Life can be ironic.
Last summer I ran a circuit from the generator panel in the west side of the house to the furnace in the east side. I had to drill through a concrete wall and cut access holes in drywall to fish the wire through our finished basement. Big PITA, but worth it to have heat in the east side of the house during a power outage.
Didn't have a power outage for months.
Saturday the thermostat system for furnace in the east side of the house went out, so the furnace went down.
Sunday morning the power was out for 4 hours for the only time in 6 months.
The generator worked like a champ, but of course all that work to power the east furnace went for nought.