I have a Pres. Alc. Stove and replaced the nipples and a few other minor o rings. I have the original manual with part numbers etc. as I read thru the manual for the step by step procedure ( how many pups. when to turn the valve, how far to turn.) they make mention of some kind of a gel type pre heater fuel. I think I saw something on this forum about sterno. is that correct and if so where do you put glob in relationship to the elements? and how much better is it when lighting the stove. I have to think anyone who has ever lit one of these things knows the excitement that comes with it. Its kind of like rolling the dice with each attempt. Thanks Grigs