detach the snorkel on a balanced flue

[apcdave]

Hi chaps,

Bit of a bugger today - warm flow Utility 150HE , situated in a garage with a balanced low level flue It has gone sooty so cleaned it up changed nozz etc etc but when doing the flue gas analysis , no matter how much I opened up the air intake I could not get enough air. `the only way I could get satisfactory flue gas readings was to detach the snorkel and let the burner run using air from the garage. Anyone else had similar probs before?


many thanks

dave

 

[lame plumber]

flue seals knackered?

 

[Dotty]

^^^^^ +1

 

[lame plumber]

strictly speaking it isnt a balanced flue either, just a room sealed one if it sucks air in one part and blows the fumes out the other part..

 

[Best]

Also check that when you turned the Allen bolt air adjustment to make sure the wee air door is sliding open. I see a few of them that the threads have stripped on the bolt inside. Take the spigot off and look inside with a torch. Them RDB air adjustment parts are poor.
Also be sure the flue is correct size for that output - ask Warmflow if not sure. I know a Warmflow 150 utility condensing boiler with balanced low level flue that is tending to soot up and Warmflow had previously said wrong flue for this large a boiler and disconnected snorkel apparently.

 

[apcdave]

thanks for all the input fellas - am I OK to let it run now with the snorkel detached

 

[smitty1892]

+1 with best , same with a warm flow utility. , plastic damper wasn't moving when turning Allen key . Stripped down put back together all good then .

 

[apcdave]

sorry guys -should have said...the plastic damper was working fine / not jammed ,..so opened up fully

 

[jensda]

thanks for all the input fellas - am I OK to let it run now with the snorkel detached

I would be apprehensive about it if the flue seals are knackered you possibly have pocs being discharged into an enclosed area

maybe run a room test with your flugas analyser to check for any co readings

 

[lame plumber]

see post 2, if that is the probable issue dont even use the boiler until you have replaced the seals! god almighty mess will await you in a few weeks, plus, if the intake seals are gone you may well kill your customers