I'm certainly no expert on wood burning stoves but i would have though not insulating the flue is a very bad idea and could result in condensation in the flue and therefore potentially the reason your damp is getting worse.
as mentioned in previous posts it takes vcery little moisture in a chimney to bring out the old salts and cause staining. Did the fitter suggest any reason as to why he didn't insulate it?
Maybe change the title of this thread to include 'Richard C' as i think he is pretty clued up on all things stove and could give better advice than me.
as mentioned in previous posts it takes vcery little moisture in a chimney to bring out the old salts and cause staining. Did the fitter suggest any reason as to why he didn't insulate it?
Maybe change the title of this thread to include 'Richard C' as i think he is pretty clued up on all things stove and could give better advice than me.