Okay I have hova-bator and I was wondering who else was having problems with humidity and temp fluxs. I figured out that above the fan was where I was losing alot of humidity and heat. This time around I put a cap to a 16 oz bottle water over the screw and never lost temp or humidity during the first 18 days I didnt have to open it at all left everything alone (yes I have an auto turner) It is day 19 and I have lots of piping going on. I think this worked great for me. Anyone else have any thoughts on this if they may be having an issue?