The Firestop Spacer (also known as a Firestop “Plate”) is made from 316 grade stainless steel and is used on a floor and/or ceiling as the flue passes through, in order to maintain a 50mm clearance from the flue to combustible materials. It also prevents a build up of heat in the ceiling void. If a Roof Support or other kind of support plate is used above where the flue penetrates, a Firestop Spacer is only necessary on the underside. Made from 316 grade stainless steel. 30mm high grade insulation promotes efficient performance and protects against the build up of condensates within the flue system. All twin wall flue components are CE approved. There is only a 50mm clearance from combustible materials needed when using our twin wall flue. Every twin wall flue component is supplied as standard in stainless steel however we do offer a powder coating service to RAL colours for an additional cost, which allows the components to be supplied to you in a range of different colours to better suit your property. Please contact us for more information regarding this service.