heat tape?

would heat tape heat a 8x4x2 cage? how much would i need? and how much of the ground space should it cover?

I would cover half of the bottom....

alright so basically cover a 4x4 area. thanks, ill be ordering the heat tape off of you in a few weeks.

Right on, thats how I set up my large cages.. All my big girls can be completly on or off the heat:)