Hello all, I’m struggling with a climate box and in order to understand the problem better I came across this amazing tool. I try to represent my climate box in a very simplified way and what happens is that the air in the climate box becomes warmer than the heat source, which I think is technically impossible as there are no other heat sources. I use a constant temperature heat source with a certain speed to represent a plenum at the ceiling that distributes warm air into the climate box. I attached the file, so you guys can see what I am doing. Can you tell me what I am doing wrong? Thank you in advance!