Grandee Heating World combination boiler

[simond]

A new oil line could temporarily be swapped over in plastic (cost about £50 in parts) and you could very quickly ascertain whether this was the cause.

If it is, only then go to the trouble of burying/concealing it etc......

 

[sallyanne]

At last - our boiler seems to be working and not cutting out all the time. We had decided to go ahead and put in a dedicated oil line but before we did that, our service engineer thought he'd try something else. After talking to various people, including the manufacturers, he decided the boiler might be burning too clean. He therefore slightly increased the fuel pressure - to 130 psi - and decreased the air input to a CO2 level of approximately 15%. That was done just over a week ago and since then the boiler has worked beautifully and hasn't cut out once. I understand it may now soot up rather more quickly, but at least it's working and we don't need to put another fuel line in. Thank you to everyone who contributed to this topic. Your advice was much appreciated.

 

[oilman]

At 15% I'd expect it to have sooted up by now

 

[wilhelm]

At 15% I'd expect it to have sooted up by now

It will. On a friday afternoon.

 

[geofffowler]

Sallyann
I have exactly the same experience as yourself. I have a Boulter Camry (never a problem) and the Grandee (always a problem) running from the same feed. We seemed to have solved it, or thought we had, by installing a Tiger Loop on the oil feed line as we noticed air bubbles in the feed to the burner. It ran 18 months without too much hassle. This last week it has started tripping out again. Is your boiler still working OK with the mixture settings changed? Heating World are now grandeeheatingrail, same phone as before.

Geoff

 

[AlanE]

Geoff OP probably long gone as thread is around 18 months old!!