Rack tub temps vary between 85 and 95 on heat tape?
For my four level rack with heat tape, the hot spot of the top tub in certain spots are up to 95 while the hot spot of the very bottom tub is only about 84-86. The ones in the middle also vary (depending on the spot on the heat mat) between 85-90ish. If I lower the thermostat temp (which the probe is under the 2nd to top tub), the bottom tub temp goes way down to even 82, and I don't want that.
I got this rack made brand new with heat tape around the end of 2016.
Is it the heat tape going bad, or is it's just the way a rack works? Which would suck, because that's way more temp variation than I need. If I switched all the heat tape out for ultratherm UTH of the same size, would the temps consistency improve and would that be safe?
The heat tapes are all plugged into a single extension chord which is what is plugged into the thermostat. (a herpstat)
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