This set creates approx. 4,5m stack measured from the stove up. If you work out the measurement B+C in meters this will tell you how many meters of twin wall you will require. You may increase the height of the system by adding more straight lengts to the pack.

This twin wall insulated flue system has been designed for a double storey straight flue with an offset . In this system the Twin wall adapter can connect directly to the stove collar or a short piece of stove pipe (not included) which starts the system. The flue passes through 2 floor levels and all the firestop kits and finishing plates are provided accordingly. Once the straight flue passes in to the loft it goes through the roof level supported by an adjustable roof support and terminates through the roof, passing through an adjustable flashing and finishing off with a rain cap terminal. The offsets can be used anywhere suitable within the system to create the optimum termination for the flue, in most cases this is in the loft space purely for aesthetics. Please see our offset chart for more information.

If you wish to ask any questions or if you would like us to work out your twin wall system for you then please just e mail pictures or a rough sketch and measurements to us. We offer a completely free no obligation flue design and quote service.

G70 when in an enclosure and G50 when not enclosed.