Setting up Flexwatt and fire safety questions

[drama x]

The flexwatt should sit on top of the shelf, directly under the tub (so the tub sits on the flexwatt)

Ok, thats what i figured.

you can either get 1 long strip of flexwatt and snake it through all of the levels, or you can have it cut into individual strips for each shelf. There is no real difference between the 2 ways.

Which would you recommend? I feel like if i snaked it that would be alot of heat and be a potential fire hazard. But then again i feel if i take individual stripes, lets say 6 for 6 shelves, it would take up an entire power strip and be just as bad.

I don't know maby im just be paranoid but i just want to play it safe lol.