The tank gauge is on empty and it is 10 PM in January. Is that an emergency?
Yes — a run-out in deep winter is an emergency call, not a morning call, because the house starts losing heat immediately and the restart is not as simple as a delivery. Tell triage it is a run-out: the burner will need bleeding and the filter may have caught sludge from the tank bottom. And do not let it happen twice — a quarter tank is the order point, always.



