We now supply a more economical Class 1 twinwall flue, HTS, made in the West Midlands.
Recommended where the flue is passing though the roof and in situations where the external flue temperature is a concern or a greater draw is required, this is available in 100mm (4″) and 130mm(5″) sizes.
You will need an adapter from single wall flue or from the stove, and a cowl (hat) on top.
Please contact us if you’d like to buy any combination of flue and flashings, or you are finding the shop section tricky to navigate.
Usually start with a section of single wall flue, and start the insulated flue at least 200mm from the ceiling; this is ideal for passing through the roof.
Available in various lengths, elbows and Ts.
The outer diameter of 4″ Twinwall is 6″ or 150mm
The outer diameter of 5″ Twinwall is 7″ or 180mm.
Though not as robust as Devon’s own SFL Nova, which we do still keep a stock of, this is a much lighter and more affordable product, still meeting all relevant standards.