yea just back heat, two 11" strips of flex running down the back.

but if you put the 3" flex in the front, you'll lose alot of that heat out of the rack. with it in the back (maybe like 3/4's back) the heat will be retained in the rack. so i can get a 92~ floor temp and a nice and toasty ambient. then the cool side will warm up alittle (hopefully 83-84).

i plan on just using this as a corn rack (or rat snake rack) and when i get my funds up a little more (and a few more BP's) i will get another rack just for BP's. so right now it's a temp home for my lil girl BP. i think i am going to put dome 3" flex down on the top shelf and see how the temps hit there, then if it's good maybe do the other shelfs.

this is all just planning in my head, but any other ideas are welcome.