Quote Originally Posted by yellowbelly76 View Post
Hot glue wasn't the issue. The UTH is self-adhesive...peel off the paper, and the glue is there to adhere to the underside of the tank. If the probe is between there, how hard will it be to get out? Plus, how much glue residue will be left on the probe? That is what my concern is.
I would then tape the probe to the outside of the UTH.....It would be your probe, UTH then the bottom of the tank. From here use a probed thermometer like the one below to measure the temps on the inside.

http://www.walmart.com/catalog/produ...duct_id=896347