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Twin wall flue SFL Sflue

SFL Sflue twin wall flue

Sflue is a mid range twin wall flue chimney system designed for use on woodburning/multifuel stoves, manufactured by SFL.

  • Twist lock jointing system - secures using locking band
  • 15 year warranty
  • Compatible with Excelsior Plus Twin wall flue systems
  • Operating temperatures up to 450 deg C
  • Insulation thickness 25mm
  • Internal skin is corrosion resistant 316L stainless steel
  • External skin is 304 stainless steel
  • Design allows internal expansion at every joint.
  • Internal joint system prevents moisture draw through
  • HETAS listed for use on solid fuel applications

Locking band is included with all parts having a female collar

Diameter is internal



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Our commitment

We pride ourselves on our customer service and aim to get our flexible flue liners and flue liner accessories to you quickly, which is why we keep products in stock.

We welcome trade and retail customers and deliver nationwide from our Nottingham base, East Midlands. Free delivery on most orders.