Alas, on the coldest night of the year so far, the boiler decides to pack in. It is ancient so its hardly surprising, but a tad ironic. It seems the pilot light has blown out and will only light very weakly with a lighter. I think the pilot light isn't hot enough to warm the themostat enough to make the whole thing go 'woof!' as it were- the other problem being that the ignition assembly is riveted to the chassis making it difficult to de-coke the bugger. any ideas? Brrrrrrrrrr!