Our BP is squeaking when it breathes, possible cause?

[Exotic Ectotherms]

True, the temperature on the heat source will remain constant.

The cool side and ambient air temperatures are somewhat affected by a heat source (more so by overhead heat sources) but the air in the room will enter the cage and cool it down quite significantly.

Even with a 1/2" plastic cage with a heat panel, the cool side and ambients are still lowered a few degrees each night in my house (gets down to the 60's).

I wasn't counting on the house temps dropping so much. My house stays between 68 and 72 year round, that's why my enclosure temps don't fluctuate barely. I guess it certainly would affect the tank if your house dropped to the low 60's. My bad for assuming.....