Yesterday afternoon, the furnace repair person made yet another call and the furnace may finally be working as designed. Since Thursday, the central furnace has been working, but only when it could draw air from the house, which means we had to leave the front door to the furnace open, exposing the firebox. We gated it off with a child gate, but it was still unnerving to look down and see the jets. However, the furnace fire box is now shut up again, and drawing its air supply from the outside world. Although the weather is too mild to make much demand, the furnace seems to be turning itself off and on in response to the settings on the thermostat.
We had planned to take a trip to visit family in Santa Fe over the New Year’s weekend, but decided that we didn’t want to leave the house when we still don’t trust the furnace to continue working.