Twin Wall Flue

DEKS Industries Europe Limited

DEKS Europe has been distributing twin wall flue since 2006 after being anointed as the official Selkirk distributor following the liquidation of Selkirk Manufacturing Europe in 2003. In 2012 DEKS Europe introduced a new twin wall system to the UK market named Seldek.

The Selkirk Twin Wall chimney system is designed for use with oil, gas and solid fuel when used with the appropriate fire stopping components and is designed for gravity flow application.

It's available in a range of diameters and this brochure relates to the 127mm (5”) – 203mm (8”) range and consists of straight lengths and fittings which are constructed entirely from stainless steel and a 25mm (1”) insulated annulus.

The external skin is manufactured from 304 grade matt finish stainless steel and carries the structural load, and the inner liner is resistant to the often corrosive products of combustion, and is free to expand or contract as flue gas temperatures change.

It's 316 grade inner liner heats rapidly to produce a strong draught which ensures that waste gases are exhausted and condensation of the harmful products of combustion is minimised. The system can be used internally or externally. The relatively low external wall temperature permits installation with only a 50mm (2”) air gap clearance to combustible materials.

The Seldek® Twin Wall chimney system is designed to meet the requirements of multi-functional applications for a variety of fuels. The system provides a high quality and robust chimney with high thermal performance and ease of installation. It is suitable for negative pressure conditions where the maximum flue gas temperature does not exceed 600°C and is soot fire tested to 1000°C.

When used with positive pressure application such as pellet stoves or condensing appliances the Seldek system can be fitted with seals at each joint, seals must be ordered separately as required.

The system consists of straight lengths and fittings which are constructed entirely from stainless steel and a nominal 30mm mineral wool insulated annulus. It may be installed internally or externally and must conform to national and local building regulations. The relatively low external wall temperature permits installation with only a 50mm (2") air gap clearance to combustible materials.