Why Hard-burned Stoves Build the Creosote That Actually Burns
If you heat a Lorain County house with a wood stove, the yearly-sweep advice you read everywhere was not written for you. It was written for people who light a fire on Christmas. Your chimney is doing a job theirs is not, and it builds the dangerous kind of creosote on a schedule.
Three stages, and only one of them starts fires
- Stage 1 — soft soot: dusty, black, brushes right off. Normal. Not the problem.
- Stage 2 — crunchy flake: harder, sticks more. A good rotary brush still clears it.
- Stage 3 — glaze: shiny, tar-hard, fused to the flue. A brush will not touch it. This is the layer that becomes a chimney fire.
What pushes a stove toward glaze
Two things, mostly. Burning wood over 20 percent moisture, and running the stove choked down low for long overnight burns. Both drop the flue gas temperature, and cool flue gas is exactly what condenses into Stage 3. A house running a stove as primary heat does a lot of long low burns by definition — that is the whole point of the stove — so it trends toward glaze faster than anyone burning for ambiance.
Why the camera is not optional here
Glaze almost never forms evenly. It builds in the cooler sections — the top third of the flue, the bends, the spots a flashlight from the firebox will never reach. The only honest way to know which stage you are at is footage from a camera run top to bottom. We will show you yours, and if it is Stage 1 you will pay for a sweep and go back to your winter.
Burn dry wood, run it hot once a day, and get the flue scanned on the schedule your burning sets — not the one a calendar set for somebody else.