I have a 20 gallon tank, a baby ball python, and too many heating thingies to choose from.

I have a small UTH w/thermostat that works very well.
I'm trying to do away with the bright heat lamp.

So. Anyone have advice for setting up a DHP with thermostat? I kind of like the benefits it offers vs the CHE though I have one of those I can use if I must.
What temp do I set the thermostat at for the DHP?

Also, this Inkbird thermostat is ridiculous. Any advice on setting that up would be great too. It's temp readings are WAYYYYYYYYY different from my calibrated thermometers.