I have a question for those of you who live in cold climates. Has anyone one experienced a long term winter power outage? I have one 55, soon to be two. Here in Maine it gets cold in winter, and there have been storms that have knocked out electricity for days. If I lose electricity, I lose everything, heat, water, etc. . Has anyone had to deal with this? What did you do? My main concern would be keeping the tank temperature up. Any thoughts?