Excess smoke usually indicates incomplete combustion, poor fuel quality, or clogged burners. Gas boilers may need flame adjustment, while coal boilers require proper ash removal and airflow.
Common Causes
- Poor fuel quality
- Incorrect air-to-fuel ratio
- Dirty or clogged burners
- Scale buildup in tubes
How to Reduce Smoke
- Clean and inspect burners regularly
- Adjust flame settings
- Ensure proper fuel storage and dryness
- Maintain airflow and chimney draft
