Four have already hatched! I started the chicks just before I went to bed on March 26th. The incubator went on the deck because DH says "No Livestock in the House!"
I'm in New Hampshire. That first night was COLD, as were many others since then. The cheap Chinese incubator got covered in towels, an old bath mat, and a torn-up felt-like blanket. I put a layer of bubble-wrap under the incubator. A couple of times, I had a layer of ice between the covers. I added a large plastic sled on top to keep the rain, snow and sleet off the insulated incubator. It did its job!
This picture is of the first two.
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More updates to come...