Questions about my daughter's new BP

[rosiegirl]

48hours after feeding should be plenty. I'm sure you're aware (I apologize if I missed it) but definitely make sure the heat mat is on a thermostat as well. In regards to the CHE, I'd go with CHE on a thermostat and call it a day. No need for it to be on a dimmer as well.

How long should we normally leave him alone after a feeding?

yup, the heat mat is already on a thermostat!