Residential Building Inspector B1Public Safety and Special ConstructionHard
An inspector is checking a newly installed wood stove and its single-wall metal chimney connector. What is the minimum clearance required from combustible materials for this connector?
- A18 inches (457 mm)
- B9 inches (229 mm)
- C6 inches (152 mm)
- D12 inches (305 mm)
Show answer & explanationAnswer & explanation
Correct answer: A. 18 inches (457 mm)
Single-wall metal chimney connectors for solid fuel-burning appliances, such as wood stoves, require a minimum clearance of 18 inches (457 mm) from combustible materials. This substantial clearance is necessary due to the high temperatures these connectors can reach.
Why the other options are wrong
- B. This is not a standard clearance for single-wall solid fuel connectors.
- C. This is typically for double-wall connectors or certain types of vents.
- D. This clearance is sometimes seen for other types of vents or appliances, but not single-wall solid fuel connectors.
Single-Wall Connector Clearance (Solid Fuel)
The minimum distance a single-wall metal chimney connector for a solid fuel appliance must be from combustible materials.
- Applies to single-wall metal connectors
- For solid fuel-burning appliances (e.g., wood stoves)
- Minimum 18 inches (457 mm) to combustibles
Memory trick: Hot fuel needs ample space, eighteen inches, safe and sound.