There are few things better than a crackling fire in your fireplace on a chilly Detroit, MI night. But a fire in your chimney? Not so much. Chimney fires can occur when your chimney is too dirty. When not properly and continuously cleaned, it can become clogged over time, and which can lead to a chimney fire. These fires are especially dangerous because they may be burning slow and not be visible from the fireplace or the top of the chimney. Over time, these fires can reach high temperatures and spread throughout the rest of your home.