I believe from info I have, that this model is a tro 20/25. Recently I notice that there are soot deposits on the path beneath where the flue is located.
Since discovery of the soot deposits, I have also noticed when the boiler fires up, a metallic rattle/clatter from within the boiler housing.
I am assuming that the boiler is not burning cleanly and wonder if the metallic noise is some sort of vent or choke.
Does any-one have any knowledge of these old boilers and advise a cure...other than a new boiler.
Since discovery of the soot deposits, I have also noticed when the boiler fires up, a metallic rattle/clatter from within the boiler housing.
I am assuming that the boiler is not burning cleanly and wonder if the metallic noise is some sort of vent or choke.
Does any-one have any knowledge of these old boilers and advise a cure...other than a new boiler.