Since power failures in the winter seems to be a common scenario so far, anybody know if there's a way to keep a natural gas furnace safely going without power? The fan wouldn't work, but at least it would be something. You could light it manually, and then with the battery-powered thermostat set high, would it keep fired up? I should know this. The worst/longest winter power outage we had, I was not at my home (big ice storm) and forget what we did, besides cooking in the fireplace. Thanks.

[Edit: maybe this should be a different thread in the campfire section?]