I noticed the firestarter too! Over Christmas I cut the cord end off my father-in-laws heater, as it was ready to burst into flames. Then I cut the end of the extension cord, as it too was ready to burn. Finally I tossed the outlet strip it was plugged into because that too was smoking! My brother-in-law brought new cord ends and we made up new cords while others opened presents. I've had to cut the cord ends off of two of my own heaters too.
Gary H. Lucas