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Twin wall flue SFL Sflue

SFL Sflue twin wall flue

Sflue is a British made 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