Tubs directly on flexwatt?

[yeroc1982]

Then on the piece of flexwatt you have laid out, Tape the probe in between the tubs. Set the tstat and check it.

Heres my setup in rack. I use Packing tape as its easier to remove than foil tape when needed.

I ended up getting 2 pieces of flexwatt, 1 for each. There is a few inches of flexwatt hanging out at each end of the tubs so I will place the probe directly on the heat like you have in the pic. Thanks for all the help