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Excelsior Single Wall Flue Systems

Excelsior Single Wall Flue Systems

Available in a range of diameters from 100 mm (4”), to 300 mm (12”), this easy to assemble system of various lengths and fittings, is used to provide flue connection to oil and gas fired boilers and air heaters, ventilation for boiler rooms, general ventilation and air conditioning duct-work, laboratory fume cupboards and steam ventilation applications. Most of the system is manufactured using 0.55mm thick type 304 bright finished stainless steel. Where a greater resistance to corrosive conditions is required, some components are made using type 316 stainless steel. Nominal Straight Lengths range between 300 mm and 1800 mm. The actual installed length is 35 mm less because of the crimped overlap. (70 mm less with the Changeover Length). Excelsior is not recommended for use with solid fuel or condensing appliances.




  • Corrosion Resistant
  • Stainless Steel Construction
  • Range of Sizes 4” to 12”
  • Bright Annealed Finish
  • Easy to Assemble
  • Adjustable Lengths Available
Technical Details:  
Flue Material: 0.55mm 304 Stainless Steel
Flue & Fitting Diameters: 4”, 5”, 6”, 7”, 8”, 10” & 12”
Flue Lengths:

1 Ft (300mm), 2 Ft (600mm), 3 Ft (900mm)

& 6 Ft (1800mm).

Surface Finish: Bright Annealed Stainless Steel 
Maximum Temperature: 300°C