We are currently cleaning and restoring this home in Duncansville, PA, that has damage due to a puff back. A puff back occurs when a furnace backfires and shoots smoke and soot into a home or business, covering drapes, bedding, furniture, cabinets, walls and everything in between. Puff backs can cause anything from minor inconvenience to severe damage to your property and heating system. It requires expensive cleaning and restoration in addition to repairs on your heating system.