Hi. We're supposed to get a lot of snow here and I'm afraid the power is going to go out on my chikies. Most of them are 3 days old. We have a generator to run the light, but the bad part is that we don't have any gas to run the genator at the moment. How long could chicks go without their light and heat at this time? It's around 70* in our house. What are other ways to heat them? Could I use a heating pad?