IL

IL is a twin wall insulated pre-fabricated domestic gas vent manufactured in the UK by SFL. It is designed for naturally aspirated domestic gas fired appliances with a draught hood/ diverter and where the chimney is required to operate under negative pressure, dry conditions and the flue gas temperatures must not exceed 250°C.

Features

• Available in 100 and 125 internal diameter.
• Aluminium liner and a zalutite outer case.
• 6mm air gap insulation.
• Vertical seams are rolled and securely locked.
• Inner and outer casing are joined at one end only meaning the inner liner is free to expand as the temperature changes in the vent.
• Suitable for internal and external applications.
• Suitable for appliances rated up to 75kW
• Not suitable for condensing and positive pressure applications.
• Twist-lock jointing system
• Range of flue boxes available.

Dimensions

Approvals

• Manufactured and certified to BS EN 1856-1
• Tested to BS EN 1856 with designation T250 N1 D Vm L11030 0(50)