There are ways of removing it, to prevent damaging it. You can see how by checking out the link below
http://ball-pythons.net/forums/showt...o-Remove-a-UTH!
If you don't do it this way, and you just rip it off, it will likely not work right, and the heat will be uneven, possibly causing a fire hazard.
As for humidity, I was having problems too. First off, do what it says in the link below
http://ball-pythons.net/forums/showt...tment-Tutorial
Next, I bought moss, which when wet activates itself, and creates a kind of biosphere in the tank. Next I bought a repti fogger, which helps boost that humidity. This should really help as far as humidity goes.
Hope I helped.
