Living in upstate NY for twentyfive years has taught me a thing or two about power outages.
One thing not mentioned so far.... water pipes freeze. If you have absolutely no heat, water pipes can freeze and burst within a day or two. Then you have a much more expensive cleanup.
Solution.... let a few faucets drip at a slow pace... this relieves pressure and you can also collect the water for personal use. Don't forget OUTSIDE faucets!!!
Stay warm this winter.
Do you mean turn off the outside faucets or let them drip?