To state again, a pre-fabricated fireplace system is also known as a “zero-clearance” fireplace. This is a fireplace made from a kit, that does not require any masonry. The components can be placed very close to combustibles ¬†without catching them on fire. These systems are common in apartment complexes, as well as single-family Dwellings. In the trade, we use round brushes that are soft to clean the flues, which are round metal piping. Over the last 24 years I have had possibly 5 customers that had the operating manual for the system. There is a right way (and a wrong way) to use these systems. Stay tuned for more data on operating these systems.