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100mm (4 inch) Gas vent flue system SFL IL

This gas vent system (SFL IL) is suitable for gas appliances, typically in domestic or small commercial installations, with draughthoods or with a flue gas temperature not exceeding 250 degrees C and zero or negative pressure in the flue.

Components lock together positively to provide a strong rigid flue system and to ensure maximum ease of site assembly.

Features of this gas vent flue.

  • Twin wall construction - Aluminium and Zalutite
  • Air gap insulates and minimises condensation
  • Low external temperature reduces clearances required to combustibles
  • Atmospheric gas fired appliances only - Zero or Negative pressures in the flue
  • CE Approved EN 1856-1 T250 N1 D Vm L11030 O(50)

SFL IL specs

SFL-IL-gas-vent-twin-wall-brochure

More information available in the
SFL IL specs.

Adaptor to flexible flue liner - 100mm (4inch) - IL gas flue

price£ 16.72
(inc VAT) £ 20.06

Connects IL gas flue to flexible flue liner or fibre cement liner - lower end connects to IL flue

Flexible liner to IL connector - 100mm (4inch) - IL gas flue

price£ 17.63
(inc VAT) £ 21.16

Connects to the top of a stainless steel flexible flue liner at the point where the liner exits an existing masonry, or similar chimney.

Connector - 76mm to 100mm IL - 100mm (4inch) - IL gas flue

price£ 6.98
(inc VAT) £ 8.38

Connects76mm appliance to 100mm IL flue

Disconnector section - 100mm (4inch) - IL gas flue

price£ 51.42
(inc VAT) £ 61.70

Provides maintenance access without disturbing the flue system.

Adjustable length 305mm - 100mm (4inch) - IL gas flue

price£ 19.48
(inc VAT) £ 23.38

Adjustable length - effective length 75-203mm

Adjustable length 457mm - 100mm (4inch) - IL gas flue

price£ 25.67
(inc VAT) £ 30.80

Adjustable length - effective length 75-356mm

135 degree tee and cap - 100mm (4inch) - IL gas flue

price£ 62.09
(inc VAT) £ 74.51

135 Degree tee and cap

Firestop spacer - 100mm (4inch) - IL gas flue

price£ 9.58
(inc VAT) £ 11.50

Used at floor or ceiling penetration (or in conjunction with the Support Plate) to maintain the required clearance to combustible materials.

Support plate - 100mm (4inch) - IL gas flue

price£ 11.66
(inc VAT) £ 13.99

Supports vents at floor penetrations with the supplied support flange

Guy wire bracket stainless steel - 100mm (4inch) - IL gas flue

price£ 8.46
(inc VAT) £ 10.15

Used to attach guy wires to the flue for external chimney support

Storm collar - 100mm (4inch) - IL gas flue

price£ 9.49
(inc VAT) £ 11.39

Storm collar

Flashing EPDM Res 1

price£ 42.75
(inc VAT) £ 51.30

This flashing is used to provide a weatherproof seal where the flue passes through a tiled or slate roof.

Masterflash EPDM No 4

price£ 45.78
(inc VAT) £ 54.94

This flashing is suitable for sheet metal profiled roofs, flat roofs, boats and caravans. Comes with fixing kit.

Masterflash EPDM No 5

price£ 47.10
(inc VAT) £ 56.52

This flashing is suitable for sheet metal profiled roofs, flat roofs, boats and caravans. Comes with fixing kit.