09/04/2026
The first cool morning of September usually means somebody in the house cranks the heat, and then wonders why the vents smell like something's burning. That smell is dust that settled on the heat exchanger over the summer, and it burns off within the first ten or fifteen minutes of runtime. It's normal the first time you fire up the furnace, and it should fade fast. If the smell sticks around past that first run, or shows up again on later cycles, that's when it's worth having someone take a look. Homeowners in Lebanon and Mason firing up the heat for the first time this month, that's what you're smelling.