Thanks, as I said I'm not too worried, but I like the hot water bottle idea. If the house gets below 74* I'll see what I can do. I was thinking about it, and we have an IV fluid warmer at work, so if I loose power at home but the clinic is still up and running I will have access to unlimited bags of 100*F fluid bags. He is due to eat on Thursday, but I'm going to skip it - I don't want him trying to digest if there is any chance he won't have the heat.