Twin wall flue SFL Sflue

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
• Also known as Excelsior plus Twin wall flue
• Operating temperatures up to 450 deg C
• Insulation thickness 25mm
• Distance to combustible material 50mm
• 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
• Diameter is internal

Locking band is included with all parts having a female collar