I dont know about the heat plate ..havent used it ..sounds good
My 1st chicks I had in the house & used those hot bulbs ..they always seemed to be too warm ..
after a week having the babies ...i covered them up with a blanket at night & turned off the lights ..
6 of them in the house at 70 degrees ..it was warm enough...they all cuddled up & went to sleep .
They were fine
so if I am incubating / raising chicks in the house I do this ...
I even used a regular 75 watt bulb in the bin & they were warm enough with just 2 chicks
chickens also get the idea that when it gets dark it is bed time