Anyone any idea why FGT is 252c

[Thomas]

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

 

[Best]

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

 

[Best]

I think it was 26.4kw output

Fairly big boiler then. Flue temperature should be low on that though.

 

[Thomas]

Fairly big boiler then. Flue temperature should be low on that though.

Yeah I was thinking around 180 to be honest. I will look further into it

Thanks

 

[Thomas]

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

At least they were heating the atmosphere

 

[Best]

Yeah I was thinking around 180 to be honest. I will look further into it

Thanks

Edited.

 

[Ginger]

Always follow manufacturers specifications