Need pics of how you have your probe placement

[L.West]

I just tape the probe directly to the flexwatt. Of course the thermostat setting will be much higher than the tub temps, but you adjust accordingly.

So, your saying that it doesn't matter what number is on the "thermostat" in order to obtain the desired temp - is this correct?? My thermostat will only go to 110 degrees - will that be enough to get a 90 degree hotside??