The Shieldmaster increasing adaptor from single to twin wall takes you from 4 inch single wall up to 5 inch twin wall pipe in one go. It is the first twin wall flue part you will need for your twin wall flue installation. It connects directly to your stove spigot and then upwards to your twin wall pipes or to the length of enamelled pipe coming out of the top of your stove. It is usually recommended to come straight out of the stove with a length of enamel pipe as this pipe is both cheaper and harder wearing.
This product does not come with a locking band, as the next part you attach it to comes with a locking band. Attach the bottom of this product to your stove pipe or spigot with fire cement and the top connects directly to your twin wall pipes.
Please note – as with all twin wall parts the diameter quoted is the internal diameter – the external diameter is 2 inches larger due to the surrounding insulation.
Please see our Technical Information section for easy to understand guides for all the Building Regulations involved with stoves and flues.
For more information about twin wall flue installations, see our guide.
https://www.youtube.com/watch?v=_86NsaIlPFk

Shieldmaster twin wall flue pipe is precision made to achieve a smaller distance to combustible materials than many other pipes on the market. At just 60mm minimum clearance to combustibles and a 25 year warranty this brand of twin wall pipe really does the job well and is built to last. With its unique push fit system it easily locks with an included band without the need for any sealant or adhesives at the joins.
Shieldmaster flue products come with a 25-year warranty covering manufacturing defects, provided the system is installed and used in accordance with the supplied installation instructions. To maintain warranty validity, the flue must be professionally swept at least once a year by an approved chimney sweep, with a signed service record kept. When burning solid fuels, only those approved by HETAS or the Solid Fuel Association are permitted. Use of unapproved fuels or any indication of a chimney fire will void the warranty. For coloured flue pipes with a powder-coated finish, the surface coating is covered by a separate 2-year warranty.
Shieldmaster Twin Wall Flue Systems Brochure
Reviews
There are no reviews yet.