How long is a piece of string?
I've measured my flue in a 'standard' chimney and it is square with 8½" sides. I think this is likely typical. It has 2 kinks and is otherwise clear and swept.
I've wipped out a 5" liner with no trouble at all and I'd guess by the inferred slop that 6" wouldn't be a problem. I need to get a 6" flexible liner down here by the usual feed and pull method.
So am I likely to be screaming or will it go without hitch? Anyone done this care to share their experiences? I realise the advised method is to pass a trial 1m length through, but I'm just too tight (or foolhardy) to waste a metre.