Not extremely hot. I'm not exactly sure what to compare it to for an example...hmm, maybe say you had like fifty 60 watt bulbs in a particular room in your house - in lamps that were placed on the floor. What could you cover those lamps with to make the heat undetectable by infrared?
Thanks...
Is there a material that can effectively make a strong heat source undetectable by infrared, by covering it (the heat source)? A random question, I know - just curious.