Good looking engine - didn't realize you could run them on citronella oil which is a slick idea. Kind of makes me want to keep my Weedens - maybe there is shelf space for them after all.
just the kerosene lamp wick ones. its the same setup as a lamp too. I dobt know about the alcohol burners I doubt it would work as well. In fact i tried denatured alcohol in this engine and it almost removed the paint!! so oils only now. i enjoy how it smokes I hose it off gently in a dishpan to make sure parts dont fall off. mainly just chimney soot.