Hey, Priss, DH and I decided to try your water heater thermostat idea in the Fridge-a-Bator, but just can't get it to narrow the range enough to keep the water weasel at the right temps. The air temp range goes from 102 down to 96 or so. Just cant seem to make it work for some reason. If we can't then I think DH will tear it apart and put the components back into the wooden bator. Maybe the multi layer, two story thing is the problem, dont know. In any case, he needs to get that hatcher working in the next five days. Glad yours is working out really well. He was messing around on the internet and calls me over to show me how this lady made her bator. It was your website, LOL!