I'm having trouble gauging the inside temperature level of the hot side of my tubs. Currently I have heat cable hooked up to a Herpstat Basic+. I have two lines per level of rack that are an inch and a half apart from one another with 4" of foil tape over them to help spread the heat. I put one of my thermometer probes under the tub on top of the heat tape between the heat cable to get an idea of the temp there. I'm just wondering how the temperature will differentiate between the bottom outside of tub and the bottom inside of tub. My idea was to use a heat gun and hit the inside bottom of a tub and raise the temp on thermostat till it was 93F. Will this accurately gauge the hot side of the tubs interior? Also, what is a good temp good to buy?
Any information that can be given on the heat gradient between outside of tub and inside of tub (on the hot side) would be great.
P.S. I have just recently wen to this rack system from a tub and lid system that I was able to get more accurate temperatures on.
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