In the old part of the cottage we have original wide chimneys that you could send a child up to sweep lol! one was open right up, you could see the stars and the other was covered in with corrugated iron. There was a hole in the centre for the stove pipe and at either side two more holes but covered over that could be opened to clean out. It stops the soot and you don't end up with birds nest soup. I'll have to take some more photos tomorrow. Going to bed now..after being a member since 2008 I have finally got the courage and knowhow to communicate and may be in danger of becoming a JT addict Ha Ha!!