bumblebee

thanks folks for your surgestions, will carry on and eventually get it right!

yes we are going to go back with it, other boaters here have tried it on their chimneys and it doesnt fit any others either, thats why it seems it maybe an import. And with having two chimneys that dont fit, made us wonder.! we have been told by a stove fitter that the colars are made in india now.

yes, its a bog standard fit, 6", having measured the rim of the last chimney it is a fraction off the 6" accross.

Why have new chimneys shrunk!? we have bought 2 new chimney,s from 2 different chandlers and neither fit our outer colar, and we have asked other boaters to try the chimneys on their boats they still dont fit! WHY??? Is it because they are imported in, and they have been made in metric measurements, please has anyone else had or got this problem?