hi guys. i made a homemade cylindrical styro incubator, still air with 14-watt CFL light bulb near the bottom. its about 1 foot in height and .75 foot in diameter. the egg rack is at the middle. it has a a hole on top and on the sides (the same level as the bulb). i dont have any problem with the humidity as it stays constant at 50% but the temperature varies. in the morning the thermo reads 94F, in the after noon 116F and in the evening 90F. what can i do to make it constant at 100? its very hard to manipulate the holes and i dont have the time to do that every single time. please help. i really really really really want to hatch my leghorn eggs .