Temp variation limits

I think it was set at 101.
Usually 70 percent .

I never did get mine figured out to get much better than that.

Went to a 1588 genesis and cabinets and my hatches are usually around 90 now.

I gave mine away to someone wanting to start. They got a few to hatch and were happy.

To be honest I had a lot of cooked eggs and severely staggered hatches in the LG I had. Just because of the temp swings.
 
I kind of figured that. I'm hoping to get 8 hens...out of 41 eggs, I really hope that I can get at least that...

Maybe I will rotate the eggs in addition to the lid...
 
I'm not experienced nor am I an expert but this is what I did and just had 12 of 14 hatch 2 days ago. I too had wild temperature variations.

I took an egg not being hatched and drilled a small hole in it, the size of the end of my digital human thermometer I got from Walmart for like $5 in the pharmacy area. I stuck the thermometer under my tongue to check my temperature and low and behold it said 98.6. I considered this calibrated.

After drilling the hole in the egg I put a small piece of electrical tape over the whole and put it in the incubator. I would use this thermometer inside this egg as my gauge as inside the egg doesn't experience the temperature swings that the ambient air does. I ran it like this for a couple days and got consistent "in egg" temps of 99.5.

Once you fill the incubator with eggs you will notice the variations are much less (less ambient air and more heat sinks). I am sure you will have good luck since you are like me in over-analyzing everything.
 
I'm not experienced nor am I an expert but this is what I did and just had 12 of 14 hatch 2 days ago. I too had wild temperature variations.

I took an egg not being hatched and drilled a small hole in it, the size of the end of my digital human thermometer I got from Walmart for like $5 in the pharmacy area. I stuck the thermometer under my tongue to check my temperature and low and behold it said 98.6. I considered this calibrated.

After drilling the hole in the egg I put a small piece of electrical tape over the whole and put it in the incubator. I would use this thermometer inside this egg as my gauge as inside the egg doesn't experience the temperature swings that the ambient air does. I ran it like this for a couple days and got consistent "in egg" temps of 99.5.

Once you fill the incubator with eggs you will notice the variations are much less (less ambient air and more heat sinks). I am sure you will have good luck since you are like me in over-analyzing everything.

I'm shocked to say that I don't think I've heard of that being done before. I'm having a duh-huh moment. I think I'll try it with my next set. :D

P.S. For those who over-analyze... There is light at the end of the tunnel. I did the same starting out. Now I turn it on, plop the eggs in, and rarely even check the numbers. I candle quite often and follow their lead to decide if any adjustments need made along the way.
 
Thanks! I made sure to keep an eye on the humidity and air sacs along the way, but for the most part I was hands off. It was my first time incubating and plan on building my own incubator for the next time, I think I can make it much simpler and efficient. Just gotta find time and get my polish to start laying and I will see what I can come up with.
 
My husband is going to quickly add another fan in there tomorrow when I open them to move them around. Hopefully it will help because the front row is only reading 90 :( :( but I know that the main part that it's hitting is 102....hopefully one day like this won't ruin them, and hopefully the fan will make it more even.
 
Good news everyone, well...better news. We installed a fan this morning when the first 24 hours passed. The front row never got above 90 over night, and the hot spot remained hot. After the fan was installed, the other areas of the incubator became a little more even temperatured. The hot spot is still measuring 103.4 at the top of the eggs, but the opposite side is 100.3 and the front is at least up to 96 and some. We are about to install another fan/move the first and I think that will do it. I will show you a picture when it's done.
 
Up to 97.5 and still rising!! However these two fans are louder then the one original. I know its a stupid question, but will loud fans damage their hearing?
 

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