- Apr 8, 2015
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99.5 will work for chickens, but don't let it go any lower! Also, you could rig a computer fan up. We attached our to a phone charger for our Uglybator
I second that. That's what I have in my homemade Styrofoam one. I'm not very mechanical but a phone charger and a computer fan is all you need. My fan came from a scrapped machine at work. You could buy one for a few dollars if you can't find someone with an old non-working pc.