranty policies. Depends how long they have to wait for a bailout from their parent company - which depends on how long they have to wait form Italy to get a bailout from the rest of Europe.

But then who gives a toss - no person in their right mind would ever fit one anyway. Let those who do crack on.

Darwinism at its finest .