Grandmothers house has a efm 520 and years ago was converted to oil. I have the pot,gearbox assembly,worm some couplings from pot to worm Assembly. And a piece of steel with a large hole in middle which I believe is an ash diverter.. I'm not sure what these components are worth, they were in service for ten years then removed.. The blower and gear box are quiet when plugged in. I could post pic if needed.. Thanks for the advice.. And have to add what a great site this is if u can't get an answere here it don't exists..