Rack Issues Need Help

[catfish307]

How long is the total length of flexwatt? The longer it is, the more of a temperature variance you will have from one end to the other.

[Kaorte]

Are you using the black flukers digital thermometer? that one is good for measuring ambient air temperature but not surface temperature. Try sticking a probe right on the plastic where the flexwatt is and see if that gives you a more consistent reading.

The shelves will vary in temperature by a couple degrees. The top shelf is usually hotter then the bottom shelf, not the other way around.