I have just completed 1 of 2 dorm fridge incubators I am building. I installed a water heater thermostat purchased from Lowes. I am wondering if I got a bad one. The problem is it is fluctuating 17 degrees from shut off to restart. Right now, until I get it adjusted, it shuts off at 104 F, and comes back on at 88 F. I worked on my incubator last night until about 4:30 this morning. Lots of nice pain got me up anyway so I was tinkering to take my mind off it. I know you were dying to know that. Anyway, I fell asleep in the chair and had a dream. I walked into a giant incubator and there was this big black thing with big eyes, big nose, big teeth, and big ears. I said to it, "My! What a wide swing in temperature you have, Grandma Thermostat!" And it replied in a scratchy old voice, "The better to kill your eggs with, my dear!" So what do you think about my thermostat? Not the one in the dream, the real one.