I heat the home with oil heat thru a forced hot air system and turn the Temp down to 46 Deg. I also have a freeze alarm system that calls me if the temp drops to low or we loose power for an extended period of time.
I turn the water off and drain the pipe just in case. One other thing I open the door to the kitchen cabinet to allow the heat to get to the water pipes in the wall.
So far this has worked for me for over 10 years.
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