In chimney cleaning and inspections, chimney cleaners adhere to the National Fire Protection Association (NFPA) Standard 211 that defines three levels of chimney inspections (Level 1, Level 2, and Level 3). Here is what Level 1 and Level 2 inspections by chimney sweeps involve:
Level 1 Inspection (Basic Inspection)
- When it’s done:
- Routine annual inspection for chimneys that are in regular use with no changes to the system.
- When the homeowner intends to continue using the appliance (such as a fireplace or stove) as usual.
- What’s checked:
- Exterior condition of the chimney (no major damage, proper clearance from combustibles).
- Interior flue (checking for obstructions, creosote buildup, and basic soundness).
- Basic components (flue liner, damper, smoke chamber, firebox).
- Tools used:
- Flashlight, basic visual assessment (no special equipment needed).
Level 2 Inspection (More Detailed, Includes Video Scanning)
- When it’s done:
- When buying or selling a home (real estate transactions require this).
- After a chimney fire, storm damage, or other major events.
- When changing fuel type (e.g., switching from wood to gas).
- If a Level 1 reveals hidden issues.
- What’s checked:
- Everything in Level 1, plus:
- Video scanning (internal camera inspection) of the flue to check for cracks, hidden damage, or deterioration.
- Attic, crawl space, and other concealed areas where the chimney passes through.
- Check for proper clearances from combustible materials in hidden spaces.
- Tools used:
- Chimney cameras (video scanners), and specialized tools for accessing concealed areas.
Key Difference:
- Level 1 = Visual, basic check for routine maintenance.
- Level 2 = More thorough, includes video inspection and other specialized equipment, required for home sales and major changes.
A Level 3 inspection involves extensive procedures, possibly including demolition if necessary, and is carried out when significant hazards are detected.
When purchasing a property, arranging fireplace maintenance, or if there is reason to suspect chimney damage, it is advisable to obtain a Level 2 inspection to ensure safety. Contact a certified chimney cleaner to have this safety inspection performed.