I was talking Daniel about that last night, I don't have my sensor right on the heat tape. This is where it should be? The way the rack is setup is with a channel along the back where I ran the flexwatt so nothing is touching, the tubs are stoped by a lip that is part of the shelf frame. The tape is along the bottum back of each level with the sensor currently attatched to the lip which makes it slightly in front of and above the tape itself. I am hoping to have a better reading today after its been running for a bit.
Thanks for the advice.