Gas Logs can turn black for a variety of reasons. One reason is that the Gas Logs are not getting enough oxygen. This can be caused by several factors, such as:
· The chimney is too small or has restricted airflow
· The damper is closed or not working properly
· There is something blocking the air supply
· The chimney is improperly constructed or not vented properly
If the Gas Logs are burning too hot, they will turn black. This can be caused by a gas valve that opens too far or a pilot burner that is set too high. It’s best to have this addressed by a professional service person.






