I agree with Tummyman, depending on how long you're gone.
You will have to remove bottled liquids from bathroom and kitchen up to a point. Mouthwash and booze won't freeze, some, like ketchup and cooking oiul might, but put them all in a water proof container, and if they survive, OK. If not, so what clean out the container. On a slab, i.e. no basement, there is likely a utility room. Maybe you could set up a small heat system just for that space? Valuable artwork and wooden musical instruments may not like the dry air in unheated space at 0 F so total shutdown may not be for you, but it is certainly the best way to save on heating costs with no fear of burst pipes.
Some monitored security systems have a temperature option.
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