Our twinwall insulated flue can be used either internally or externally as part of a flue system and is an excellent way of getting around having no chimney. This flue system can be used for domestic heating and hot water systems it also meets biomass regulations.

The outer skin to our 0.5m 6" twin wall is manufactured from 304 grade stainless steel and is 0.4mm thick, the flue can be powder coated in a high temperature black finish. The fully welded inner skin of the flue is produced from 316 grade stainless steel and is also 0.4mm thick. The insulation is compressed rockwool giving a density of 128kgper cubic metre.


  • 10 Year Warranty 
  • Only 60mm clearance required from combustables
  • Supplied with a FREE locking band
  • Quick and easy to install (designed with the installer in mind)
  • Fully welded and insulated with high density rockwool
  • CE and Hetas Approved
  • No thermal bridges, insulation continuity throughout the flue system
  • All components individually boxed
  • Available in Stainless Steel or Matt Black


HETAS Approved
Warranty Lifetime

Additional Specifications

Product Type
Product icon
Estimated 3-5 Day Delivery

500mm Length - 6" Twinwall Flue (150mm)

In stock

Pay in 3 interest-free payments

Estimated 3-5 Day Delivery Estimated 3-5 Day Delivery

Product Options

* Required Fields

- +
Free DeliveryFree Delivery
Free Delivery
30 Days Returns30 Days Returns
30 Days Returns
Secure PaymentsSecure Payments
Secure Payments

What Our Customer’s Say