re: Thermostat setting for vacamt house (winter weather related)

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As long as any pipes outside are covered, you can leave the tiniest little drip and it will be ok.

We don’t live in Indiana so the weather has to get cold enough and stay at those temps for a while to actually freeze pipes.

People love to knee jerk weather around Louisiana. Yes it gets cold but not that dang cold

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insulation only buys time. insulation does not add heat in only slow heat transfer, but given enough time the surface temp on the outside of the insulation will equal the inside surface temp

moving water will help delay freezing, but moving water can eventually freeze.... look at rivers that freeze

i remember christmas of '83 my dad was under the house thawing out pipes. temps stayed below freezing for 72 hrs. insulated pipes with dripping faucets still froze.

for the OP, safest bet is to kill the water supply at the meter, and drain down the pressure in the house. that means opening faucets. no risk to freeze if no water in pipes. do the same for the hose bibs outside.

make sure you turn off the water heaters as well...

as for temps 45+ should be good....

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Google says 55

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That's what I was thinking. That way the heat is only really running on the much colder days and nights.

Poor some antifreeze in commodes and each drain.

I think 66 is safe.

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i remember christmas of '83 my dad was under the house thawing out pipes. temps stayed below freezing for 72 hrs. insulated pipes with dripping faucets still froze.

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December of '89 in S LA says "hold muh frozen beer" to '83's event

A silver lining in '89 was the amount of frozen dead speckled trout that were free to the taking.

We keep the camphouse set to 55. Never had a problem in winter.

We keep it at 77 during summer (when unoccupied) to keep mold\mildew away.

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Shut off the water at meter. And drain the pressure off the system.

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Put antifreeze in the toilet bowl.