Lextextrapper,,you have a fantastic setup as far as a large brooder goes. With a little time and effort,you could install a few wafer thermostats,set up off the floor as high as the chicks heads are,and fully enclosed in window screen,to prevent shavings from entering?? You could possibly install a few red 26 watt light bulbs high on the sides of the walls,,this may help when the heat lights do come on,as to not startle the chicks? Run all wire and electrical connections outside and under the floor for safety.If you have an electricain friend,they may be able to wire a house thermostat into all the heat lights for you as well,,but voltage to a home thermostat is only a few volts. Again,really envy your design,and may use a lot of your ideas in the one I must make this weekend,,over 40 marans are due here this weekend,,with 40 more going in bator next week.Gotta think long term,and large numbers as well here.