From my first chickies, I find those temps way to high as well. I am not going to even use 'heat' since mine don't seem to be looking for it, tho they do like lounging in the sunny window..I have the AC on in the house at 74, and my 2.5 wk olds are fine with that..Maybe it depends on the chickens? I agree watching them to see what they are doing (cold or hot) is best