Hi All, My Keston C36 combi is nearing the end of its life and I am now just hoping it will cling on long enough for me to finish saving for its replacement. However, I've just had BG in to do my annual safety check and they've told me I will also have to replace the flue when I replace the boiler. No specific reason given just something about regulations. My boiler is situated internally as I'm in a flat and, after new regs were enforced about 5 years ago, a flue was run from my flat and across an external corridor to the outside wall. All in, it's probably about 10m long. The engineer said they would probably need to rip out and replace the whole ceiling as well. Is this for real or is BG just being overzealous? I'm far from an expert but I don't understand why I would need to replace a nearly new flue if I can get a boiler that takes that flue size (which is presumably standard)? Thanks in advance for any information or advice!