Quote Originally Posted by lmartelli77 View Post
How so? As long as the probe is on the heat source the temp should remain constant, no?
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).