I am not too experienced when it comes to working my own heating elements/heat tape, but perhaps you are using heat tape that is too high in wattage/power?

I use cages from a well known company and low wattage heat tape comes in the cages. Even if left running, without control, the max temps I get are 80-85 degrees.

I don't know why one would risk using a higher wattage that can fry your animals. Seems this low wattage is more than ample.

Just my $.02

thanks, joe
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Thanks and take care - Joe Rollo
'Tis not the stongest of the species that will eventually survive, nor the most intelligent, but the one most responsive to change' Charles Darwin

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