Cornishninja are you measuring the surface temperature or the glass temp under the substrate? Also what kind of substrate are you using?
To everyone else. Is setting the thermostat to 98 too high? I took the thermostat probe out of the tank and mounted it to the backside of the UTH. I hot glued a thermometer probe to the glass above the UTH and it reads about 94-95. I have about a half inch of cypress substrate. I measured the surface temp with an IR thermometer and it reads about 81-82. My fear is if I thin the substrate and raise the thermostat tempurature he may burrow down and get burned.