Evening all! Thank you so much for the advice, I am really grateful for it as I was clearly about to CO poison myself with the current set up!
Yet again day light is not on my side so can't take pictures. Basically it's a wood/coal burning stove with a straight chimney which comes out through a mushroom vent- By this I mean an air vent with mushroom cap.
Now, Ive read the advice in the link posted by tom richmond- thanks so now I have a couple more questions (sorry!)
If I were to install an outside chimney then would this become a safe system? (Assuming all other safety points were adhered to). Should a chimney liner be used-not really sure what one of those is for exactly (showing yet more ignorance im afraid!)
Thanks again