I using flexwatt in a coke cooler ( store display type about 4-5 ft tall with shelves. ) but ialso placed flexwatt ( going down one side and up the other side to make sure I had enough heat in there . ) I did it simple by drilling a hole in the tope corner ( make sure you palce it low enough that the wire are able to be grabed and such my hole was a bit high and i had to fight to get th probe and wires in the usable area.) then I foiled tape over the hole and atapeed enough of the cord to the top so I can not worry about snaggin it when I goingin and out of the room .