Homemade incubator help needed

[chasing ducks]

I built a incubator following the plans that won last year (called a gopher bator I think) I made a few variations, such as putting in 3 baby food jars of water and a jelly jar to get it to the right temp. My problem isn't over heating, I can barely get it to 100 degrees, my problem is if I so much as open a window it drops down to 95. How big of a problem will this be and can I do anything to fix it?

 

[trilyn]

Can you put it into a closet or a basement? Somewhere that doesn't get used very often? The less foot traffic a room has, the better or at least somewhere out of the way of drafts. Good luck, believe it or not, mine is in the kitchen. But it is in a nook that is pretty much free of drafts and it seems to be fine there. Go figure! lol