5 Inch (125mm) Twin Wall Flue Systems
Gas Vent is a factory-made twin-wall gas vent system comprising of a range of straight pipe lengths and associated fittings and accessories. It is constructed with an aluminium liner protected by an outer casing of galvanised steel.
An air gap between the outer casing and the inner lining insulates the vent and thus ensures a strong draft at the start of firing to minimise condensation. The resulting low external temperature under operating conditions permits installation with only 50mm (2") clearance to combustible materials.
Lengths and fittings lock together positively to provide a strong rigid flue system and to ensure maximum ease of site assembly. Available in 125mm (5") diameter.
Gas Vent is suitable for residential and small commercial atmospheric gas appliances with inputs of up to 60kW. It is suitable for both internal and external applications; however, external applications must not exceed 3 metres as detailed in BS 5440-1.