If you have no masonry chimney in your property we will supply a twin wall insulated flue. This flue is stainless steel (coloured options now available) and comes with insulation injected between the two walls, reducing the clearances to combustibles to as little as 50mm in some cases.
These chimney systems can pass through the house internally or externally up a wall and now come in matt black as an option. Other RAL colours available as special orders.