Condo’s typically have gas insert chimneys. Single family houses can have them too. They look something like this: They use gas, to create the fire in the fireplace. The insert is like an appliance, and goes right into the chimney enclosure. These fireplaces usually have fake logs. Some owners can be confused how to work a gas insert fireplace. The instructions for operation are located underneath the sheet metal removable base panel. The instructions tell you how to light the fireplace. A lot of buyers think because the property has a gas insert fireplace that there isn’t anything that could be wrong with it. This isn’t true. The big risk here is improper installation or defective parts. I recommend having a chimney inspection if the property has one of these.