Trianco Eurostar Oil Boiler Conundrum

[Bunker]

Did you post pics and tips on replacing the seals on a trianco eurostar balanced flue? I am at present wrestling with this cycling which goes away if I remove the air inlet hose, blanking off resulting hole to the flue. Any help would be much appreciated!
thanks creens

Is there enough combustion air in the room to leave as conventional?

 

[creens]

Is there enough combustion air in the room to leave as conventional?

the boiler is in a dedicated room vented to the rest of the house. Noisy but appears to run ok. probably less efficient using cold air?
thanks creens

 

[Bunker]

Work out the air needed for the output and you may need to add some air bricks (which the wife will cover up).

 

[creens]

Work out the air needed for the output and you may need to add some air bricks (which the wife will cover up).

Thanks for the reply. Seems to be running OK. Will get it checked when engineer becomes available. I would still like to look at replacing the two O rings in the flue though if it's not too difficult.

 

[MarkOil]

It's not 'O' rings, it 2 x red rubber seals that go hard, shrink and crack letting combustion products escape. I have changed some on a flue, then about 6 months later the same problem occurred, so I ended up installing a new Grant.
Changing the gaskets was a half day job, then to do it again did not out way the savings they would make with a newer boiler, turns out they are very pleased with it as they have saved a lot of money in the few years of having the new boiler.
My suggestion, replace the boiler, Trianco's are naff.

 

[creens]

It's not 'O' rings, it 2 x red rubber seals that go hard, shrink and crack letting combustion products escape. I have changed some on a flue, then about 6 months later the same problem occurred, so I ended up installing a new Grant.
Changing the gaskets was a half day job, then to do it again did not out way the savings they would make with a newer boiler, turns out they are very pleased with it as they have saved a lot of money in the few years of having the new boiler.
My suggestion, replace the boiler, Trianco's are naff.

Thanks for the comments MarkOil - stuck with the Trianco for present

 

[WHPES]

Photos attached







Photos 2 and 3 showing new gaskets in place before reassembly. Some earlier models used heat resistant silicone rather than gaskets so if thats the case, be prepared to get messy!

 

[creens]

thanks for that - I'll have a go next time I shut down