I have been playing around with a old upright freezer. I am thing about using it for a brooder. With a 25 watt bulb and 34 degree outdoor temp it will maintain a 95-100 degree temp. I have a wafer thermostat and will install that and probably go double 60 watt bulbs. I am making baskets to fit the shelves. 4 inch holes for air exchange. Will a circulating fan bother the chicks? Have to have it or the top will be about 15 degrees warmer than the bottom.