Flue, Chimney and Renewable heat products
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B Vent

B Vent is a twin wall gas heating system manufactured in the UK by Schiedel. B Vent is designed for cost-effective venting of residential and small commercial atmospheric gas appliances with input up to 60kw. It is suitable for both internal and external use, either as a complete system or in combination with masonry, i.e. brick chimneys.
Note that BS 5440-1 requires the use of a stainless steel insulated flue on external runs exceeding 3 metres.


  • Available in internal diameters 100, 125 and 150mm.
  • Twist lock bayonet jointing system.
  • No locking bands required.
  • Aluminium inner liner and aluzink outer case which can be painted if required.
  • 12.5mm air gap between case and liner keeps the case temperature low.
  • When a joint is made, the liner covers the jointing collar, shielding it and permitting easy drain-down of any moisture in the flue.


Internal Diam. (mm) 100 125 150
External Diam. (mm) 127 152 178

  Filename Format  
B Vent Brochure B Vent Brochure .PDF