Questions about my daughter's new BP

[Mr. Misha]

Tomorrow we are going to put the new heat mat on the bottom. And add a thermostat to our CHE. Still not sure if we should just the CHE with dimmer with a thermostat or a CHE without dimmer with the thermostat!

And is it okay to re-do the heatmat once it's been 48 hours since he ate?

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.