Hello. The bits I was looking for are the smoke maker that Graham was producing complete with mini fan that I controlled by electronic switch, it was very effective, my recent builds were all modern vessels so smoke was not needed, I am now building a 1928 ferry so this unit would be ideal, I know there are vapour units available, but in my view, water and electrics in a confined space are not ideal bedmates, any help would be appreciated.Howard Q.