SO while cleaning I notice this grossness under the cabinet where the propane stove adaper exits to attach the stove. I thought that it might have been put away hot and that had yellowed the lineleum but it is a strange goo like consistency and all sorts of nastyness has stuck to it. I do not have a weak stomach, but even I found it gross. So, I have scraped up most of it and also noticed that the insulation to to the wire running to the heater has melted off. Good think I notice before I cranked up that heater. So, what is it? What caused it? How can I keep it from happening again? And what kind of wire do I need to replace the wire to the heater.? Thanks! You people are the best.