Where is your enclosure situated in your new place and where was it in your old place? Have you checked and ruled out any differences in the room temperature, amount of sunlight, amount of draft/airflow? Is it possible that in your new place, the room the cage is in just gets less sun, more airflow, more a/c, etc and is therefore cooler by enough that your rhp isn't quite enough to heat the cage to the same temperature as before?