" Remember to keep an eye on the heat because all petrolium products have a flash point."
I hope to hell you're not doing that in the house!
Kroil's flash point is 150 degrees F!
And you're 50 degrees OVER the boiling point!
http://hazard.com/msds/mf/misc/kroil.html
What you're doing is dangerous as hell if you're doing it indoors. Hydrocarbon vapor in the quantity that a pot full of 300 deg. F kroil would put out would play living hell on your lungs.
And if you're doing on a gas stove, your ready source of ignition for one HELL of a fire is right there.