I bought a 5 tub 28qt enclosed rack with 11" back heat, and I am trying to get the temperatures under control. The herpstat probe is fastened to the flexwatt with foil tape, and I set the temperature at 96F as a starting point. Over the past week I have steadily raised the temperature and I am now at 112F. Is this too hot for the flexwatt? Can I raise it more? I'm only getting 87F in the middle back of the tub. Ambient temps are 84F hot side 81F cold side.

I have another identical rack with belly heat that I also have some issues with. I am able to get a nice hot spot of 91F in the middle tubs, but the first and last tub will be at 84F. What is the problem here?

Thanks in advance!

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