khronik is spot on, well said.

Be careful about the difference between a human feeling cooler and actually reducing air temperature. People feel cooler in the breeze from a fan because there's water evaporating from the skin- not because the air is any cooler due to the air motion. Fans actually add heat to air by way of their motors.

Same for heatsinks or other chunks of metal. Your skin surface is about ~80-85F. When you touch something which has good heat conductivity and the ambient air temp is cooler than your skin, what you're touching feels cool- to you- but it is actually no cooler than the ambient air temp.
Al B. Fuct Reviewed by Al B. Fuct on . Very Interesting High Temps Solution. So now that summer is here, both my fellow farmer and I have seen our temps go through the roof. We shouldn't be even trying during the summer, but we both thought, wtf, lets try anyway. So our temps shot up to about 35C. We've both got massive fans etc, he has a cooltube, I chopped off the room halfway up with a sheet of polythylene, but we realized that the problem is that if the air going in is warm already, you're screwed. We started philosophizing about different ways to cool things. Rating: 5