Hello: I bought alcohol at a local pharmacy. The pharmacist ordered it and it is Isopropyl Alcohol Anhydrous USP not less than 99%. I hope this will be OK to use it was 23.00 a gallon. I will also need to have some kind of a suction fan to keep the draft up while building steam. I have tons of computer fans but don't really know which size to use, I have 40mm 50mm 60mm 80mm 120mm ect...any ideas or suggestions? Maybe just buy an Aster one? The engine is an Aster Shay. I have never done this before or never even been around anyone doing it so any help would be greatly appreciated. I don't want to fire it up as of yet because I don't have any place to run it would it hurt it to just sit there with steam and not move. Hopefully I will have my track in about ten days and my son and I are really looking forward to run it around the track! We have the DIY network's Workin' on the railroad garden railroad series memorized....