Discuss Anyone any idea why FGT is 252c in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Where was the fgt taken from?
Hi best,
I used the hole that has been drilled near bottom centre of the flue near were it meets the boiler.
I assume you mean a hole drilled in the actual flue?
I just was checking that, because was thinking you maybe were using the cleaning door test point, which would be too hot.
Ideally on a standard efficiency oil boiler the flue test hole should be away from top of boiler a little - 300mm if possible in my opinion.
Are the boiler baffles in good condition plus staggered properly and shell clean?
If all correct then your nozzle maybe faulty
I edited my above post and added a couple of points to check
Yes there was a hole from previous services. All is in good order internally and baffles back in correct order. I might pop back tomorrow and try another nozzle, the flue is the old type with enamel coating on bottom half
Thank you for your reply
Doesn’t happen often, but sometimes a faulty brand new nozzle causes bother.
I saw a 120 Warmflow Bluebird that was burning serious and put pure bitumin coating (literally) on inner shell. Turned out it was the service idiot had just prior to this, put a new nozzle - a 0.5 instead of a 1.0 gallon Danfoss nozzle. Was seriously overaired
Would that kind of temperature be a real drama?
Maybe not on your boiler.
I forgot to ask you what output of boiler it was?
I find the Warmflows of that vintage had tight baffles that get easily damaged if severe heated and although if lots of sulphur blocks around the baffles it obviously results in them being over heated, it also happens to fairly clean ones
I think it was 26.4kw output
Fairly big boiler then. Flue temperature should be low on that though.
An example of real overheat was on a 50/70 bluebird I went to service and discovered NO baffles. The oil pressure had been accidentally raised by the tenant to I think near full gauge pressure . But it had been left like that for a long time.
The two baffles had just nearly disappeared, with just fragile thin pieces of metal in boiler base.
Must have cost some kerosine
Yeah I was thinking around 180 to be honest. I will look further into it
Thanks
Reply to Anyone any idea why FGT is 252c in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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