This is working so well. I have them in a small tote, (of course, it is 19 degrees, cloudy and light snow) in the garage. I have been using a heat lamp during the day, just so they get light. The lamp is not real warm, I will check with a thermometer today, but it is no where near, 100 degrees. The chicks are active, eating, drinking and pooping, all good signs. They peep very often.
The first day, it was a family night at school, I was gone all day. DH kept the water up, and when he left for a couple of hours, he turned out the heat lamp to prevent a possible fire. When he got back, he said that they had crawled under the wooly hen.
They are nearly silent just an occasional peep, under the wooly hen. I have stuck them under there, and almost immediately they relax, quiet, and are asleep. I think the dark is good for them. Many worried that they would get tangled in the wool yarn strands, but that has not been a problem.
Going out to try and attach photos.