What Are Coal Effect Fires? A 'Coal Efect Decorative Gas Fire' might best be described as an inset gas fire designed to give a low, but complimentry, heat level to a room. A Coal Efect Decorative Gas Fire is typically used in a room where an alternative heat source is also available. For example to compliment existing Cetral Heating These fires are desgined to be fitted into a standard brick constructed chimney (Class 1 Chimney/Flue)
