Wendy -
I'm not sure if there was a reason to drain the water heater. If you had hookups, of course, it would have stayed warm from the electric heating element inside it. If you didn't have hookups, the water heater is indoors (under the sink) and so it won't get any colder than the inside of the TM gets. Even then, it is very well insulated, and will hold its heat for a long time. Eventually, of course, it must be drained before you put the TM up for the winter. But draining at 5AM? Brrr!
Bill
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