[Frost__2001]

Just a word of warning, when I used my block heater on my focus when I first got it durring the coldest night, in 2004 it was plugged in every night like usual, when my brother-in-law came home and went to plug in the land rover as he was walking over to get the cord he noticed sparks and all sorts going on from the wire leading out from the hood, and there was burn marks on the grille from it on my yellow focus.

So,make sure you check the cord regularly and tuck it back under the hood when not in use, and if the car is used make sure to check the cord to see if it has any wear or tear on it from the previous owner not putting the plug away after use.

also when I left my first focus plugged in all the time after many snow storms there was nothing on the hood or around the cowel as it melted all off, so there are some benifits to plugging it in over night if your wanting to do that.