Oh I had one last question. I have been reading the forum about the Zoomed UTHs but I couldn't find the right answer for this.

Do you remove the paper backing or not?

I have aluminum foil tape and I do plane on taping it to the bottom of the sterilite tub, but the instructions say to remove the paper backing or is that a ploy to get you to buy more of these things? I'll be using a thermostat of course with it as I know these seem to be notorious for overheating.