Just curious how many holes you punch in your tin foil on top to get adequate ventilation / oxygen down in there to our friends. I have some punched on the cool side and some punched on the warm side. I made some little plastic 'slides' that I can move to adjust how many are open.
The issue seems to be if I open it up to make sure he's getting plenty of 'air' my temps drop. and my UTH won't seem to get the warm side up past 89. The thermostat is steady on trying to heat it back up but it just won't.
I have 3 layers of tin foil (shiny side down) on the screen top. I also put foil over the zoomed UTH on the bottom and then put foam board over that under the bottom. I have a small 3" strip of flex heat tape under the cool side with a rheo on it, also plugged into the thermostat. I have it adjusted to where it pretty much stays 10 degrees cooler than the warm side.
I just want to make sure he is getting enough oxygen down in there!!