Today I was about to throw out an old computer tower with a plexi-glass side and built in fan. I posted on BYC asking if there would be any use for this, such as a window in a coop. Someone suggest an incubator. So I'm wondering if any of you have done this (with a computer tower), or have plans on how to make one?
On a working computer, the hard drive and other mechanical functions within the body produce heat. The fan is oriented to pull hot air out of the tower and bring in cool air. You could probably situate the fan so that it only circulates within the incubator, but you'll have to come up with a heat source to warm the air.