Well,the one I tried kinda sorta burned up. It didn't last as long as I expected it to (about 2 hours) and the flame was quite high (about as high as the can is tall.) After the twoish hours, there was still unburned TP left in the can and for me it wasn't all that warmish anyhoo.
I think I will scratch this idear for now.
Thank you everyone for the feedback.
Michael
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That which does not kill me has made a grave tactical error.