Ok so I am going to be getting 4 maybe 5 ap cages at the end of the month they offer belly heat for 45$ is a routered in heating cable. What I want to know is can I use flexwatt to heat ap cages from the outside effectively ? AP cages are 1/2" think. If so I am going thru matt since I could probley heat all the cages for waht they want for 2. Just need some tips from people who heat plastic enclosures.