You know....the breaker that turns off the power to the Useless Furnace that's been running but since there is no ducts connected, it can't???
I kept going in there and hearing it running and it was driving me insane. So, I decided that I was going to find a way to turn it off today- or else rip it apart til it stopped running/wasting our money.
It was in the smaller breaker box in the kitchen utility closet.