Quote Originally Posted by craigafrechette View Post
Ok. I'm not sure I'm reading your question right, but we'll see...

The probe goes outside the enclosure sandwiched between the UTH and the glass/tub.

The UTH should be stuck to the bottom of the enclosure (you may need to use aluminum tape)

The enclosure should be slightly elevated from the surface it's on to allow for airflow.

You should be using your temp gun to measure the actual surface temp, not the substrate.

Your tstat could be anywhere from 2-10° different from your actual surface temp. It's just a matter of trial and error with no one answer due to tons of variables.

For BPs you should be aiming for 88-89 for a hot spot.


I hope this helps. If not please feel free to follow up and I'll try to clarify. I kept my reply vague, so please forgive if I was too vague
sorry it's a bit hard for me to describe what the problem is. To simplify everything, the heating pad is just heating it to random temperatures. I cannot control it with the thermostat because it will just do whatever. It isn't from a faulty heating pad because I've already bought 3.

I looked over everything that could possibly be wrong and what I'm seeing is that when the heating pad is first plugged in, it eventually heats up to a good temperature and the hot spot is perfect. After a while, the tank just isn't getting heated up. The heat pad is still working but not giving enough heat to the tank even when I turn it up higher. The only possible thing I can think of is that the thermostat turning the heating pad off is making the tank cool down quicker than it's being heated.