Three Creosote Stages
Stage-one soot sweeps easily with rotary brushes, but moisture-laden fires produce hardened stage-three glazed creosote. This dense tar bonds directly to clay liners and requires specialized mechanical disruption.
Cordwood Moisture Limits
Burning logs with moisture above twenty percent squanders heat vaporizing water rather than warming the flue. Test split firewood at room temperature using a digital pin-probe to protect flue efficiency.
Cold Masonry Pre-Heating
Exterior masonry chimneys often trap a heavy slug of cold air overnight, causing smoke spillage. Prime the column with a brief heat source near the damper before lighting full cords.
A cold flue draws poorly; we diagnose the draft before we pack away our rods.
Chief Technician, Blackwood Flue
Suspect a Sluggish Draft?
If smoke spills into your living space or your stove burns cold, schedule a rotary power sweep and multi-angle CCTV flue inspection today.