Drop-flue pan and freezing temps

[Woodsrover]

Will be running a drop-flue pan for the first time this year. I'm sure its been discussed here before but should I be worried about sap in the pan freezing between boils? Will it freeze hard enough to damage the pan? Should I keep a light bulb in the arch on the cold nights?

Thanks!

[buckeye gold]

If you are going to have a long cold spell then drain it and store the sweet. If not a hard freeze you will be fine as sweet freezes intomore of a slush until it gets real cold. A 150 watt bulb in the fire box will hold you through most freezes very well