Hey Aaron,
As you know, I've got a very similar T8 setup. I'm now starting to rethink my heating method - a single 11" strip up the middle of the T8 where the divider is. Going with 12" across the back seems like the right direction, but I question if 12" is necessary, as it is 50% of the width. From Rich's Heat Tape FAQ (Reptile Basics), he doesn't recommend going more than 1/3 of the floor surface area which makes me lean towards 6" over 12". Any thoughts?
Regardless of the width, is 48" the right length for our T8s across the back? I only ask because I'm wondering if any extra length needs to be accounted for when considering the wire/clips/insulators that go on one end. Of course I could ask Rich, but I figured I'd ask you since you've got the setup in place already.
Thanks, man!
Best regards,
Eric