Furnace kept up just fine here, even after losing power for an hour. Not that surprising though, house is only 5 years old and we’ll insulated.
I did have kind of a disaster brewing today though. Sump pump and water softener line dumps into a ditch behind my property. noticed fresh standing water in my yard this morning. Ditch had froze and water was backing up the pipe, and freezing. Pipe cracked and water leaching into the yard. Had to chip away at ice in the ditch to open up the discharge pipe. As soon as I got through the ice with a tiny hole, water started gushing out over the ice, and water in yard drained back down through broken piece of pipe.
Never had an issue until yesterday, as there has always been enough flow to keep enough of the ditch open to discharge the water. Nothing to really do about it though, at least not when it’s a once a decade event.